How to Grow Spaghetti Squash



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Days to germination: 10 to 14 days
Days to harvest: 90 to 100 days
Light requirements: Full sun
Water requirements: Regular watering
Soil: Loose, fertile and well-draining soil
Container: Possible but not ideal

Introduction

The name of the spaghetti squash comes from its unique flesh. When cooked, the fibers give the squash a very distinctive strands that look a lot like orange spaghetti. The added texture makes spaghetti squash a favorite with children who turn their noses up at the softness of other types of squash.

Squashes of all kinds are very healthy, and often eaten more as a starch than a vegetable in a meal. You can’t eat spaghetti squash raw, and its best baked. The inside flesh is scraped out with a fork, to help bring out the “spaghetti” nature of the squash.

They are extremely high in vitamin A, and also good sources of potassium, fiber and vitamin C.

Starting from Seed

Spaghetti squash need a long growing season and warm temperatures, and that includes warmth at planting time. So any seeds would have to go out after your frost date as passed. But starting your seedlings indoors is a common way for gardeners to start their squash plants.

Plant your seeds inside about a month before your local last frost date. Squash seedlings will grow fairly large in a month, so small 6-pack style seed trays won’t likely suffice. If you start them that way, you’ll have to replant them in larger containers before your outside plant date. Three or four seeds can go in each 3″ pot, about 1″ deep under the soil.

They’ll need to be kept somewhere warm as well as sunny in order to properly germinate and sprout.

Transplanting

Plan to put your seedlings into the garden about 2 weeks after the date of your last spring frost. Your soil should be dug up thoroughly to get it loose for the big seedlings, and mix in some aged manure or compost while you are at it. Squash likes nutrients in its soil. Your squash spot needs full sun, and you should allow for 3 feet between each hill (you will just be planting one pot in each location, with 3 or four seedlings in it).

If you are not starting with indoor-grown seedlings, you will still have to wait for 2 weeks past the frost date. If you’ve had cool weather, you can lay black plastic down over the garden before planting to help warm up the soil. The seeds won’t sprout in the cold. Plant them in hills, just like you did with the transplants, about 3 per hill.

Many squashes can be grown vertically to save space, but this isn’t the best idea with a spaghetti squash. The fruits are just too big and it is awkward to try and support them on the vine when hanging in mid-air. It can be done, as long as you are willing to put in a bit of extra effort with your trellis and support structures.

Growing Instructions

Keep your plants watered, and weed-free while the leaves are developing. Once the wide leaves are fully grown, they will start to shade their surrounding soil and will keep the weeds out without your help.

After the peak of the summer has passed, you should remove any new blossoms that your squash vines produce. There won’t be enough time left for them to mature and the plant’s resources would be better used growing the already-developing squash on the vine.

Because the squash will be growing for the full length of the season, they can be prone to getting rot underneath where they lay on the soil. You can help protect your squash with tiles or coffee can lids under each fruit.

Containers

You can grow spaghetti squash in a large container, at least 5 gallons for each plant. Give them a light feeding part of the way through the growing season to make up for the lack of soil nutrients in the pot.

Try to plant a variety that grows as a bush to help save on space, such as Orangetti or Tivoli. If you do grow a vining squash, be prepared to have the vines spill out of the container for several feet.

Pests and Diseases

Once established and growing well, a squash vine is quite large and can withstand a fair bit of insect damage without ill effects.

The most common insect attacker will be squash bugs, followed closely by the popular cucumber beetle. They are both big enough to be picked off by hand as soon as you see one, but make sure to check inside the blossoms as well as under the large leaves.

And those large leaves may be a benefit when it comes to weed control, but they are susceptible to getting mildew if weather is damp. It looks like a dusting of white powder on the leaves and it can effect your plant’s development and growth if it gets too heavy. Standard fungicide sprays can help to clear it up, and you can keep it from starting by watering your plants right at the soil instead of pouring water over all the leaves.

Harvest and Storage

As mentioned, spaghetti squash are very large, with each individual squash growing to be around 4 pounds in size. Each plant will produce between 4 to 6 of them. They can’t be harvested like zucchini or summer squash, you can’t pick them when they are small. They don’t develop that way. Spaghetti squash (all winter squash actually) need to fully mature before harvesting.

A tried and true method to tell if your squash is ready is to push your fingernail into the outside skin. The skin should be tough enough to withstand your nail. If it punctures, your squash need more time. Depending on your climate, another sign is that you should harvest your squash when the vines start to wither.

A whole squash can be stored in the fridge for about 2 weeks before it starts to lose its texture. You can store your squash at room temperature, as long as you have somewhere very dry. Moisture will quickly ruin a spaghetti squash, but barring dampness, it should keep for a few months.

83 Responses to “How to Grow Spaghetti Squash”

  1. James  Says:

    Do the spaghetti squach run in the garden?

  2. Bart  Says:

    Yes they do. Its a vine similar to butternut squash, if you’ve ever grown those. They can get pretty long, so you have to help them stay in their growing area, or they’ll take over.

  3. rosie  Says:

    Thanks! Exactly the information I needed to supplement the seed packet instructions.

  4. Lissy  Says:

    Bart is so right about them taking over. We have our first ever crop of spaghetti squash. It’s amazing how the vines have “left” the garden, grown across the lawn and are nearly to the back wall of the house. They are FULL of squash. It’s pretty exciting since it’s our first try, but they are spreading like kudzu…LOL! Next year we will “contain” them in the garden better. We don’t want to disturb them this year and lose our squash. I came to this site to see how to tell when the proper harvest time is, so I’m glad to find that info. So good to know, since the timing is much different from zucchini or yellow crookneck squash, which we have a gazillion of right now and have to pick daily.

  5. Deborah  Says:

    I just grew 2 spaghetti squash plants that I started indoors in late March, took them outside during warm days through early April, then transplanted into my garden at the end of April. I just harvested 6 squash from 1 plant today and there are 8 more on another plant with another 3 – 4 that are coming on. A BIG BIG tip, keep the non producing blossoms pinched off, this REALLY helped production a LOT. It made the plant focus on the healthy squash instead of trying to produce unhealthy ones. When you get the squash started on the vine keep moving them about when they’re tough enough to stand it. It keeps the squash from rotting on 1 side. I would occasionally pick up the squash and dust them off as well, this really helped the skin. Another big tip, don’t pull them even though they’re turning yellow, wait at least another 2 – 3 weeks until they’re good and yellow before pulling. There are pricklies on the stalks, so be careful, I found this out pretty quick and was picking some out of my fingers. BTW, I have terrible soil, it’s red clay, packs down really quickly, and dries out pretty fast. To be honest, I think the squash like it dry. I only watered them once a week versus the rest of my garden. My remedy for the packing down red clay is to plant anything that requires a lot of nutrients in “hills”. That means I gather the dirt up into a foot and half tall mound and then plant with all of the starter soil still attached to the plant. The tried and true method of burying a fish at the root of the plant works amazingly as well. We just used Miracle Gro a few times. I do not use pesticides, I just keep pulling any pest off the vines. I make it a point to go into my garden daily. As for how long it took from transplant to harvest, almost exactly 90 days. I would think the Miracle Gro boosted that time. I cannot grow carrots in my soil, they never get bigger than my pinky. I also do not have success with potatoes. These things I have given up on. Everything else does wonderfully.

  6. Bob Edmondson.  Says:

    I live in Calgary,Alberta,and i have planted some spaghetti squash for the first time this year.I started them in the greenhouse and then planted them in the garden.They are now about 4ft long and have squash on them.Our growing season is about 3 months if we are lucky.I have cut the end off some of the plants as i only have about 7 weeks to go before our first frost.I want to make sure some of them mature before the frost hits them.Is this the way to go or should i leave them a bit longer?.I have been feeding and watering them like i do my tomato plants which i have already taken the top off as they have 5 sets of flowers on.Any advise will be greatly received.

  7. Buff  Says:

    My wife and I grew it for the first time and figured that trellising it would be the best way to control this monster. My one plant climbed 7 feet high before I had to train the vines to go back down the trellis. There are some lovely vegetables on sturdy vines.

  8. Brian  Says:

    My plant keeps producing flowers but no squash. Any ideas what I am doing wrong?

  9. Penny  Says:

    I’m just wondering… Can you grow spaghetti squash from the seeds of the spaghetti squash you buy in the store or do you need special seed packet seeds? They don’t seem to have these seeds at the stores around here.

  10. Sharon  Says:

    I read that there are both male and female blossoms. The male have the pollen and open first. Do you have bees to pollinate? You can do it yourself if you pick the male flower with the pollen and tap it into the female flower(which has a yellow ball-like shape at the base of the flower) I’ve never had to try it, but that’s what I read. Good luck.

  11. Jan  Says:

    I have my spagetti squash growing on tomatoe cages. They are growing fast and look healthy and a lot of blossoms, but the small young squash are drying up. Why? They have plenty of watering. This is Arkansas, so heat is no factor. The plant looks really healthy.

  12. Rosemary Stanley  Says:

    I have grown spaghetti squash for the first time and used seeds saved from a grocery store squash. they grew great, in fact nearly took over my garden. I did have some trouble with bottom rot with the damp ground and weeds (will correct that next year) but a bigger problem was a grub that burrowed into the flesh and caused considerable damage. Is this the above mentioned squash bugs or cucumber beetle? I am planning the trellis plan next year and I think that will help.

  13. shannon  Says:

    Pollinating curcubits by hand is fun and you can create all sorts of crazy hybrid fruits by wiping pollen from zucchini,gourds,squash,pumpkin etc into a female flower from a different type. And yes you should be able to grow from seeds from produce you’ve bought especially if its locally grown – ie right for your area, ripe and not treated with nastys so that it can be transported for 1000′s of miles!!

  14. Charles Hryniewicz  Says:

    I planted 2 seeds from a squash I bought in a store. The vines are growing everywhere as other people have stated. I have quite of lot of squash growing, but none of them resemble Spaghetti squash. They all look weird, some like crooked neck gourds, some like knoby pancake squash, different colors, some look like yellow summer spuash. Don’t know what the end product will be, so I’m going to let them grow. I’m in Southeastern Il. Any thoughts.

  15. bobbyjim  Says:

    Tried growing Spaghetti squash for the first time this year. Yikes…..! My wife says I didn’t read up enuff on the subject (she’s right, of course).
    Some while little worms started drilling thru the plants. Some had fallen off other I cut off to get them away from the bugs. They’re all over one pound and about 11-14 inches long. Are they edible….???

  16. bobbyjim  Says:

    forgot to ask:
    how long will they keep after cutting them down, and how are they best stored…???

    thanx

  17. Bev  Says:

    Hi does anyone know where I might buy a spaghetti squash in the UK I have found forums saying Waitrose stock them but I e-mailled them and they no longer stock this line. Thanks Bev

  18. Maria Birch  Says:

    I put all my kitchen peelings, etc into my vegetable planter boxes all Winter. I guess the seeds of a spaghetti squash I threw away decided to spout under my zuchinni plants. I have several large spaghetti squashes speading everywhere in the yard.I love it!

    Bev – would you like me to send you seeds? I can look for them at the store or give you some of my seeds when I cut open my squash.

  19. Mark  Says:

    I have what i believe is a spaghetti squash plant; it grew from seed that made it into my compost pile. The plant is huge…20″ feet across and there are 4 large and several smaller squash. The largest are the size of a large watermellon…really big. If i had to guess, i’d say 10 lbs. Is this normal?

  20. Sandy  Says:

    My spaghetti squash is growing with beautiful leaves and flowering but I don’t see any squash and the stem part coming out of the earth seems shriveled up. Any ideas?

  21. Nancy Waller  Says:

    I have many HUGE squash growing and since I have never grown these before I’m not sure what they are supposed to look like. They are long, fat, green stripes that look similar to watermelon, except for the shape. Do they turn yellow? Is it too late for them to fully ripen? We are in St. Paul, Mn. They have been in the garden about 80 days (?) Can’t remember exactly when I planted them. Thanks for any help you can give me.

  22. Administrator  Says:

    As the squash ripens, the stripes disappear.

    Hopefully you have enough time left, if a frost is called for consider covering the squashes.

  23. Rosemary  Says:

    An idea for everyone picking late-season blossoms off: fry them up Italian style (delicious)!
    I’ve mainly had this with zucchini blossoms–sometimes stuffed with a bit of cheese–but I think any squash will do, and hey – “fried spaghetti blossoms” sounds quirkily catchy. No tried and true recipes of my own to share, but here are a couple likely to pan out:
    http://www.saveur.com/article/Recipes/Stuffed-and-Fried-Squash-Blossoms
    http://www.publicradio.org/columns/splendid-table/recipes/vegetable_flowers.html
    btw, The Splenid Table says this of male vs. female flowers (holds true for spaghetti squash): “You want male flowers which have stems. Females are attached to the squash. Harvest flowers once they have just opened and use them as soon as possible.” … probably good to know if you’re trying to help out the bees, too.
    The Rusted Garden has nice photos of male vs. female flowers:
    http://therustedgarden.blogspot.com/2011/06/spaghetti-squash-male-and-female.html

  24. angy  Says:

    We had to take out spaghetti squash in before they ripened. They are still green striped with a little yellow. Will they ripen in the house?

  25. Perkins  Says:

    I’m wondering if, when the squash starts to grow, you can trellis them on a fence and keep them supported by putting them in a loose piece of panty hose. This would support the squash and allow for growth and, hopefully deter those little bugs. I am really excited about starting a planting next spring!

  26. Yvonne  Says:

    I started my spaghetti squash plants late (Sept)
    and still have 4 on their vines. I was looking for information about taking them off the vine.
    I tried to stake them; they are too heavy. So I’m using a shallow round pan upside down to rest the largest one on. Trellis and pantyhose sounds like a great idea.
    My squash are yellow before pollinated and when they grow.
    This is my first attempt @ growing squash.

  27. StarmanSyd  Says:

    Hi there,

    I’m in Australia, I have grown Spaghetti Squash before quite sucessfully, but this year my plants seem only to have male flowers. Can anyone give me any ideas of how I can encourage females to develop, if possible!!!!! I know how to polinate the flowers, I do it regularly for my Zuchinnies and other squash so if the female flowers come along there should be no excuse for squash to develop. By the way since I have grown the plants we have had a huge amount of rain. Australia is supposed to be dry, this year its not.
    Any help would be greatfully appreciated. Thanks

  28. Rose  Says:

    StarmanSyd, I also live in Australia and am having the same problem with my spaghetti squash – all male flowers and no female. It has been very rainy and also uncommonly cold for this time of year. Did you find a solution?

  29. DJ  Says:

    The panty hose sounds like a good idea because we used the same system to “sling” canteloupe–it worked great for very heavy fruit. Looking forward to growing the spaghetti squash here in Nebraska.

  30. michelle lewis  Says:

    I”m not sure how much water to give My SpSquash? I started seeds from a Squash My Husband bought at the market! We live in Phoenix Az & its Our winter now ( lows in the 40″s) I’ve been giving them a few gallons every 3/4 days OH! I have 4 plants growing & 1 producing the FRUIT now ( it gets longer SUN ) anyway since I now have the FRUIT do they NEED MORE WATER? THANX New Gardener….

  31. Vikki  Says:

    A couple of things I’ve learned that may help others – YES, you can dry and plant the seeds from the Spaghetti Squash you buy in the market – I do it all the time, works great. If the new fruits dry up, wilt and die – that’s a pollination problem. To correct you need to hand pollinate. Pick a “male blossom”, the one with no fruit beneath it. Strip off the petals – brush the stamen inside the blossom of the “female blossom”. This will pollinate the blossom and should help.

  32. Amanda  Says:

    StarmanSyd and Rose,

    I am in Northern Australia and am hoping that I can give growing Spaghetti Squash a go during winter. Do you have any tips for growing them in OZ? Thanks !

  33. Claire Stephens  Says:

    I’d just like to get my hands on a spaghetti squash. I used to love them but I don’t think I’ve set eyes on one in around thirty years. They were all over the place here in Queensland, Australia in the late 70′s & early 80′s Where d’ya get it?

  34. Rudy A  Says:

    StarmanSyd + Rose:

    If your spaghetti squash does not bear any female flowers at all (that is, all male flowers), the likely reason is that they bear female flowers on short days and long nights.

    pls take time to go to this link:

    http://www.tropen.uni-bonn.de/new_website/englische_seiten/Study/CUCURBITACEAE_PAPERS_1.pdf

    “…the long photoperiod days and high temperature induces (to) the plant to the masculinization, mean while the short days and the low temperatures to the feminisation”.

    Hope this helps.

    Rudy

  35. Rachel L  Says:

    I planted my first crop this year. They are everywhere. If I put them on a fence and sling the fruit, can the fence get hot enough to burn the plants? I am in the South, and 100 degree days are just around the corner.

  36. C Walsh  Says:

    Im new to gardening and planted some SpSquash. I started the seeds in a larger pot outside (sowed them May 29th) and was wondering when I should build a planter bed and replant them into my garden. The leaves are about 3″ and have a 2″ crinkled leaf sprouting. I understand these things grow fast…but how fast?

    Also, I lan to use a tomatoe trellis since my patio doesnt seem large enough. Can I also plant my watermelon in the same raised bed or are these plants not compatible? Thank you in advance. Any tips & advice welcomed. Im growing a lot of new things too &a could some tips: tomatoes, peppers, carrots, kale, spinach, onions, strawberries, green beans, &a herbs.

  37. J Butkovich  Says:

    I planted for the first time spagetti squash and i think i picked them to early. They are very large but green. Will they ripen in the house.

  38. Lisa  Says:

    I grew spag. squash for the first time this year. I happened to have a sturdy wire fence behind the plants and they took off on and around it and now the fruits are hanging off the fence and it really seems to be working well-no burning as of yet. (july 10)

  39. Teresa  Says:

    I’m in the UK and have grown SpSquash for the last couple of years both trailing on the ground and up trellis. They are great.

    This year I made a hot bed i.e. plenty of rotting manure and compost capped with topsoil and planted out into this. Well I know they grow fast but this are visible bigger not just daily but I think hourly.

    I also find han pollinationg is best

  40. R. D.  Says:

    My parents grew spaghetti squash years ago. I remember the vines trailing everywhere. I hadn’t been able to find the seeds locally until this year. I bought a packet of Burpee seeds and planted them where I’d have plenty of room to train them. To my amazement, they aren’t trailing at all! They’re growing on a contained plant. They’re definitely spaghetti squash, but not like I’ve ever seen before. I’m sure gonna save some seeds from these, as my garden area isn’t large enough to grow very many trailing plants.

  41. Jamii  Says:

    I have seeds! (-8
    I can’t wait to plant them. However, I didn’t realise they trail. Is good to know.

    Thank you heaps!

  42. Richard  Says:

    Just this evening my wife baked a 2 pound spaghetti squash, and it was wonderful. I kept the seeds, and wrapped them in a paper towel to naturally dry them out.. I have been planting butternut squash, tomatoes, peppers, and cucumbers in 5 gallon buckets now for over 4 years here in South Central Florida. I finally had some success with Butternut Squash, and letting the vine grow on Lattice. This worked well as you can train the vines by pulling them through the holes of the lattice. The Tomato plants this pass year gave me a crop that was beyond my dreams, not only plenty of te beautiful fruit, but some tomatoes were over a pound or more. They looked like small pumpkins. These Tomato plants finally got water damage from too much rain, and died after providing a wonderful crop during most of the summer, I am now waiting for the new tomatoes to ripen as the crop looks great, and is mid December here. I will be planting my spaghetti squash seeds in about two weeks, after the shortest day of the year here in Florida passes (Dec 22). One worthy tip if someone uses planters, make sure you have plenty of drainage, drill about 6 holes the size of a dime along the bottom about one inch from up from the base which will` allow the water to come right through the container preventing root rot. I use Miracle grow every other week for a minimum of the first budding right up to harvest.
    Good luck everyone and Happy Planting and Harvest!

  43. Brad Markham  Says:

    Hi guys!

    Thanks for your advice!

    If I want to keep the seeds to grow my own squash will they still germinate after it’s been boiled, or do I have to remove them before cooking?

    Cheers,
    Brad

  44. NADINE  Says:

    I LIVE IN SOUTH FLA WHEN SHOULD I START THEM?

  45. NADINE  Says:

    I LIVE IN SOUTH FLORIDA,WHEN DO I PLANT THEM,WHAT MONTH, WE HARDLY HAVE ANY FROSTS?

  46. Marie  Says:

    Can i grow spaguetti squash in Puerto Rico?

  47. Heather  Says:

    I’ve grown spaghetti squash before here in Colorado and they’ve done well. They spread a lot like everyone has said here. I’m trying to think of a better place in our yard to grow them this year and was considering a narrow bed that borders a large area of landscape rocks.

    Does anyone know if the vines grow over the rocks, will that be too hot for them and the squash as they grow? The plant itself will be in dirt of course. The area will get 8+ hours of sun per day. Thoughts?

  48. Marina  Says:

    I live in South Africa on the West Coast. A friend in California sent me some seeds from a spaghetti squash she bought. I planted about six of these out in a big container filled with potting soil, as the soil here is mostly sand. All six plants have flowers, but only one made a squash, which is growing well. From reading the comments on here, I think the problem is with pollination as there are so few bees in the area, so it’s good to know the difference between the male and female flowers from the comments left here. I’m wonder if I can plant out in winter here – the temperature doesn’t go much below six degrees at night, and most days is around fourteen degrees. Any comments on this would be welcomed.

  49. fredleef  Says:

    wanting to know if spaghetti squash is a viable crop in western australia

  50. Charlette  Says:

    No you cannot use the seeds after you have boiled the squash. You have to save the seeds from a raw squash. I don’t boil mine, but bake the two halves with about an inch of water in the bottom of the pan, and covered — so it sort of steam-bakes. Anyway, once you cut it in half, clean out the seeds, and save. Cooked foods don’t have the “life” left in them so they will not germinate.
    Also, I grew spaghetti squash by “accident”, throwing the seeds into my compost heap and ended up with a huge hill of squash that did great – but as others said, it did send out runners for quite a distance. I knew someone else who grew accidental spaghetti squash this way, and wasn’t even sure what it was at first… never did a thing to it, but it loves compost and composted manure mixes.

  51. Holly Tomaszewski  Says:

    I have planted Spaghetti Squash lots of Flowers
    but no fruit? What am I doing wrong? This is the second time I’ve tried. I live in the Upstate South Carolina.

  52. Andrew Brommer  Says:

    We have 2 spaghetti squash plants that we are doing our best to corral in the garden. They have several fruit growing, but so far only 1 fruit has the yellow skin I am familiar with seeing. The others are more greenish with pale yellow “lines” for lack of a better descriptive. Are these simply immature fruit and the color will turn as they mature? At this stage it is difficult to determine if they are on the same plant or not as the vines have spread & tangled. The fruit appear quite large to me (in fact the greenish ones appear larger than the yellow). Or is one of our plants a different type of squash? We don’t want to pick it too early, but also don’t want it to spoil &/or rot.

  53. J.J.  Says:

    I planted 2 plants and both have lots of fruit, but not ripe yet. The plant has spread tremendously. But my problem is that now the vines near the base of the plant are turning brown. We had a extreme amount of rain and now a week of 100 degree temps. What is happening? I worried that the plant will die before the fruit ripen.

  54. Carol Ihli  Says:

    Where do I find the answers to everyone’s questions?
    I have so e of the same questions. When I went to the website on how to grow them the information was so basic and never got in to the whys and how comes.
    I want to know what the best soil is and why so many male flowers and only two squash so far compared to about 20 male flowers on one plant.
    I love spag squash and eat it in place of reg spag noodles, it tastes so much better and a lot more healthy.

  55. Marlane  Says:

    I’ve moved to Sweden and have yet to find spaghetti squash in the stores. I’m in Uppsala and have a nice size yard. Thinking that I may try to grow a few next year – but I am unsure as to if the growing season here would be long enough…. thoughts?

  56. Pat Gibson  Says:

    My spaghetti squash plants have done well, producing lots of baby squashes – but when they get to about 2 -3 inches long they just rot. Plenty of hot sun and regular watering, no sign of pests. Can anyone tell me what the problem could be? I have raised the plants off the soil with tiles so they are not lying on wet soil.

  57. Peggy  Says:

    Okay. I have very strong nails( they do not flex with hard pressure). If I am checking to see if my squash is ready to be picked, Is there a limited amount of pressure I should apply to the squash since my nails are very hard and can puncture just about anything? I hope this is not a silly question!

  58. Shelly  Says:

    I had the same problem as most others: Lots of male blooms and the fruit shriveled and died when it was about 2 inches long. I found on another website that the problem could be irregular watering, insufficient bees to pollinate or lack of calcium. I went to a nursery and bought some liquid calcium and applied as directed. I now have large, healthy squash and probably more than I need.

  59. Bruce  Says:

    Pat Gibson: What you’re describing sounds like “blossom end rot”. I’ve had it with summer squash, tomatoes and peppers. As I understand it is caused by calcium deficient soil. Add lime to your soil before planting and eggshells to your compost. I knew I had the problem but forgot to add lime before planting. I realized my error when the first little squash rotted. I found an online recommendation to dissolve a small amount of calcium carbonate flakes in water and spray the plant and soil around it. I hesitantly tried it on some of my plants (tomatoes, peppers and squash). That was several weeks ago; and none of the plants I sprayed show any sign of the problem.

  60. Fiona  Says:

    Am growing sp.squash for first time this summer, living in the Cotswolds, Gloucestershire. 2 plants have given 9 fruits, smallest is now about 7″ long, quite plump and pale yellow. The largest is about 10-12″ long and like a marrow, also deep yellow. When can I pick them, can I store in a dark cupboard indoors and how long will they keep? Once cooked, can the ‘spaghetti’ be frozen? I’m on my own and have no one to share them with. many thks.

  61. bonnie  Says:

    I had involunteery spagetti squash grow from last years crop do the seeds have to be frozen to germinate

  62. Jim Williams  Says:

    I had never planted spaghetti squash before. I planted it in late May and the vine ran amok taking over a large space in my garden. Today, I picked 3 of the squash, each about the size of a football, thinking that if I didn’t pick them they would soon rot on the vine. Having never seen or grown this variety before, I decided to investigate on the internet about them. That’s when I realized they were not ripe. I didn’t know that they have to turn yellow. These are green like small watermelons. Since they are not ripe, are they edible? If not edible, I’ll have to trash them; a big disappointment.

  63. Roger Koopman  Says:

    Interesting that you say spaghetti squash can’t be harvested early. My Jung Seed Co. packet states “Fuits may be harvested to eat as summer squash-type fruit when six inches long or allowed to grow to full size.” Who is right? Also, can vines that are getting too long be cut off at the terminus (much like you would “top” a tree to get fuller growth?) Or does this damage the plant and slow the growth of existing fruits?

  64. David Brown  Says:

    Can spaghetti squash be growen inside in the winter in Dayton Ohio?

  65. Nikkie  Says:

    I have grown Spaghetti Squash before and it was so easy. This year it’s been nothing but a headache. The plant itself is growing like CRAZY but the fruit is tiny and not growing at all. I’m afraid we’re going to have frost before I get anything off my plants. LIke a few others have said, they get to be a couple inches and then rot off. We haven’t had a very hot summer, but I’m watering every 2nd morning, weeds are under control….I don’t know what else to do. Should I start cutting the plant off so it can focus on growing what’s already there? Or will that hurt it? Uggh I wish I had a green-er thumb.

  66. Administrator  Says:

    Theoretically it could be grown inside, but they need full sun and warmth, and lots of it, and you’d need to manually pollinate. So essentially you need a heated greenhouse. But if you had one of those, yes.

    But… why? Why bother trying to grow it in winter? Winter squash (such as spaghetti squash, butternut, etc) lasts for months and months in storage. I’ve stored them as long as 12 months. There is no need to grow it in winter when your fall harvest lasts so long.

  67. Administrator  Says:

    @Jim Williams they can sorta ripen off the vine… but not very well and only if they were really close. If yours are still green, they weren’t close enough, compost them.

  68. JODY & ROGER  Says:

    THIS IS A FIRST TIME TRY FOR MY HUSBAND & I TO TRY OUR HAND @ GROWING SPAGHETTI SQUASH. ALL OF THESE Q&A’S ARE EXTREMELY HELPFUL. PLEASE KEEP YOUR FINGERS CROSSED THAT WE HAVE AWESOME RESULTS. I WILL LET YOU KNOW. THANKS A BUNCH!!! HERE’S TO “SQUASHING” WITH YOU.

  69. Louise  Says:

    I planted spaghetti squash in August 2013 in a 20 gal pot with a tomato cage to support it. Seems to be working fine. My problem is some sort of worm is boring into the young fruit through the exterior of the fruit and also appear to enter the vine through the blooms. I had the same problem with the ones I put out earlier and finally had to destroy the vines in July. Harvested only one squash from the earlier batch. The only insect I have seen (earlier and currently) is a small fly, bright greenish (not housefly type) buzzing around on the leaves. I have tried to spray them with a liquid Sevin (which I hate to do) but never can hit any of them. Any suggestions?

  70. Keith  Says:

    I live in Hawaii. We do have a rainy season, which is now in January. My plants look dead. Do they go dormant and revive in the spring? Or must you plant with new seeds each year?

  71. Doris  Says:

    Hello–can we use the seeds that are in a spaghetti squash bought at the grocery store to grow our own ??? thanks

  72. EBV  Says:

    For those of you in the UK looking for spaghetti squash, Real Foods (northern UK/Scotland0 occasionally sells the actual squash. I found some organic seeds at amazon.co.uk and plan to try those in a container and cold box…any tips with the cool wet summer here? Has anybody planted these outside with success here?

  73. Raelene Gavin  Says:

    I had great success growing spaghetti squash in a raised garden bed with a garde arch over it and training the squash vine to grow up the arch. The squash hung from the vines on the arch without any problems but I would have used panty hose to house the squash in if necessary. It saved a lot of ground room without vines growing everywhere.

  74. Linda  Says:

    Yes, You can use spaghetti squash seeds harvested from your grocery store squash. Remove the seeds before you cook the squash. Rinse the seeds in cool water. Make sure you get all the pulpe off the seeds. Dry them thoroughly. Place them on a paper towel or paper plate to dry completely (about two or three days). Store them in a paper sack in a dry place.

  75. Melissa  Says:

    I have been growing spaghetti squash in containers. My plants are producing flowers and I have had 2 tiny squash plants to form. However, the flower on the end falls off and they turned brown and soft and died. Any suggestions?

  76. Carol Rorer  Says:

    I keep getting flowers but I don’t see any spaghetti squash on them , what is wrong??

  77. Chris Marshall  Says:

    Never grown spaghetti squash before. Planted one
    already started plant in a box planter and now have leaves and yellow flowers. Don’t know how to get the actual squash. Will they be growing from the inside of the flower? Should I be feeding the plant now with something? Need lots of recommendations as I would really like to see this to maturity. Someone mentioned I might need two plants in order to get fruit. Do I? We live in MD near DC.Thanks for any help you can provide.

  78. michelle  Says:

    My spaghetti squash is growing real good but most
    of them are turning yellow and drying up.
    Are they needing something or could it be to much water?

  79. George  Says:

    There are just too many unanswered questions:
    >I keep getting flowers but I don’t see any spaghetti squash on them , what is wrong??
    >My spaghetti squash is growing real good but most
    of them are turning yellow and drying up.

    I too have a monster plant with little to show for it and some just rotted away or fallen off when size was about 2-3 inches.
    I must be doing something wrong, but what?

  80. Administrator  Says:

    squash never getting bigger than 2-3 inches usually is from incomplete pollination of the female flowers. Try hand pollinating.

  81. Ray  Says:

    All my squash has worm holes, what can I do?

  82. Joshua  Says:

    I live in Canada’s arctic and took my hand to spaghetti squash this year growing them in containers. I am having no problems growing them but they are getting rather substantial (the squash – the plants have taken over my entire balcony). I have one that is nearly four pounds but it is still whitish green bout the size of a football – maybe I’m inpatient but will it ever turn a deep yellow or should I pick it now so the rest of the fruit can continue to grow?

  83. Doug  Says:

    I planted spaghetti squash from seeds I took out of one. and I planted a 15 foot row and loaded the seeds in the row thinking that half of them might com up and all germinated and I have about 30 squash on the vines all doing well so next year I will plant half as many

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