When To Plant Spaghetti Squash Zone 5 + 6

A spaghetti squash plant is a fruit that needs the right care to grow. It must have conditions where the temperature stays around 70 degrees Fahrenheit and humidity stay above 80%. The plant also needs enough sunlight to grow for about 6 hours every day. Some other basic requirements are soil, water, nutrients, and adequate space for the plant to grow in. There is a checklist for this here

When To Plant Spaghetti Squash Zone 5 + 6

Spaghetti squash is one of the most versatile and nutritious winter squash. In cold climates, plant in June or July; in warm climates, plant from April through May. Plant it in late summer for a fall harvest.

In zone 5 and 6, plant spaghetti squash when the temperatures are at least 65 degrees on a sunny day. That can be any time between now and September 11th (depending on how close you are to either of those zones). For example, in zone 5, plant spaghetti squash from April until August 31st. In zone 6, plant spaghetti squash from now until September 8th. (see below for cold hardiness)

How To Care For The Spaghetti Squash

The following are the growing guidelines for a spaghetti squash plant:


The spaghetti squash plant needs compost to grow properly and at a good quality level. The soil must be well-draining. That means that you have to have better drainage than around 80% of the soils in your area. You should also remember to use organic fertilizers on your spaghetti squash plants, as this will cause less growth of pests in the soil and will improve the overall quality of your food.


The spaghetti squash plant needs plenty of water but not too much so that it causes damage to its roots if you overwater it. It is essential to water it regularly but not so much that it causes root rot. The plant needs at least 1 inch of water every week to produce food at a good quality level.

You can water your spaghetti squash plant with a drip irrigation system, and the drip will deliver water into the ground, which the plant will take in through its roots. That is the best way to ensure that the plant stays healthy and has plenty of food for its growth.


For your spaghetti squash plant to grow, have good quality food and lots of space, it requires sunlight. It does not need direct sunlight all day but at least 6 hours of indirect sunlight per day for proper growth.

Soil pH

Spaghetti squash requires a relatively neutral (5.5-6.8) soil pH to thrive and bloom, with some varieties, requiring slightly higher or lower levels depending upon their type and species. If your garden soil is too alkaline or acidic, there is a chance that the growth of your spaghetti squash will be stunted or damaged in some way.

The easiest way to maintain this balance is by applying lime or ammonium carbonate agricultural fertilizers as needed throughout your growing season, as these fertilizers will adjust the soil’s acidity. Hence, spaghetti squash plants have what they need for healthy growth and blooming.


Food for growth can be provided through high-quality compost and organic fertilizers. The organic fertilizer will help in the overall production of food by improving the quality and quantity of the food produced by your spaghetti squash plants. The spaghetti squash plant does not need a lot of fertilizers, but it needs at least 1/4 cup of compost every week.


As with any other edible fruit, the spaghetti squash plant is susceptible to different diseases and pests, which you must be aware of. For a spaghetti squash plant to survive, it must be disease resistant. The following are the diseases that a spaghetti squash plant can get:

Bacterial blight: It is a fungus that causes the rotting of the fruit. It must be identified and treated before it spreads to other plant parts.

Verticillium wilt: It is caused by an infection of weakened fungus in the soil. It is deadly to the spaghetti squash plant, but it can be easily identified and treated by germinating a common seed in the area of your plants.

Verticillium dahlia: It is another fungus infection that degrades the plant’s health. It is a significant cause of yellow rust that affects the leaves and bottom part of the roots of your spaghetti squash plants.

Downy mildew: It rains too much on the spaghetti squash plants. The rain causes wetness which attracts fungal spores from nearby plants, which then infects all parts causing cells to mutate and cause fungus growth.


Spaghetti squash plants are susceptible to pests like aphids and whiteflies, destroying your crop and making it hard to grow spaghetti squash. You must take steps immediately if you notice pests on your plant, which can easily cause the plant to die. It is recommended to use effective insecticides before the pests find their way onto the spaghetti squash plants.


When To Plant Spaghetti Squash Zone 5

When it comes time to harvest, you should avoid pulling the spaghetti squash out of the ground because you will damage its roots and cause it to die by pulling all of its food out of the soil. Instead, take some scissors, cut the spaghetti squash up, and cook it. The stems are of no use for cooking but can be used to decorate your garden or house. The seeds inside can be harvested by pounding them in a mortar with a pestle or picking them out with your hands.

When To Plant Spaghetti Squash Zone 5: Conclusion

The spaghetti squash plant grows well in most conditions. If you have adequate space and live in an area with moderate temperatures, it will grow successfully outdoors. However, plants can also thrive indoors in a pot for the winter months if you make sure the container has plenty of drainage holes.

Related Article: Winter Squash Companion Plants