Hardening Off Squash - How To Store Squash Over The Winter

Bowl Full Of Different Types Of Squash
(Image credit: AndreaObzerova)

Gardeners select from an amazing variety of squash with an astounding range of form, color, texture, and flavor. Squash plants are high in Vitamin C, B, and other nutrients. They can be cooked in a nearly infinite variety of ways, from desserts to soups, sautés, and purees. It's important to know how to store squash to increase their life. The fruit needs a little preparation before keeping to enhance its freshness.

How to Keep Squash

Some varieties of squash can keep months in good storage conditions. The rind must be kept from injury when storing winter squash and others, as this invites pests and infection into the fruit. Harvest the squash when they are the size you want for eating now, but for storage you need mature fruit. Dead vines may be an indication of ripeness or it may be when the squash twists easily off the vine. A better gauge is to push a fingernail into the rind. If it is hard and nearly impossible to pierce, it's ready. Cut the squash off with pruners and leave a 3 inch (8 cm.) stem for pumpkins and 1 inch (2.5 cm.) for winter squash. The stem helps prevent rot when you are keeping winter squash in storage.

Hardening Off Squash

Once you have harvested your squash, rinse off the dirt and lay them in a single layer. This will prevent damage from occurring to the rind. Properly storing winter squash requires you to cure the rinds. Hardening off squash is important to toughen the skin and create an impervious barrier against moisture, insects, mold, and bacteria, which would break down the fruit more quickly. High temperatures and humidity are the conditions to create a hard rind. Cure the squash for ten days in temperatures of at least 80 degrees F. (27 C.) and 80 percent humidity. Acorn squash don't need to be hardened off, as they lose their quality. Turn the fruits occasionally to expose them to air when keeping winter squash.

How to Store Squash

The squash keep longer if you can slow the respiration rate. This may be done by lowering the temperature. Every 18 degree reduction in temperature increases the time for storing winter squash. Keeping winter squash in a temperature of 50 to 55 degrees F. (10-13 C.) is the optimum range for most squash. Good ventilation is a necessary aspect of how to keep squash. It helps prevent rot and maintain uniform temperatures and humidity in the storage area. Keeping winter squash for the cold season is a great way to put fresh produce on your table. The length of time the fruit will keep varies by variety.

Bonnie L. Grant

Bonnie Grant is a professional landscaper with a Certification in Urban Gardening. She has been gardening and writing for 15 years. A former professional chef, she has a passion for edible landscaping.