Pick summer squash while the fruit is still small and the skin is glossy, and keep picking every day or two. The harvest is fast and the shelf life is short. A week in the refrigerator is the limit, so anything beyond what you can eat that week needs to be frozen, cooked ahead or given away. The rest of this article covers timing, storage and where in the house storage works.
When summer squash are ready in West Virginia
The signal is on the fruit: glossy skin that a thumbnail pierces with little pressure, on a squash that is still small. The window for the first picking is roughly mid-June to early July, counting from seed sown after the last spring frost. Picking then continues until fall frost ends the plant.
How many days from planting to the first squash?
Clemson Cooperative Extension says summer squash can be harvested about 55 days after planting. Squash is sown directly in the ground, so the count starts at sowing. At the Charleston reference station, NOAA’s 1991-2020 climate normals put the last spring 32°F freeze between April 9 and April 23. Seed goes in after that risk passes, from late April into May. Fifty-five days from late April lands in mid-to-late June, and from mid-May it lands in early July. A cold, wet spring that keeps the soil chilly pushes everything toward the later end.
Charleston sits in a river valley, and the state is not uniform. USDA’s 2023 Plant Hardiness Zone Map (built on 1991-2020 normals and on the average annual extreme minimum temperature) runs from zone 5a to 7a across West Virginia. On higher ground, shift your sowing later in spring and expect the season to end earlier in fall. If you want a local read, the WVU Extension office in your county knows the frost pockets near you.
When does the picking season end?
Charleston’s first fall freeze falls between October 18 and November 1. Summer squash is tender, so one hard frost finishes the vines. Before that, other things can end the season early. Squash bugs and vine borers are the usual culprits, and What Eats Summer Squash in West Virginia, and When covers their timing.
Weather matters too. Charleston averages 16 days a year at 90°F or higher, and the June-through-August rainfall is about 13.8 inches (June 4.72, July 5.38, August 3.75). August is the driest month. Those are long-term normals for one station, not a forecast, and they do not tell you how wet your own soil stays. Sandy ground drains within a day, while clay can hold water for a week. Heat evaporates moisture faster, and a single thunderstorm often runs off instead of soaking in. A rain gauge on your own plot tells you far more than the regional average, and steady water is what keeps a plant setting fruit through August.
Once a plant has a mature squash on it, it slows down on new fruit. So picking small and often is how you get a long harvest. If you are still deciding what to plant, The Best Summer Squash to Grow in West Virginia covers varieties. For the full season from seed to harvest, see Growing Summer Squash in West Virginia.
Keeping them, and for how long
Summer squash does not store. Clemson Cooperative Extension’s Home & Garden Information Center puts it plainly: store summer squash in a plastic bag in the refrigerator for up to 1 week. That is a maximum under good conditions, reached only with fruit that was picked young and handled gently. It is not a promise. Squash that was nicked, left in a hot truck bed or picked oversize will give out sooner.
Winter squash is a different story. Butternut and similar types have hard rinds and keep for months. Summer squash has a thin, tender skin and a high water content, and it softens fast. Anyone who plans a cellar or a cool shelf for a summer squash glut is thinking of the wrong crop. The answer for a glut is freezing or preserving, and storage covers only the days between picking and cooking.
What do you do with more squash than you can eat in a week?
Plan for the surplus before it arrives. A couple of healthy plants can produce more than a household can eat fresh, especially in peak summer when the vines are setting fruit often. The practical routes are these:
- Freeze it, sliced, cubed or shredded, using a tested method. Blanching times and packing directions come from extension sources, so ask WVU Extension if you are unsure.
- Cook it into dishes that freeze well, such as soups, casseroles and baked goods made with shredded squash.
- Give it away. Neighbors, food pantries and church groups often welcome fresh produce, and the squash is at its best on the first day or two.
- Follow tested recipes for any pickling or canning, since squash is dense and safe processing times depend on the recipe.
The refrigerator is for the squash you will use soon. Everything else gets processed within a day or two of picking, while the fruit is still firm. A squash that has sat too long is already past its best, so it is better to freeze it fresh than to hold it and hope.
Harvest habits help with the glut itself. Picking small keeps each fruit tender and slows the pile-up of oversized squash with tough skin and large seeds. Smaller fruit also means the plant keeps setting new ones, so you spread the supply across weeks instead of getting one giant flush.
Where in the house that actually is
The refrigerator is the only place in an ordinary house that matches what Clemson describes. A heated room is too warm, since squash on the counter softens and shrivels within days. A garage swings with the weather, and in a state where Charleston sees about 16 days a year at 90°F or higher, a garage in July can run hot enough to ruin fruit. In late fall it can drop low enough to chill the squash and damage the skin.
A basement is cooler and steadier than a living room, which makes it fine for a day or two. It is not a substitute for the fridge. Dampness there encourages mold on any squash left out, and a basement that feels cool in October is often warm and humid in August.
The fridge has its own problem: a domestic unit can run colder than some crops tolerate, especially at the back wall or near the cooling vent. Squash pressed against that spot can get pitted or watery. The plastic bag Clemson recommends helps because it cuts moisture loss and softens the cold. Put the bag in the crisper drawer, away from the back wall, and give the fruit room so it does not get crushed.
Check the temperature of the crisper drawer before you trust it with a harvest, because a drawer that runs too cold or too warm costs you the squash you spent the summer growing. Check it again after a day or two, since a fridge that is opened often will drift. If the drawer reads very cold, move the bag to a shelf nearer the door. Then treat the one-week limit as a hard stop: if the squash has gone soft, slimy or sunken, compost it.
Common questions
How big should summer squash be when I pick it?
Pick it small. The skin should be glossy and tender enough that a thumbnail pierces it easily. Large squash have tougher skin and bigger seeds, and an oversized fruit on the vine slows the plant’s production of new ones. Check the plants every day or two in the peak of the season.
Can I store summer squash in a cool basement or garage?
Not for any length of time. Summer squash is meant for the refrigerator, in a plastic bag, for up to a week. A basement works for a day or two at most, and a garage swings too much with the weather. If you have more than you can eat in a week, freeze or preserve it using tested methods.
When does the summer squash season end in West Virginia?
Frost ends it. At Charleston, the first fall freeze usually arrives between October 18 and November 1, based on 1991-2020 normals. Higher elevations freeze earlier, so gardeners in the mountains may lose their plants weeks sooner. Pests or disease can also finish a planting before frost.
How much squash will one plant give me?
It varies with variety, weather, water and pests, and a healthy plant can outproduce a household’s appetite. Picking small and often keeps it producing. If you are growing for a small household, a couple of plants is plenty. Your county WVU Extension office can suggest quantities and varieties that suit your area.