Why do my squash flowers fall off without fruit?

Squash open male flowers first, sometimes for a week, before female flowers (the ones with a tiny squash behind them) arrive — so early flower drop is normal. Fruit that forms then shrivels at the tip signals poor pollination; hand-pollinate if bees are scarce.

How many zucchini plants do I need?

One or two. A single healthy plant out-produces what most households eat, so two usually covers a family with extra to give away. Crowding more together just traps humid air and invites disease.

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How to Grow Zucchini & Summer Squash (and Survive the Glut)

GardenDraft Team · July 21, 2026 · 6 min read

Part of: Garden Planning Guides · How to Grow Vegetables — Crop Guides A–Z

There's a reason gardeners joke about leaving zucchinis on porches. Summer squash grows fast, sets heavily, and usually gives you more fruit than you expected. The real challenge is keeping up with the harvest.

One or two plants is plenty

Take the yield seriously when you plan. A single healthy summer squash plant can produce more than a small household eats, so two plants usually covers a family with extra to give away. They're big plants, too, so give each one 2 to 3 feet of room. Crowding them only traps humid air and invites disease.

Warm soil, full sun, rich ground

Squash are warm-season plants with big appetites. Sow seed directly once soil is past 65°F and frost is well behind you, in full sun and soil enriched with compost. They grow fast and feed heavily, so a bed prepared with plenty of organic matter (see preparing garden soil) pays off in weeks. Direct-sowing is easiest since squash, like their cucumber relatives, dislike having their roots disturbed.

The flower thing is normal

New squash growers panic when the first flush of flowers falls off without fruit. Don't. Squash plants open male flowers first (sometimes for a week or more) before female flowers (the ones with a tiny squash behind them) arrive, and then bees move pollen between them. Poor pollination shows up as fruit that starts to form, then shrivels and rots at the tip. If bees are scarce, you can hand-pollinate with a small brush in the morning.

Only the female flower can become a squash — and only if pollen reaches it from a male flower.

Pick zucchini small, pick often

The single best habit: harvest young. A zucchini is at its best at 6 to 8 inches; left longer it turns into a watery, seedy baseball bat, and (more importantly) a maturing fruit signals the plant to slow down. Pick every day or two at peak and the plant keeps cranking. Patrol for squash bugs and the vine borers that can fell a plant from the inside, and watch for the late-summer powdery mildew that eventually ends the run. Time your sowing on the planting calendar. Consider a second planting in midsummer to replace plants as mildew takes the first.

Frequently asked questions

Why do my squash flowers fall off without fruit?: Squash open male flowers first, sometimes for a week, before female flowers (the ones with a tiny squash behind them) arrive — so early flower drop is normal. Fruit that forms then shrivels at the tip signals poor pollination; hand-pollinate if bees are scarce.
How many zucchini plants do I need?: One or two. A single healthy plant out-produces what most households eat, so two usually covers a family with extra to give away. Crowding more together just traps humid air and invites disease.