Summer Squash
Also known as: Yellow squash · Crookneck · Patty pan · Scallop squash · Cucurbita pepo
5 types of summer squash
Bennings Green Tint
52 daysPale green heirloom patty pan, mild and tender.
Early Prolific Straightneck
50 daysSmooth yellow AAS winner, heavy producer for a small bush.
Sunburst Patty Pan
52 daysBright yellow scalloped 'flying saucer' fruit. Delicious grilled whole when tiny.
Yellow Crookneck
55 daysClassic warty-skinned Southern heirloom, buttery flavor.
Zephyr F1
54 daysTwo-tone yellow-and-green straightneck. Nutty, market favorite.
When & where
Germination
Spacing & depth
How to plant
Sow 3 seeds to a hill on warm soil; thin to the strongest. Bush plants set fruit within weeks. Pick fruits small (4–6 in) and often — leaving one giant on the plant shuts down flowering.
Grower's tip
Different species from zucchini in some cases but grown identically. Rotate away from all cucurbits to slow squash-bug and vine-borer pressure.
Soil preferences
Deep, rich, well-drained loam.
6.0–6.8
2–3 in of compost worked into the bed each spring; side-dress heavy feeders (tomato, squash, brassica) monthly with balanced organic fertilizer.
Watering
1–2 in per week — steady is more important than heavy.
Drip or soaker at the base. Mulch 2–3 in to hold moisture and suppress weeds.
Overwatered: yellowing lower leaves, cracked fruit, blossom-end rot from calcium disruption. Underwatered: wilting mid-day, bitter or misshapen fruit, blossom drop.
Prefers top-watering — Top-water at the soil line with drip. Powdery mildew loves wet leaves — keep water off the vines.
Temperature tolerance
70–85°F (21–29°C) for warm-season; 60–75°F (15–24°C) for cool-season
55–65°F (13–18°C)
Warm-season crops (tomato, pepper, squash, cucumber, bean) are frost-tender. Cool-season (brassica, pea, spinach, radish) tolerate light frost, some (kale, spinach) sweeten after one.
Container growing
Possible with the right cultivar
5+ gal (19 L) for tomato/pepper/eggplant; 3 gal for compact bush varieties; 8+ in deep for greens
Look for 'patio', 'bush', or 'compact' varieties. Water containers daily in heat — they dry out fast.
Succession planting
Bush beans, salad greens, radishes, carrots: sow every 2–3 weeks. Long-season crops (tomato, pepper): one sowing per season.
Detailed harvesting
Pick fruiting crops young and often — over-mature fruit signals the plant to stop producing. Cut, don't yank, with pruners to protect the stem.
Post-harvest storage & preservation
Cure winter squash and onions in a warm airy spot 2 weeks, then store cool. Freeze most vegetables blanched. Ferment or can surplus.
Culinary, medicinal & other uses
Fresh eating, cooking, preserving. Save the biggest and best specimens as seed stock, not for the table.
Medicinal or traditional uses are shared for interest only — this is not medical advice. Consult a qualified professional before using any plant medicinally.
Seed saving
Depends on species — tomato/pepper/bean/pea are self-pollinating; squash/cucumber/melon/brassica cross via insects.
Self-pollinators need little isolation (10 ft). Cross-pollinators need 1/4 mile, hand-pollination, or blossom bags.
Let one healthy plant fully ripen fruit or dry pods; ferment wet-seed fruits (tomato, cucumber, melon) 3 days to strip pulp before drying.
Your zone's planting calendar
Pick your USDA hardiness zone and we'll estimate the key dates for summer squash in your area. These are regional averages — always check your own last-frost forecast before sowing.
From your kitchen — grow summer squash from what you already have
Squash and zucchini cross freely — seed only saves true if you grew one variety, or hand-pollinated. Let the fruit go hard and giant on the vine.
- 1Leave one 'baseball bat' fruit on the plant until the rind is fingernail-hard, then cure indoors another 3–4 weeks.
- 2Split it open, scoop seeds, rub off pulp in a colander under running water.
- 3Dry the plumpest seeds on a plate 2–3 weeks — they need to bend, not snap, when done.
- 4Store in an envelope. Sow after last frost.
Storage: 6+ years dry.
My Summer Squash notes
Summer Squash seeds on hand
Track packets and loose seeds you already have. Private to your account.
Par level — leave at 0 for no alert. Anything below par shows on Seed Starting and your shopping list.
Order more seeds
Running low? Reorder from one of these seed stores.
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