Evan-Amos / Public domain
garden
Zucchini
Cucurbita pepo var. cylindrica
Edible
Edible Partsfruit, flowers
Overview
The most prolific vegetable in the garden — a running joke among gardeners is that the only time people lock their cars in summer is to prevent neighbors from leaving zucchini on the back seat. This summer squash can produce a harvestable fruit every 1-2 days at peak season. Beyond the standard green, varieties include golden, striped, and round types, and the large orange flowers are a delicacy.
Growing Conditions
LightFull Sun
MoistureModerate
Hardiness Zones3 — 11
Height0.6m
Spread1.2m
Growth HabitVine
LifespanAnnual
Pollinator Valuemoderate
Companion Planting & Soil
Good Companions
Avoid Planting Near
Soil pH6 — 7.5
Soil TypeRich, well-drained, loamy soil with plenty of compost
Planting Calendar
When to sow, transplant, and harvest by growing zone.
| Zone | Action | Months | Notes |
|---|---|---|---|
| Cold (1-2) | Direct Sow | Jun — Jun | Direct sow after last frost; 1" deep |
| Cold (1-2) | Harvest | Jul — Sep | Harvest at 6-8" for best flavor; check daily |
| Cool (3-4) | Direct Sow | May — Jun | Direct sow after frost danger |
| Cool (3-4) | Harvest | Jul — Sep | Harvest every 1-2 days at peak |
| Moderate (5-7) | Direct Sow | Apr — Jun | Direct sow after last frost |
| Moderate (5-7) | Harvest | Jun — Oct | Very prolific; harvest small |
| Warm (8-9) | Direct Sow | Mar — Apr | Spring sowing |
| Warm (8-9) | Direct Sow | Aug — Sep | Fall sowing |
| Warm (8-9) | Harvest | May — Jun | Spring harvest |
| Hot (10+) | Direct Sow | Feb — Mar | Early spring; also Sep for fall |
| Hot (10+) | Harvest | Apr — May | Spring harvest |
Uses
Culinary
- Grilled, sautéed, or roasted as a side dish
- Spiralized into zoodles as a pasta substitute
- Flowers stuffed with ricotta and fried — an Italian delicacy
Medicinal
- Low-calorie, high-water-content vegetable
- Good source of vitamin A, vitamin C, and manganese
- Potassium-rich for heart and muscle health
Other Uses
- Enormous flowers attract pollinators
- Most productive vegetable per square foot of garden space
Safety Notes
Extremely bitter zucchini may contain toxic cucurbitacins; discard if bitter.
