Quick Facts
🌡️ Season
Warm-Season
☀️ Sun Needs
Full Sun (6+ hrs)
💧 Water
Moderate
📐 Spacing
36 inches apart
🕳️ Planting Depth
1 inch deep
📅 Days to Harvest
45–65 days
🧪 Soil pH
6–7.5
🌡️ Min Soil Temp
60°F
🏠 Start Indoors
3 weeks before last frost
🌱 Direct Sow
Yes
🔥 Heat Tolerance
Moderate
❄️ Cold Tolerance
None
When to Plant Zucchini by Zone
Planting dates vary by USDA hardiness zone. Find your zone at the Smart Planner.
| Zone | Start Indoors | Direct Sow | Transplant | Harvest |
|---|---|---|---|---|
| Zones 3–4 (Cold) | Apr, May | May, Jun | May, Jun | Jul, Aug, Sep |
| Zones 5–6 (Cool) | Apr | May | May | Jun, Jul, Aug, Sep |
| Zones 7–8 (Moderate) | Mar | Mar, Apr | Apr | May, Jun, Jul, Aug |
| Zones 9–10 (Warm) | Feb | Feb, Mar | Mar | Apr, May, Jun, Jul |
| Zones 11–13 (Tropical) | Jan | Jan, Feb | Feb | Mar, Apr, May, Jun |
Recommended Varieties
Black Beauty
Classic dark green, heavy producer
Costata Romanesco
Italian heirloom with nutty flavor
🌿 Companion Planting
Plant With
🌽 corn🌱 beans🔴 radish🌼 marigold
Keep Away From
✗ potato
🗺️ Growing Zones
12345678910111213
Highlighted zones are suitable for growing zucchini.
🛒 Shop Zucchini Seeds
Shop on Amazon →As an Amazon Associate and Walmart affiliate, we earn from qualifying purchases. Disclosure