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🟡 Growing Squash, Grey Zucchini in Zone 9a
Zone 9a has warm winters and an extended growing season — excellent for heat-loving crops like Squash, Grey Zucchini. Last frost: Mar 20. First frost: Nov 12.
Planting Calendar
Season: Mar 20 – Nov 12 (237 days) · Succession: plant every 3 weeks (up to 8x)
When to Plant Squash, Grey Zucchini in Zone 9a
Start Seeds Indoors: Feb 20
Start Squash, Grey Zucchini seeds indoors around Feb 20 (4 weeks before last frost). Optimal germination temperature: 85°F. Germinates in 4–10 days.
Transplant Outdoors: Apr 3
Transplant Squash, Grey Zucchini seedlings outdoors after Apr 3. Wait until soil temperature reaches 65°F. Space plants at 1/sqft (12" apart). Harden off plants for a week before moving outside.
Harvest: May 8
First harvest approximately May 8 (~35 days from transplant). Continue harvesting until first frost (Nov 12).
Fall Planting: Sep 3
For a fall harvest, plant Squash, Grey Zucchini around Sep 3 (10 weeks before first frost).
Squash, Grey Zucchini in Other Zones
1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13bPlan Your Squash, Grey Zucchini Garden
Track Squash, Grey Zucchini from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Squash, Grey Zucchini Growing Guide