When should I plant Squash, Grey Zucchini in Zone 6b?

Start Squash, Grey Zucchini seeds indoors around Mar 18. Transplant outdoors after Apr 29. Expect first harvest around Jun 3.

What is the last frost date for Zone 6b?

The average last spring frost date for Zone 6b is Apr 15. The first fall frost averages Oct 22, giving a 190-day growing season.

Can I grow Squash, Grey Zucchini in Zone 6b?

Yes. Squash, Grey Zucchini needs 50 days to harvest. Zone 6b has a 190-day growing season, which is sufficient. You can plant up to 6 successions.

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🟡 Growing Squash, Grey Zucchini in Zone 6b

Zone 6b has mild winters and a long growing season — good conditions for Squash, Grey Zucchini. Last frost: Apr 15. First frost: Oct 22.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 18Oct 22

Season: Apr 15 – Oct 22 (190 days) · Succession: plant every 3 weeks (up to 6x)

Zone6b

Last FrostApr 15

First FrostOct 22

Season Length190 days

Days to Harvest50

SunFull Sun

Frost ToleranceNone

Spacing1/sqft (12" apart)

When to Plant Squash, Grey Zucchini in Zone 6b

Start Seeds Indoors: Mar 18

Start Squash, Grey Zucchini seeds indoors around Mar 18 (4 weeks before last frost). Optimal germination temperature: 85°F. Germinates in 4–10 days.

Transplant Outdoors: Apr 29

Transplant Squash, Grey Zucchini seedlings outdoors after Apr 29. Wait until soil temperature reaches 65°F. Space plants at 1/sqft (12" apart). Harden off plants for a week before moving outside.

Harvest: Jun 3

First harvest approximately Jun 3 (~35 days from transplant). Continue harvesting until first frost (Oct 22).

Fall Planting: Aug 13

For a fall harvest, plant Squash, Grey Zucchini around Aug 13 (10 weeks before first frost).

Squash, Grey Zucchini in Other Zones

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Plan 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