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

Start Squash, Grey Zucchini seeds indoors around Mar 31. Transplant outdoors after May 12. Expect first harvest around Jun 16.

What is the last frost date for Zone 6a?

The average last spring frost date for Zone 6a is Apr 28. The first fall frost averages Oct 8, giving a 163-day growing season.

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

Yes. Squash, Grey Zucchini needs 50 days to harvest. Zone 6a has a 163-day growing season, which is sufficient. You can plant up to 5 successions.

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🟡 Growing Squash, Grey Zucchini in Zone 6a

Zone 6a has mild winters and a long growing season — good conditions for Squash, Grey Zucchini. Last frost: Apr 28. First frost: Oct 8.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 31Oct 8

Season: Apr 28 – Oct 8 (163 days) · Succession: plant every 3 weeks (up to 5x)

Zone6a

Last FrostApr 28

First FrostOct 8

Season Length163 days

Days to Harvest50

SunFull Sun

Frost ToleranceNone

Spacing1/sqft (12" apart)

When to Plant Squash, Grey Zucchini in Zone 6a

Start Seeds Indoors: Mar 31

Start Squash, Grey Zucchini seeds indoors around Mar 31 (4 weeks before last frost). Optimal germination temperature: 85°F. Germinates in 4–10 days.

Transplant Outdoors: May 12

Transplant Squash, Grey Zucchini seedlings outdoors after May 12. 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 16

First harvest approximately Jun 16 (~35 days from transplant). Continue harvesting until first frost (Oct 8).

Fall Planting: Jul 30

For a fall harvest, plant Squash, Grey Zucchini around Jul 30 (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