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🍃 Growing Spinach in Zone 8a

Zone 8a has warm winters and an extended growing season — excellent for heat-loving crops like Spinach. Last frost: Apr 5. First frost: Oct 28.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 22Oct 28

Season: Apr 5 – Oct 28 (206 days) · Succession: plant every 2 weeks (up to 11x)

Zone8a

Last FrostApr 5

First FrostOct 28

Season Length206 days

Days to Harvest40

SunPart Sun / Part Shade

Frost ToleranceHeavy

Spacing9/sqft (4" apart)

When to Plant Spinach in Zone 8a

Start Seeds Indoors: Feb 22

Start Spinach seeds indoors around Feb 22 (6 weeks before last frost). Optimal germination temperature: 60°F. Germinates in 6–14 days.

Transplant Outdoors: Mar 8

Transplant Spinach seedlings outdoors after Mar 8. Wait until soil temperature reaches 35°F. Space plants at 9/sqft (4" apart). Harden off plants for a week before moving outside.

Harvest: Apr 17

First harvest approximately Apr 17 (~40 days from planting). Continue harvesting until first frost (Oct 28). Spinach can overwinter in mild climates for continued harvest.

Fall Planting: Sep 16

For a fall harvest, plant Spinach around Sep 16 (6 weeks before first frost).

Companion Planting

✅ Cauliflower ✅ Cabbage✅ Beans✅ Strawberries

Spinach 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 13b

Frequently Asked Questions

When should I plant Spinach in Zone 8a?

Start Spinach seeds indoors around Feb 22. Transplant outdoors after Mar 8. Expect first harvest around Apr 17.

What is the last frost date for Zone 8a?

The average last spring frost date for Zone 8a is Apr 5. The first fall frost averages Oct 28, giving a 206-day growing season.

Can I grow Spinach in Zone 8a?

Yes. Spinach needs 40 days to harvest. Zone 8a has a 206-day growing season, which is sufficient. You can plant up to 11 successions.

What is the best month to plant Spinach in Zone 8a?

The best time to start Spinach in Zone 8a is Feb. Begin seeds indoors around Feb 22, then transplant outdoors after the last frost date of Apr 5.

What companion plants grow well with Spinach?

Good companion plants for Spinach include Cauliflower, Cabbage, Beans, Strawberries.

How long does Spinach take to harvest?

Spinach takes approximately 40 days from planting to harvest. In Zone 8a, expect your first harvest around Apr 17.

Plan Your Spinach Garden

Track Spinach from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

Start Free Spinach Growing Guide