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🥬 Growing Swiss Chard in Zone 8b

Zone 8b has warm winters and an extended growing season — excellent for heat-loving crops like Swiss Chard. Last frost: Mar 22. First frost: Nov 10.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 22Nov 10

Season: Mar 22 – Nov 10 (233 days)

Zone8b

Last FrostMar 22

First FrostNov 10

Season Length233 days

Days to Harvest55

SunPart Sun / Part Shade

Frost ToleranceLight

Spacing4/sqft (6" apart)

When to Plant Swiss Chard in Zone 8b

Start Seeds Indoors: Feb 22

Start Swiss Chard seeds indoors around Feb 22 (4 weeks before last frost). Optimal germination temperature: 75°F. Germinates in 7–14 days.

Transplant Outdoors: Mar 8

Transplant Swiss Chard seedlings outdoors after Mar 8. Wait until soil temperature reaches 50°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Apr 17

First harvest approximately Apr 17 (~40 days from transplant). Continue harvesting until first frost (Nov 10).

Fall Planting: Sep 15

For a fall harvest, plant Swiss Chard around Sep 15 (8 weeks before first frost).

Swiss Chard 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 Swiss Chard in Zone 8b?

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

What is the last frost date for Zone 8b?

The average last spring frost date for Zone 8b is Mar 22. The first fall frost averages Nov 10, giving a 233-day growing season.

Can I grow Swiss Chard in Zone 8b?

Yes. Swiss Chard needs 55 days to harvest. Zone 8b has a 233-day growing season, which is sufficient.

What is the best month to plant Swiss Chard in Zone 8b?

The best time to start Swiss Chard in Zone 8b is Feb. Begin seeds indoors around Feb 22, then transplant outdoors after the last frost date of Mar 22.

How long does Swiss Chard take to harvest?

Swiss Chard takes approximately 55 days from planting to harvest. In Zone 8b, expect your first harvest around Apr 17.

Plan Your Swiss Chard Garden

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

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