When should I plant Swiss Chard in Zone 7b?

Start Swiss Chard seeds indoors around Mar 13. Transplant outdoors after Mar 27. Expect first harvest around May 6.

What is the last frost date for Zone 7b?

The average last spring frost date for Zone 7b is Apr 10. The first fall frost averages Nov 7, giving a 211-day growing season.

Can I grow Swiss Chard in Zone 7b?

Yes. Swiss Chard needs 55 days to harvest. Zone 7b has a 211-day growing season, which is sufficient.

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🥬 Growing Swiss Chard in Zone 7b

Zone 7b has mild winters and a long growing season — good conditions for Swiss Chard. Last frost: Apr 10. First frost: Nov 7.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 13Nov 7

Season: Apr 10 – Nov 7 (211 days)

Zone7b

Last FrostApr 10

First FrostNov 7

Season Length211 days

Days to Harvest55

SunPart Sun / Part Shade

Frost ToleranceLight

Spacing4/sqft (6" apart)

When to Plant Swiss Chard in Zone 7b

Start Seeds Indoors: Mar 13

Start Swiss Chard seeds indoors around Mar 13 (4 weeks before last frost). Optimal germination temperature: 75°F. Germinates in 7–14 days.

Transplant Outdoors: Mar 27

Transplant Swiss Chard seedlings outdoors after Mar 27. Wait until soil temperature reaches 50°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: May 6

First harvest approximately May 6 (~40 days from transplant). Continue harvesting until first frost (Nov 7).

Fall Planting: Sep 12

For a fall harvest, plant Swiss Chard around Sep 12 (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

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