When should I plant Swiss Chard in Zone 4a?

Start Swiss Chard seeds indoors around Apr 7. Transplant outdoors after Apr 21. Expect first harvest around May 31.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.

Can I grow Swiss Chard in Zone 4a?

Yes. Swiss Chard needs 55 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

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🥬 Growing Swiss Chard in Zone 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Swiss Chard in this zone. Fros terakhir: May 5. Fros pertama: Oct 1.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 7Oct 1

Season: May 5 – Oct 1 (149 hari)

Zon4a

Fros terakhirMay 5

Fros pertamaOct 1

Musim149 hari

Tuaian55 hari

MatahariSeparuh Teduh

When to Plant Swiss Chard in Zone 4a

Start Seeds Indoors: Apr 7

Start Swiss Chard seeds indoors around Apr 7 (4 minggu sebelum fros terakhir). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: Apr 21

Transplant Swiss Chard seedlings outdoors after Apr 21. Wait until soil temperature reaches 50F. Space plants at 4/m² (15cm jarak). Harden off plants for a week before moving outside.

Harvest: May 31

First harvest approximately May 31 (~40 hari from transplant). Continue harvesting until first frost (Oct 1).

Fall Planting: Aug 6

For a fall harvest, plant Swiss Chard around Aug 6 (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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