When should I plant کلم in Zone 9b?

Start کلم seeds indoors around Jan 27. Transplant outdoors after Feb 10. Expect first harvest around Mar 27.

What is the last frost date for Zone 9b?

The average last spring frost date for Zone 9b is Mar 10. The first fall frost averages Nov 15, giving a 250-day growing season.

Can I grow کلم in Zone 9b?

Yes. کلم needs 60 days to harvest. Zone 9b has a 250-day growing season, which is sufficient.

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🥬 Growing کلم in Zone 9b

Zone 9b has warm winters and an extended growing season -- excellent for heat-loving crops like کلم. آخرین یخبندان: Mar 10. اولین یخبندان: Nov 15.

Planting Calendar

Indoor

Outdoor

Harvest

Jan 27Nov 15

Season: Mar 10 – Nov 15 (250 روز)

منطقه9b

آخرین یخبندانMar 10

اولین یخبندانNov 15

فصل250 روز

برداشت60 روز

آفتابنیمه سایه

When to Plant کلم in Zone 9b

Start Seeds Indoors: Jan 27

Start کلم seeds indoors around Jan 27 (6 هفته قبل از آخرین سرمازدگی). Optimal germination temperature: 65F. Germinates in 5-10 days.

Transplant Outdoors: Feb 10

Transplant کلم seedlings outdoors after Feb 10. Wait until soil temperature reaches 40F. Space plants at 1/متر² (30cm فاصله). Harden off plants for a week before moving outside.

Harvest: Mar 27

First harvest approximately Mar 27 (~45 روز from transplant). Continue harvesting until first frost (Nov 15). کلم can overwinter in mild climates for continued harvest.

Fall Planting: Sep 20

For a fall harvest, plant کلم around Sep 20 (8 weeks before first frost).

کاشت همراه

✅ مریم گلی ✅ شوید✅ پیازها✅ چغندرها✅ سیب‌زمینی‌ها

❌ توت فرنگی‌ها

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

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