When should I plant Purple Kohlrabi in Zone 13a?

Start Purple Kohlrabi seeds indoors around Nov 20. Transplant outdoors after Dec 11. Expect first harvest around Jan 20.

What is the last frost date for Zone 13a?

The average last spring frost date for Zone 13a is Jan 1. The first fall frost averages Dec 31, giving a 364-day growing season.

Can I grow Purple Kohlrabi in Zone 13a?

Yes. Purple Kohlrabi needs 55 days to harvest. Zone 13a has a 364-day growing season, which is sufficient. You can plant up to 14 successions.

Growing Purple Kohlrabi in Zone 13a

Zone 13a has a year-round growing season. Purple Kohlrabi can be planted almost any time with proper planning. Last frost: Jan 1. First frost: Dec 31.

Planting Calendar

Indoor

Outdoor

Harvest

Nov 20Dec 31

Season: Jan 1 – Dec 31 (364 days) · Succession: plant every 3 weeks (up to 14x)

Zone13a

Last FrostJan 1

First FrostDec 31

Season Length364 days

Days to Harvest55

SunFull Sun

Frost ToleranceModerate

Spacing4/sqft (6" apart)

When to Plant Purple Kohlrabi in Zone 13a

Start Seeds Indoors: Nov 20

Start Purple Kohlrabi seeds indoors around Nov 20 (6 weeks before last frost). Optimal germination temperature: 65°F. Germinates in 5–10 days.

Transplant Outdoors: Dec 11

Transplant Purple Kohlrabi seedlings outdoors after Dec 11. Wait until soil temperature reaches 45°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Jan 20

First harvest approximately Jan 20 (~40 days from transplant). Continue harvesting until first frost (Dec 31).

Fall Planting: Nov 5

For a fall harvest, plant Purple Kohlrabi around Nov 5 (8 weeks before first frost).

Purple Kohlrabi 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

Plan Your Purple Kohlrabi Garden

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

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