Growing Purple Kohlrabi in Zone 13b
Zone 13b 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
Season: Jan 1 – Dec 31 (364 days) · Succession: plant every 3 weeks (up to 14x)
When to Plant Purple Kohlrabi in Zone 13b
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 13bFrequently Asked Questions
When should I plant Purple Kohlrabi in Zone 13b?
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 13b?
The average last spring frost date for Zone 13b is Jan 1. The first fall frost averages Dec 31, giving a 364-day growing season.
Can I grow Purple Kohlrabi in Zone 13b?
Yes. Purple Kohlrabi needs 55 days to harvest. Zone 13b has a 364-day growing season, which is sufficient. You can plant up to 14 successions.
What is the best month to plant Purple Kohlrabi in Zone 13b?
The best time to start Purple Kohlrabi in Zone 13b is Nov. Begin seeds indoors around Nov 20, then transplant outdoors after the last frost date of Jan 1.
How long does Purple Kohlrabi take to harvest?
Purple Kohlrabi takes approximately 55 days from planting to harvest. In Zone 13b, expect your first harvest around Jan 20.
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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