Growing Black Radish in Zone 10a
Zone 10a has a year-round growing season. Black Radish can be planted almost any time with proper planning. Last frost: Feb 20. First frost: Dec 1.
Planting Calendar
Season: Feb 20 – Dec 1 (284 days) · Succession: plant every 2 weeks (up to 16x)
When to Plant Black Radish in Zone 10a
Sow Seeds Outdoors: Jan 16
Direct sow Black Radish seeds outdoors around Jan 16. Soil temperature should be at least 40°F. Space at 4/sqft (6" apart).
Harvest: Mar 17
First harvest approximately Mar 17 (~60 days from planting). Continue harvesting until first frost (Dec 1).
Fall Planting: Oct 27
For a fall harvest, plant Black Radish around Oct 27 (5 weeks before first frost).
Black Radish 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 Black Radish in Zone 10a?
Direct sow Black Radish outdoors around Jan 16. Harvest around Mar 17.
What is the last frost date for Zone 10a?
The average last spring frost date for Zone 10a is Feb 20. The first fall frost averages Dec 1, giving a 284-day growing season.
Can I grow Black Radish in Zone 10a?
Yes. Black Radish needs 60 days to harvest. Zone 10a has a 284-day growing season, which is sufficient. You can plant up to 16 successions.
What is the best month to plant Black Radish in Zone 10a?
The best time to plant Black Radish in Zone 10a is around Jan 16, when soil temperatures are suitable and frost risk has passed.
How long does Black Radish take to harvest?
Black Radish takes approximately 60 days from planting to harvest. In Zone 10a, expect your first harvest around Mar 17.
Plan Your Black Radish Garden
Track Black Radish from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Black Radish Growing Guide