Growing Black Radish in Zone 8a
Zone 8a has warm winters and an extended growing season — excellent for heat-loving crops like Black Radish. Last frost: Apr 5. First frost: Oct 28.
Planting Calendar
Season: Apr 5 – Oct 28 (206 days) · Succession: plant every 2 weeks (up to 10x)
When to Plant Black Radish in Zone 8a
Sow Seeds Outdoors: Mar 1
Direct sow Black Radish seeds outdoors around Mar 1. Soil temperature should be at least 40°F. Space at 4/sqft (6" apart).
Harvest: Apr 30
First harvest approximately Apr 30 (~60 days from planting). Continue harvesting until first frost (Oct 28).
Fall Planting: Sep 23
For a fall harvest, plant Black Radish around Sep 23 (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 8a?
Direct sow Black Radish outdoors around Mar 1. Harvest around Apr 30.
What is the last frost date for Zone 8a?
The average last spring frost date for Zone 8a is Apr 5. The first fall frost averages Oct 28, giving a 206-day growing season.
Can I grow Black Radish in Zone 8a?
Yes. Black Radish needs 60 days to harvest. Zone 8a has a 206-day growing season, which is sufficient. You can plant up to 10 successions.
What is the best month to plant Black Radish in Zone 8a?
The best time to plant Black Radish in Zone 8a is around Mar 1, 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 8a, expect your first harvest around Apr 30.
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