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.

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.

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.

Outdoor

Harvest

Jan 16Dec 1

Season: Feb 20 – Dec 1 (284 days) · Succession: plant every 2 weeks (up to 16x)

Zone10a

Last FrostFeb 20

First FrostDec 1

Season Length284 days

Days to Harvest60

SunFull Sun

Frost ToleranceLight

Spacing4/sqft (6" apart)

Direct sow Black Radish seeds outdoors around Jan 16. Soil temperature should be at least 40°F. Space at 4/sqft (6" apart).

First harvest approximately Mar 17 (~60 days from planting). Continue harvesting until first frost (Dec 1).

For a fall harvest, plant Black Radish around Oct 27 (5 weeks before first frost).

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