Black Radish illustration

Growing Black Radish in Zone 6b

Zone 6b has mild winters and a long growing season — good conditions for Black Radish. Last frost: Apr 15. First frost: Oct 22.

Planting Calendar

Outdoor
Harvest
Mar 11Oct 22

Season: Apr 15 – Oct 22 (190 days) · Succession: plant every 2 weeks (up to 9x)

Zone6b
Last FrostApr 15
First FrostOct 22
Season Length190 days
Days to Harvest60
SunFull Sun
Frost ToleranceLight
Spacing4/sqft (6" apart)

When to Plant Black Radish in Zone 6b

Sow Seeds Outdoors: Mar 11

Direct sow Black Radish seeds outdoors around Mar 11. Soil temperature should be at least 40°F. Space at 4/sqft (6" apart).

Harvest: May 10

First harvest approximately May 10 (~60 days from planting). Continue harvesting until first frost (Oct 22).

Fall Planting: Sep 17

For a fall harvest, plant Black Radish around Sep 17 (5 weeks before first frost).

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