When should I plant Black Radish in Zone 5b?

Direct sow Black Radish outdoors around Mar 24. Harvest around May 23.

What is the last frost date for Zone 5b?

The average last spring frost date for Zone 5b is Apr 28. The first fall frost averages Oct 8, giving a 163-day growing season.

Yes. Black Radish needs 60 days to harvest. Zone 5b has a 163-day growing season, which is sufficient. You can plant up to 7 successions.

Zone 5b has cold winters and a moderate growing season. Timing is key for Black Radish in this zone. Last frost: Apr 28. First frost: Oct 8.

Outdoor

Harvest

Mar 24Oct 8

Season: Apr 28 – Oct 8 (163 days) · Succession: plant every 2 weeks (up to 7x)

Zone5b

Last FrostApr 28

First FrostOct 8

Season Length163 days

Days to Harvest60

SunFull Sun

Frost ToleranceLight

Spacing4/sqft (6" apart)

Direct sow Black Radish seeds outdoors around Mar 24. Soil temperature should be at least 40°F. Space at 4/sqft (6" apart).

First harvest approximately May 23 (~60 days from planting). Continue harvesting until first frost (Oct 8).

For a fall harvest, plant Black Radish around Sep 3 (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.