When should I plant Black Radish in Zone 4b?

Direct sow Black Radish outdoors around Mar 27. Expect first harvest around May 26.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Yes. Black Radish needs 60 days to harvest. Zone 4b has a 157-day growing season, which is sufficient. You can plant up to 6 successions.

Zone 4b has cold winters and a moderate growing season. Timing is key for Black Radish in this zone. Laatste vorst: May 1. Eerste vorst: Oct 5.

Outdoor

Harvest

Mar 27Oct 5

Season: May 1 – Oct 5 (157 dagen) · Succession: plant every 2 weeks (up to 6x)

Zone4b

Laatste vorstMay 1

Eerste vorstOct 5

Seizoen157 dagen

Oogst60 dagen

ZonVolle Zon

Direct sow Black Radish seeds outdoors around Mar 27. Wait until soil temperature reaches 40F. Space plants at 4/m² (15cm afstand).

First harvest approximately May 26 (~60 dagen from planting). Continue harvesting until first frost (Oct 5).

For a fall harvest, plant Black Radish around Aug 31 (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.