When should I plant Black Radish in Zone 9b?

Direct sow Black Radish outdoors around Feb 3. Expect first harvest around Apr 4.

What is the last frost date for Zone 9b?

The average last spring frost date for Zone 9b is Mar 10. The first fall frost averages Nov 15, giving a 250-day growing season.

Can I grow Black Radish in Zone 9b?

Yes. Black Radish needs 60 days to harvest. Zone 9b has a 250-day growing season, which is sufficient. You can plant up to 13 successions.

Growing Black Radish in Zone 9b

Zone 9b has warm winters and an extended growing season -- excellent for heat-loving crops like Black Radish. Darrera gelada: Mar 10. Primera gelada: Nov 15.

Planting Calendar

Outdoor

Harvest

Feb 3Nov 15

Season: Mar 10 – Nov 15 (250 dies) · Succession: plant every 2 weeks (up to 13x)

Zona9b

Darrera geladaMar 10

Primera geladaNov 15

Temporada250 dies

Collita60 dies

SolSol Ple

When to Plant Black Radish in Zone 9b

Sow Seeds Outdoors: Feb 3

Direct sow Black Radish seeds outdoors around Feb 3. Wait until soil temperature reaches 40F. Space plants at 4/m² (15cm espaiat).

Harvest: Apr 4

First harvest approximately Apr 4 (~60 dies from planting). Continue harvesting until first frost (Nov 15).

Fall Planting: Oct 11

For a fall harvest, plant Black Radish around Oct 11 (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 13b

Plan Your Garden Black Radish

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

Start Free Black Radish Growing Guide