When should I plant Retiisi in Zone 9b?

Direct sow Retiisi outdoors around Feb 3. Expect first harvest around Feb 28.

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 Retiisi in Zone 9b?

Yes. Retiisi needs 25 days to harvest. Zone 9b has a 250-day growing season, which is sufficient. You can plant up to 16 successions.

🥔

🥔 Growing Retiisi in Zone 9b

Zone 9b has warm winters and an extended growing season -- excellent for heat-loving crops like Retiisi. Viimeinen halla: Mar 10. Ensimmäinen halla: Nov 15.

Planting Calendar

Outdoor

Harvest

Feb 3Nov 15

Season: Mar 10 – Nov 15 (250 päivää) · Succession: plant every 2 weeks (up to 16x)

Vyöhyke9b

Viimeinen hallaMar 10

Ensimmäinen hallaNov 15

Kausi250 päivää

Sato25 päivää

AurinkoTäysi Aurinko

When to Plant Retiisi in Zone 9b

Sow Seeds Outdoors: Feb 3

Direct sow Retiisi seeds outdoors around Feb 3. Wait until soil temperature reaches 40F. Space plants at 16/m² (8cm välein).

Harvest: Feb 28

First harvest approximately Feb 28 (~25 päivää from planting). Continue harvesting until first frost (Nov 15).

Fall Planting: Oct 11

For a fall harvest, plant Retiisi around Oct 11 (5 weeks before first frost).

Kumppaniviljely

✅ Krassit✅ Pinaatti ✅ Salaatti✅ Herneet

❌ Iisoppi

Retiisi 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 Retiisi

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

Start Free Retiisi Growing Guide