When should I plant Retiisi in Zone 4b?

Direct sow Retiisi outdoors around Mar 27. Expect first harvest around Apr 21.

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. Retiisi needs 25 days to harvest. Zone 4b has a 157-day growing season, which is sufficient. You can plant up to 9 successions.

🥔

Zone 4b has cold winters and a moderate growing season. Timing is key for Retiisi in this zone. Viimeinen halla: May 1. Ensimmäinen halla: Oct 5.

Outdoor

Harvest

Mar 27Oct 5

Season: May 1 – Oct 5 (157 päivää) · Succession: plant every 2 weeks (up to 9x)

Vyöhyke4b

Viimeinen hallaMay 1

Ensimmäinen hallaOct 5

Kausi157 päivää

Sato25 päivää

AurinkoTäysi Aurinko

Direct sow Retiisi seeds outdoors around Mar 27. Wait until soil temperature reaches 40F. Space plants at 16/m² (8cm välein).

First harvest approximately Apr 21 (~25 päivää from planting). Continue harvesting until first frost (Oct 5).

For a fall harvest, plant Retiisi around Aug 31 (5 weeks before first frost).

❌ Iisoppi

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

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