When should I plant Retiisi in Zone 1a?

Direct sow Retiisi outdoors around Apr 20. Expect first harvest around May 15.

What is the last frost date for Zone 1a?

The average last spring frost date for Zone 1a is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.

Can I grow Retiisi in Zone 1a?

Yes. Retiisi needs 25 days to harvest. Zone 1a has a 95-day growing season, which is sufficient. You can plant up to 5 successions.

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🥔 Growing Retiisi in Zone 1a

Zone 1a has harsh winters and a short growing season. Start Retiisi early indoors to maximize your harvest window. Viimeinen halla: May 25. Ensimmäinen halla: Aug 28.

Planting Calendar

Outdoor

Harvest

Apr 20Aug 28

Season: May 25 – Aug 28 (95 päivää) · Succession: plant every 2 weeks (up to 5x)

Vyöhyke1a

Viimeinen hallaMay 25

Ensimmäinen hallaAug 28

Kausi95 päivää

Sato25 päivää

AurinkoTäysi Aurinko

When to Plant Retiisi in Zone 1a

Sow Seeds Outdoors: Apr 20

Direct sow Retiisi seeds outdoors around Apr 20. Wait until soil temperature reaches 40F. Space plants at 16/m² (8cm välein).

Harvest: May 15

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

Fall Planting: Jul 24

For a fall harvest, plant Retiisi around Jul 24 (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.

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