When should I plant Ruohosipuli in Zone 1a?

Start Ruohosipuli seeds indoors around Mar 30. Transplant outdoors after May 11. Expect first harvest around Jul 10.

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 Ruohosipuli in Zone 1a?

Yes. Ruohosipuli needs 60 days to harvest. Zone 1a has a 95-day growing season, which is sufficient.

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🌱 Growing Ruohosipuli in Zone 1a

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

Planting Calendar

Indoor

Outdoor

Harvest

Mar 30Aug 28

Season: May 25 – Aug 28 (95 päivää)

Vyöhyke1a

Viimeinen hallaMay 25

Ensimmäinen hallaAug 28

Kausi95 päivää

Sato60 päivää

AurinkoTäysi Aurinko

When to Plant Ruohosipuli in Zone 1a

Start Seeds Indoors: Mar 30

Start Ruohosipuli seeds indoors around Mar 30 (8 viikkoa ennen viimeistä hallaa). Optimal germination temperature: 65F. Germinates in 7-14 days.

Transplant Outdoors: May 11

Transplant Ruohosipuli seedlings outdoors after May 11. Wait until soil temperature reaches 45F. Space plants at 16/m² (8cm välein). Harden off plants for a week before moving outside.

Harvest: Jul 10

First harvest approximately Jul 10 (~60 päivää from transplant). Continue harvesting until first frost (Aug 28). Ruohosipuli can overwinter in mild climates for continued harvest.

Kumppaniviljely

✅ Porkkanat✅ Tomaatit✅ Grapes✅ Ruusut

❌ Pavut❌ Herneet

Ruohosipuli 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 Ruohosipuli

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

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