When should I plant Minttu in Zone 4a?

Start Minttu seeds indoors around Mar 10. Transplant outdoors after Apr 21. Expect first harvest around Jun 20.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.

Can I grow Minttu in Zone 4a?

Yes. Minttu needs 60 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

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🍃 Growing Minttu in Zone 4a

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

Planting Calendar

Indoor

Outdoor

Harvest

Mar 10Oct 1

Season: May 5 – Oct 1 (149 päivää)

Vyöhyke4a

Viimeinen hallaMay 5

Ensimmäinen hallaOct 1

Kausi149 päivää

Sato60 päivää

AurinkoPuolivarjo

When to Plant Minttu in Zone 4a

Start Seeds Indoors: Mar 10

Start Minttu seeds indoors around Mar 10 (8 viikkoa ennen viimeistä hallaa). Optimal germination temperature: 70F. Germinates in 10-16 days.

Transplant Outdoors: Apr 21

Transplant Minttu seedlings outdoors after Apr 21. Wait until soil temperature reaches 50F. Space plants at 1/m² (30cm välein). Harden off plants for a week before moving outside.

Harvest: Jun 20

First harvest approximately Jun 20 (~60 päivää from transplant). Continue harvesting until first frost (Oct 1). Minttu can overwinter in mild climates for continued harvest.

Kumppaniviljely

✅ Kaali✅ Tomaatit

❌ Kamomilla

Minttu 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

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