When should I plant Isoköynnöskrassi in Zone 4a?

Start Isoköynnöskrassi seeds indoors around Apr 7. Transplant outdoors after May 12. Expect first harvest around Jun 21.

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 Isoköynnöskrassi in Zone 4a?

Yes. Isoköynnöskrassi needs 45 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

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🌺 Growing Isoköynnöskrassi in Zone 4a

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

Planting Calendar

Indoor

Outdoor

Harvest

Apr 7Oct 1

Season: May 5 – Oct 1 (149 päivää)

Vyöhyke4a

Viimeinen hallaMay 5

Ensimmäinen hallaOct 1

Kausi149 päivää

Sato45 päivää

AurinkoTäysi Aurinko

When to Plant Isoköynnöskrassi in Zone 4a

Start Seeds Indoors: Apr 7

Start Isoköynnöskrassi seeds indoors around Apr 7 (4 viikkoa ennen viimeistä hallaa). Optimal germination temperature: 70F. Germinates in 7-14 days.

Transplant Outdoors: May 12

Transplant Isoköynnöskrassi seedlings outdoors after May 12. Wait until soil temperature reaches 55F. Space plants at 4/m² (15cm välein). Harden off plants for a week before moving outside.

Harvest: Jun 21

First harvest approximately Jun 21 (~40 päivää from transplant). Continue harvesting until first frost (Oct 1).

Kumppaniviljely

✅ Kurkut✅ Kurpitsa✅ Kurpitsat✅ Retiisit✅ Kaali

Isoköynnöskrassi 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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