When should I plant Heřánek in Zone 3b?

Start Heřánek seeds indoors around Apr 3. Transplant outdoors after May 8. Expect first harvest around Jun 22.

What is the last frost date for Zone 3b?

The average last spring frost date for Zone 3b is May 15. The first fall frost averages Sep 22, giving a 130-day growing season.

Can I grow Heřánek in Zone 3b?

Yes. Heřánek needs 60 days to harvest. Zone 3b has a 130-day growing season, which is sufficient.

Growing Heřánek in Zone 3b

Zone 3b has harsh winters and a short growing season. Start Heřánek early indoors to maximize your harvest window. Poslední mráz: May 15. První mráz: Sep 22.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 3Sep 22

Season: May 15 – Sep 22 (130 dní)

Zóna3b

Poslední mrázMay 15

První mrázSep 22

Sezóna130 dní

Sklizeň60 dní

SluncePlné Slunce

When to Plant Heřánek in Zone 3b

Start Seeds Indoors: Apr 3

Start Heřánek seeds indoors around Apr 3 (6 týdnů před posledním mrazem). Optimal germination temperature: 65F. Germinates in 7-14 days.

Transplant Outdoors: May 8

Transplant Heřánek seedlings outdoors after May 8. Wait until soil temperature reaches 45F. Space plants at 8/m². Harden off plants for a week before moving outside.

Harvest: Jun 22

First harvest approximately Jun 22 (~45 dní from transplant). Continue harvesting until first frost (Sep 22).

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

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