When should I plant Heřánek in Zone 3a?

Start Heřánek seeds indoors around Apr 10. Transplant outdoors after May 15. Expect first harvest around Jun 29.

What is the last frost date for Zone 3a?

The average last spring frost date for Zone 3a is May 22. The first fall frost averages Sep 12, giving a 113-day growing season.

Can I grow Heřánek in Zone 3a?

Yes. Heřánek needs 60 days to harvest. Zone 3a has a 113-day growing season, which is sufficient.

Growing Heřánek in Zone 3a

Zone 3a has harsh winters and a short growing season. Start Heřánek early indoors to maximize your harvest window. Poslední mráz: May 22. První mráz: Sep 12.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 10Sep 12

Season: May 22 – Sep 12 (113 dní)

Zóna3a

Poslední mrázMay 22

První mrázSep 12

Sezóna113 dní

Sklizeň60 dní

SluncePlné Slunce

When to Plant Heřánek in Zone 3a

Start Seeds Indoors: Apr 10

Start Heřánek seeds indoors around Apr 10 (6 týdnů před posledním mrazem). Optimal germination temperature: 65F. Germinates in 7-14 days.

Transplant Outdoors: May 15

Transplant Heřánek seedlings outdoors after May 15. Wait until soil temperature reaches 45F. Space plants at 8/m². Harden off plants for a week before moving outside.

Harvest: Jun 29

First harvest approximately Jun 29 (~45 dní from transplant). Continue harvesting until first frost (Sep 12).

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

Plan Your Garden Heřánek

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

Start Free Heřánek Growing Guide