When should I plant Heřánek in Zone 4b?

Start Heřánek seeds indoors around Mar 20. Transplant outdoors after Apr 24. Expect first harvest around Jun 8.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Can I grow Heřánek in Zone 4b?

Yes. Heřánek needs 60 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

Growing Heřánek in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Heřánek in this zone. Poslední mráz: May 1. První mráz: Oct 5.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 20Oct 5

Season: May 1 – Oct 5 (157 dní)

Zóna4b

Poslední mrázMay 1

První mrázOct 5

Sezóna157 dní

Sklizeň60 dní

SluncePlné Slunce

When to Plant Heřánek in Zone 4b

Start Seeds Indoors: Mar 20

Start Heřánek seeds indoors around Mar 20 (6 týdnů před posledním mrazem). Optimal germination temperature: 65F. Germinates in 7-14 days.

Transplant Outdoors: Apr 24

Transplant Heřánek seedlings outdoors after Apr 24. Wait until soil temperature reaches 45F. Space plants at 8/m². Harden off plants for a week before moving outside.

Harvest: Jun 8

First harvest approximately Jun 8 (~45 dní from transplant). Continue harvesting until first frost (Oct 5).

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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