When should I plant Harmanček in Zone 6a?

Start Harmanček seeds indoors around Mar 17. Transplant outdoors after Apr 21. Expect first harvest around Jun 5.

What is the last frost date for Zone 6a?

The average last spring frost date for Zone 6a is Apr 28. The first fall frost averages Oct 8, giving a 163-day growing season.

Can I grow Harmanček in Zone 6a?

Yes. Harmanček needs 60 days to harvest. Zone 6a has a 163-day growing season, which is sufficient.

Growing Harmanček in Zone 6a

Zone 6a has mild winters and a long growing season -- good conditions for Harmanček. Posledný mráz: Apr 28. Prvý mráz: Oct 8.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 17Oct 8

Season: Apr 28 – Oct 8 (163 dní)

Zóna6a

Posledný mrázApr 28

Prvý mrázOct 8

Sezóna163 dní

Úroda60 dní

SlnkoPlné Slnko

When to Plant Harmanček in Zone 6a

Start Seeds Indoors: Mar 17

Start Harmanček seeds indoors around Mar 17 (6 týždňov pred posledným mrazom). Optimal germination temperature: 65F. Germinates in 7-14 days.

Transplant Outdoors: Apr 21

Transplant Harmanček seedlings outdoors after Apr 21. Wait until soil temperature reaches 45F. Space plants at 8/m². Harden off plants for a week before moving outside.

Harvest: Jun 5

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

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

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