When should I plant Zonnebloem in Zone 5b?

Start Zonnebloem seeds indoors around Apr 7. Transplant outdoors after May 5. Expect first harvest around Jul 9.

What is the last frost date for Zone 5b?

The average last spring frost date for Zone 5b is Apr 28. The first fall frost averages Oct 8, giving a 163-day growing season.

Can I grow Zonnebloem in Zone 5b?

Yes. Zonnebloem needs 90 days to harvest. Zone 5b has a 163-day growing season, which is sufficient. You can plant up to 5 successions.

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🌻 Kweken van Zonnebloem in Zone 5b

Zone 5b has cold winters and a moderate growing season. Timing is key for Zonnebloem in this zone. Laatste vorst: Apr 28. Eerste vorst: Oct 8.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 7Oct 8

Season: Apr 28 – Oct 8 (163 dagen) · Succession: plant every 2 weeks (up to 5x)

Zone5b

Laatste vorstApr 28

Eerste vorstOct 8

Seizoen163 dagen

Oogst90 dagen

ZonVolle Zon

When to Plant Zonnebloem in Zone 5b

Start Seeds Indoors: Apr 7

Start Zonnebloem seeds indoors around Apr 7 (3 weken voor de laatste vorst). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: May 5

Transplant Zonnebloem seedlings outdoors after May 5. Wait until soil temperature reaches 55F. Space plants at 1/m² (30cm afstand). Harden off plants for a week before moving outside.

Harvest: Jul 9

First harvest approximately Jul 9 (~65 dagen from transplant). Continue harvesting until first frost (Oct 8).

Begeleidende Beplanting

✅ Komkommers✅ Pompoen ✅ Maïs✅ Bonen

❌ Aardappels

Zonnebloem in Andere 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 Je Tuin voor Zonnebloem

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

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