When should I plant Solros in Zone 4a?

Start Solros seeds indoors around Apr 14. Transplant outdoors after May 12. Expect first harvest around Jul 16.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.

Can I grow Solros in Zone 4a?

Yes. Solros needs 90 days to harvest. Zone 4a has a 149-day growing season, which is sufficient. You can plant up to 4 successions.

🌻

🌻 Growing Solros in Zone 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Solros in this zone. Sista frost: May 5. Första frost: Oct 1.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 14Oct 1

Season: May 5 – Oct 1 (149 dagar) · Succession: plant every 2 weeks (up to 4x)

Zon4a

Sista frostMay 5

Första frostOct 1

Säsong149 dagar

Skörd90 dagar

SolFull Sol

When to Plant Solros in Zone 4a

Start Seeds Indoors: Apr 14

Start Solros seeds indoors around Apr 14 (3 veckor före sista frosten). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: May 12

Transplant Solros seedlings outdoors after May 12. Wait until soil temperature reaches 55F. Space plants at 1/m² (30cm avstånd). Harden off plants for a week before moving outside.

Harvest: Jul 16

First harvest approximately Jul 16 (~65 dagar from transplant). Continue harvesting until first frost (Oct 1).

Samplantering

✅ Gurkor✅ Squash ✅ Majs✅ Bönor

❌ Potatisar

Solros 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 Solros

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

Start Free Solros Growing Guide