When should I plant Gira-sol in Zone 4a?

Start Gira-sol 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 Gira-sol in Zone 4a?

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

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🌻 Growing Gira-sol in Zone 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Gira-sol in this zone. Darrera gelada: May 5. Primera gelada: Oct 1.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 14Oct 1

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

Zona4a

Darrera geladaMay 5

Primera geladaOct 1

Temporada149 dies

Collita90 dies

SolSol Ple

When to Plant Gira-sol in Zone 4a

Start Seeds Indoors: Apr 14

Start Gira-sol seeds indoors around Apr 14 (3 setmanes abans de l’última gelada). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: May 12

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

Harvest: Jul 16

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

Plantació Companya

✅ Cogombres✅ Carbassa ✅ Blat de Moro✅ Mongetes

❌ Patates

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

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