When should I plant Ηλίανθος in Zone 12a?

Start Ηλίανθος seeds indoors around Dec 11. Transplant outdoors after Jan 8. Expect first harvest around Mar 14.

What is the last frost date for Zone 12a?

The average last spring frost date for Zone 12a is Jan 1. The first fall frost averages Dec 31, giving a 364-day growing season.

Can I grow Ηλίανθος in Zone 12a?

Yes. Ηλίανθος needs 90 days to harvest. Zone 12a has a 364-day growing season, which is sufficient. You can plant up to 19 successions.

🌻

🌻 Growing Ηλίανθος in Zone 12a

Zone 12a has a year-round growing season. Ηλίανθος can be planted almost any time with proper planning. Τελευταίος παγετός: Jan 1. Πρώτος παγετός: Dec 31.

Planting Calendar

Indoor

Outdoor

Harvest

Dec 11Dec 31

Season: Jan 1 – Dec 31 (364 ημέρες) · Succession: plant every 2 weeks (up to 19x)

Ζώνη12a

Τελευταίος παγετόςJan 1

Πρώτος παγετόςDec 31

Περίοδος364 ημέρες

Συγκομιδή90 ημέρες

ΉλιοςΠλήρης Ήλιος

When to Plant Ηλίανθος in Zone 12a

Start Seeds Indoors: Dec 11

Start Ηλίανθος seeds indoors around Dec 11 (3 εβδομάδες πριν τον τελευταίο παγετό). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: Jan 8

Transplant Ηλίανθος seedlings outdoors after Jan 8. Wait until soil temperature reaches 55F. Space plants at 1/μ² (30cm απόσταση). Harden off plants for a week before moving outside.

Harvest: Mar 14

First harvest approximately Mar 14 (~65 ημέρες from transplant). Continue harvesting until first frost (Dec 31).

Συντροφική Φύτευση

✅ Αγγούρια✅ Κολοκύθα ✅ Καλαμπόκι✅ Φασόλια

❌ Πατάτες

Ηλίανθος 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 Ηλίανθος

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

Start Free Ηλίανθος Growing Guide