High Desert Flower Farm· Growing Notebook
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No photograph yetSunflower ‘American Giant Hybrid’← Sunflower

Guides/Sunflower

Sunflower ‘American Giant Hybrid’

Helianthus annuus

Color

Bright Yellow, DARK BROWN Center

Days to cut

70 days

Status

trying

Catalog ID

CF-01

Seasons logged

5

First sown

2026-05-06

Best rating

5/5

This is the variety to grow for large size and height. Plants grow 8-15 feet tall and produce huge, yellow faces that can grow to over a foot wide. Its extremely sturdy stems hold up to summer storms better than other tall varieties. Hybrid vigor means the plant grows fast and reaches its mature height in record time.

Trials

Sown
Source
Seeds
Rating
Notes
2026-05-26———Direct Sow→2026-06-12———Direct Sow→2026-05-06———Direct Sow→2026——●●●●●I grew them as a screen in the bed on the property line with the Hunters. They reached about 8 ft in height by the end of July.→—Gurney's——Seed source on file — packet size: ~50 seeds→

Other Observations

Notes not filed against a sowing. Everything else sits with its trial above.

No loose observations — every note belongs to a sowing.

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