When to Plant Celosia in Beaverton, Oregon (97077)

Location

Beaverton, Oregon

ZIP Code

97077

USDA Zone

Last Frost

Friday, February 20, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, January 9, 2026

Transplant Outdoors Friday, February 27, 2026

Pro Tip: Start Celosia seeds indoors 6 weeks before your last frost date, then transplant outdoors around Friday, February 27, 2026.

🌿 Plant Details

Scientific Name Celosia argentea

Days to Maturity 75 days

Mature Height 12-36"

Spread 9"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

9" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 10-14 days

Ready to Plant Celosia in Beaverton?

Get your seeds now so they're ready by Friday, January 9, 2026.

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Growing Celosia in Zone 9a

Celosia (Celosia argentea) is a popular garden vegetable. In Beaverton, Oregon, which is in USDA Hardiness Zone 9a, you should start seeds indoors around Friday, January 9, 2026.

Your average last frost date is Friday, February 20, 2026. Plan to transplant your Celosia seedlings outdoors around Friday, February 27, 2026, about 1 weeks after your last frost date.