When to Plant Columbine in Reading, Pennsylvania (19607)

Location

Reading, Pennsylvania

ZIP Code

19607

USDA Zone

Last Frost

Friday, April 10, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, February 13, 2026

Transplant Outdoors Friday, April 24, 2026

Pro Tip: Start Columbine seeds indoors 8 weeks before your last frost date, then transplant outdoors around Friday, April 24, 2026.

🌿 Plant Details

Scientific Name Aquilegia vulgaris

Days to Maturity 365 days

Mature Height 18-36"

Spread 18"

☀️ Growing Requirements

☀️

Sun

Partial Shade to Full Sun

💧

Water

Moderate (1 inch/week)

↔️

Spacing

12" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 21-30 days

Ready to Plant Columbine in Reading?

Get your seeds now so they're ready by Friday, February 13, 2026.

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🤝 Good Companions

FernHostasSpring Bulbs

See the full companion planting guide for Columbine →

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Growing Columbine in Zone 7a

Columbine (Aquilegia vulgaris) is a popular garden vegetable. In Reading, Pennsylvania, which is in USDA Hardiness Zone 7a, you should start seeds indoors around Friday, February 13, 2026.

Your average last frost date is Friday, April 10, 2026. Plan to transplant your Columbine seedlings outdoors around Friday, April 24, 2026, about 2 weeks after your last frost date.