📍 Callaway, MN · Zone 4a · Last frost Friday, May 15, 2026
✏️ ChangeWhen to Plant Columbine in Callaway, Minnesota (56521)
Location
Callaway, Minnesota
ZIP Code
56521
USDA Zone
4a
Last Frost
Friday, May 15, 2026
📅 Your 2026 Planting Dates
Start Seeds Indoors
Friday, March 20, 2026
Transplant Outdoors
Friday, May 29, 2026
Based on last frost Friday, May 15, 2026 · Zone 4a
Pro tip: Start Columbine seeds indoors 8 weeks before your last frost date, then transplant outdoors around Friday, May 29, 2026.
🌿 Plant Details
☀️ 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 Callaway?
Get your seeds now so they're ready by Friday, March 20, 2026.
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🤝 Good Companions
Full Companion Planting Guide for Columbine
See which plants help Columbine thrive, which to keep away, and raised bed layout tips →
🛠️ Supplies You'll Need
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🌾 Seed Saving Guide
🟢 EasyWhen to Harvest Seed
Allow seed pods (follicles) to dry and turn brown on the plant. Harvest before they split.
Processing
Crack dry pods over a bowl to release tiny black seeds. Dry 1 week before storing.
Seed Viability
Up to 2 years when stored cool, dark, and dry.
Pro Tip
Columbines cross freely between varieties and species — saved seeds often produce beautiful new color combinations.
Raised Bed Planting Guides
A 4×8 bed fits 32 plants of Columbine. See plant counts, spacing grids, and companion pairings for every bed size →
Frequently Asked Questions
When should I plant Columbine in Callaway, Minnesota? +
In Callaway (Zone 4a), start Columbine seeds indoors around Friday, March 20, 2026 and transplant outdoors around Friday, May 29, 2026.
What is the last frost date for Callaway, Minnesota? +
The average last spring frost date for Callaway, Minnesota (ZIP 56521) is around Friday, May 15, 2026. This is based on NOAA climate normals for USDA Zone 4a.
How long does Columbine take to grow? +
Columbine typically matures in about 365 days from transplanting. In Callaway, that means you can expect harvest around Friday, May 29, 2026 plus 365 days.
Should I start Columbine indoors or direct sow in Minnesota? +
Columbine should be started indoors 8 weeks before your last frost date. In Callaway, that means starting around Friday, March 20, 2026.
📚 More Columbine Planting Guides
Other Plants for Callaway
Growing Columbine in Zone 4a
Columbine (Aquilegia vulgaris) is a popular garden vegetable. In Callaway, Minnesota, which is in USDA Hardiness Zone 4a, you should start seeds indoors around Friday, March 20, 2026.
Your average last frost date is Friday, May 15, 2026. Plan to transplant your Columbine seedlings outdoors around Friday, May 29, 2026, about 2 weeks after your last frost date.