📍 East Grand Forks, MN · Zone 4a · Last frost Friday, May 15, 2026
✏️ ChangeWhen to Plant Borage in East Grand Forks, Minnesota (56721)
Location
East Grand Forks, Minnesota
ZIP Code
56721
USDA Zone
4a
Last Frost
Friday, May 15, 2026
📅 Your 2026 Planting Dates
Direct Sow Outdoors
Friday, May 22, 2026
Based on last frost Friday, May 15, 2026 · Zone 4a
Pro tip: Sow Borage directly outdoors 1 week after your last frost date — it needs warm soil.
🌿 Plant Details
☀️ Growing Requirements
☀️
Sun
Full Sun to Partial Shade
💧
Water
Moderate
↔️
Spacing
18" apart
🌱
Planting Depth
0.5" deep
Seeds typically germinate in 7-14 days
Ready to Plant Borage in East Grand Forks?
Get your seeds now so they're ready by Friday, May 22, 2026.
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🤝 Good Companions
⚠️ Avoid Planting Near
Full Companion Planting Guide for Borage
See which plants help Borage 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
Seeds ripen quickly and drop — check daily once flowers fade, or collect from the ground below the plant.
Processing
Collect dark nutlets (seeds) directly — they're large and easy to handle. Dry a few days before storing.
Seed Viability
Up to 3 years when stored cool, dark, and dry.
Pro Tip
Borage self-sows prolifically — expect volunteers every year once established in the garden.
Raised Bed Planting Guides
A 4×8 bed fits 14 plants of Borage. See plant counts, spacing grids, and companion pairings for every bed size →
Frequently Asked Questions
When should I plant Borage in East Grand Forks, Minnesota? +
In East Grand Forks (Zone 4a), direct sow Borage outdoors around Friday, May 22, 2026.
What is the last frost date for East Grand Forks, Minnesota? +
The average last spring frost date for East Grand Forks, Minnesota (ZIP 56721) is around Friday, May 15, 2026. This is based on NOAA climate normals for USDA Zone 4a.
How long does Borage take to grow? +
Borage typically matures in about 60 days from direct sowing. In East Grand Forks, that means you can expect harvest around Friday, May 22, 2026 plus 60 days.
Should I start Borage indoors or direct sow in Minnesota? +
Borage does best when direct sown outdoors. In East Grand Forks, sow directly around Friday, May 22, 2026.
Other Plants for East Grand Forks
Growing Borage in Zone 4a
Borage (Borago officinalis) is a popular garden vegetable. In East Grand Forks, Minnesota, which is in USDA Hardiness Zone 4a, you should direct sow seeds around Friday, May 22, 2026.
Your average last frost date is Friday, May 15, 2026. Borage grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.