📍 Bird Island, MN · Zone 4b · Last frost Tuesday, May 5, 2026
✏️ ChangeWhen to Plant Nasturtium in Bird Island, Minnesota (55310)
Location
Bird Island, Minnesota
ZIP Code
55310
USDA Zone
4b
Last Frost
Tuesday, May 5, 2026
📅 Your 2026 Planting Dates
Direct Sow Outdoors
Tuesday, May 12, 2026
Based on last frost Tuesday, May 5, 2026 · Zone 4b
Pro tip: Sow Nasturtium directly outdoors 1 week after your last frost date — it needs warm soil.
🌿 Plant Details
☀️ Growing Requirements
☀️
Sun
Full Sun to Partial Shade
💧
Water
Low (drought tolerant)
↔️
Spacing
12" apart
🌱
Planting Depth
0.5" deep
Seeds typically germinate in 7-14 days
Ready to Plant Nasturtium in Bird Island?
Get your seeds now so they're ready by Tuesday, May 12, 2026.
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🤝 Good Companions
⚠️ Avoid Planting Near
Full Companion Planting Guide for Nasturtium
See which plants help Nasturtium thrive, which to keep away, and raised bed layout tips →
🛠️ Supplies You'll Need
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Common Nasturtium Varieties
Popular cultivars to look for at your local nursery or seed supplier.
Alaska
Variegated white-splashed leaves with bright mixed flowers; edible blooms and leaves.
Jewel Mix
Classic bushy mix of red, orange, and yellow flowers; most commonly grown variety.
Empress of India
Heirloom compact variety with deep scarlet flowers against dark blue-green foliage.
Moonlight
Trailing variety with pale yellow flowers; beautiful in hanging baskets.
🌾 Seed Saving Guide
🟢 EasyWhen to Harvest Seed
Seeds ripen quickly after flowering — collect wrinkled, tan-brown seeds directly from the plant.
Processing
Pick seeds when tan and firm, lay flat to dry for 2 weeks before storing.
Seed Viability
Up to 5 years when stored cool, dark, and dry.
Pro Tip
Large, easy-to-handle seeds make nasturtium one of the best plants for beginner seed savers.
Raised Bed Planting Guides
A 4×8 bed fits 32 plants of Nasturtium. See plant counts, spacing grids, and companion pairings for every bed size →
Frequently Asked Questions
When should I plant Nasturtium in Bird Island, Minnesota? +
In Bird Island (Zone 4b), direct sow Nasturtium outdoors around Tuesday, May 12, 2026.
What is the last frost date for Bird Island, Minnesota? +
The average last spring frost date for Bird Island, Minnesota (ZIP 55310) is around Tuesday, May 5, 2026. This is based on NOAA climate normals for USDA Zone 4b.
How long does Nasturtium take to grow? +
Nasturtium typically matures in about 60 days from direct sowing. In Bird Island, that means you can expect harvest around Tuesday, May 12, 2026 plus 60 days.
Should I start Nasturtium indoors or direct sow in Minnesota? +
Nasturtium does best when direct sown outdoors. In Bird Island, sow directly around Tuesday, May 12, 2026.
📚 More Nasturtium Planting Guides
Other Plants for Bird Island
Growing Nasturtium in Zone 4b
Nasturtium (Tropaeolum majus) is a popular garden vegetable. In Bird Island, Minnesota, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, May 12, 2026.
Your average last frost date is Tuesday, May 5, 2026. Nasturtium grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.