📍 Fairbanks, AK · Zone 2a · Last frost Monday, June 1, 2026
✏️ ChangeWhen to Plant Nasturtium in Fairbanks, Alaska (99708)
Location
Fairbanks, Alaska
ZIP Code
99708
USDA Zone
2a
Last Frost
Monday, June 1, 2026
📅 Your 2026 Planting Dates
Direct Sow Outdoors
Monday, June 8, 2026
Based on last frost Monday, June 1, 2026 · Zone 2a
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 Fairbanks?
Get your seeds now so they're ready by Monday, June 8, 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 Fairbanks, Alaska? +
In Fairbanks (Zone 2a), direct sow Nasturtium outdoors around Monday, June 8, 2026.
What is the last frost date for Fairbanks, Alaska? +
The average last spring frost date for Fairbanks, Alaska (ZIP 99708) is around Monday, June 1, 2026. This is based on NOAA climate normals for USDA Zone 2a.
How long does Nasturtium take to grow? +
Nasturtium typically matures in about 60 days from direct sowing. In Fairbanks, that means you can expect harvest around Monday, June 8, 2026 plus 60 days.
Should I start Nasturtium indoors or direct sow in Alaska? +
Nasturtium does best when direct sown outdoors. In Fairbanks, sow directly around Monday, June 8, 2026.
📚 More Nasturtium Planting Guides
Other Plants for Fairbanks
Growing Nasturtium in Zone 2a
Nasturtium (Tropaeolum majus) is a popular garden vegetable. In Fairbanks, Alaska, which is in USDA Hardiness Zone 2a, you should direct sow seeds around Monday, June 8, 2026.
Your average last frost date is Monday, June 1, 2026. Nasturtium grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.