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When to Plant Nasturtium in Gouldsboro, Maine (04607)

Location

Gouldsboro, Maine

ZIP Code

04607

USDA Zone

6a

Last Frost

Monday, April 20, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Monday, April 27, 2026

Based on last frost Monday, April 20, 2026 · Zone 6a

Pro tip: Sow Nasturtium directly outdoors 1 week after your last frost date — it needs warm soil.

🌿 Plant Details

Scientific Name Tropaeolum majus
Days to Maturity 60 days
Mature Height 12-18"
Spread 18"
Type Annual

☀️ 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 Gouldsboro?

Get your seeds now so they're ready by Monday, April 27, 2026.

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🤝 Good Companions

TomatoCucumberSquashRadish

⚠️ Avoid Planting Near

Fennel
🤝

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

open-pollinated

Variegated white-splashed leaves with bright mixed flowers; edible blooms and leaves.

Jewel Mix

open-pollinated

Classic bushy mix of red, orange, and yellow flowers; most commonly grown variety.

Empress of India

heirloom

Heirloom compact variety with deep scarlet flowers against dark blue-green foliage.

Moonlight

open-pollinated

Trailing variety with pale yellow flowers; beautiful in hanging baskets.

🌾 Seed Saving Guide

🟢 Easy
✅ Open-pollinated — seeds grow true to parent

When 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 Gouldsboro, Maine? +

In Gouldsboro (Zone 6a), direct sow Nasturtium outdoors around Monday, April 27, 2026.

What is the last frost date for Gouldsboro, Maine? +

The average last spring frost date for Gouldsboro, Maine (ZIP 04607) is around Monday, April 20, 2026. This is based on NOAA climate normals for USDA Zone 6a.

How long does Nasturtium take to grow? +

Nasturtium typically matures in about 60 days from direct sowing. In Gouldsboro, that means you can expect harvest around Monday, April 27, 2026 plus 60 days.

Should I start Nasturtium indoors or direct sow in Maine? +

Nasturtium does best when direct sown outdoors. In Gouldsboro, sow directly around Monday, April 27, 2026.

Other Plants for Gouldsboro

Growing Nasturtium in Zone 6a

Nasturtium (Tropaeolum majus) is a popular garden vegetable. In Gouldsboro, Maine, which is in USDA Hardiness Zone 6a, you should direct sow seeds around Monday, April 27, 2026.

Your average last frost date is Monday, April 20, 2026. Nasturtium grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.