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When to Plant Nasturtium in Gaithersburg, Maryland (20879)

Location

Gaithersburg, Maryland

ZIP Code

20879

USDA Zone

7b

Last Frost

Sunday, April 5, 2026

📅 Planting Calendar

Direct Sow Outdoors Sunday, April 12, 2026

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 Gaithersburg?

Get your seeds now so they're ready by Sunday, April 12, 2026.

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🤝 Good Companions

TomatoCucumberSquashRadish

⚠️ Avoid Planting Near

Fennel

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Growing Nasturtium in Zone 7b

Nasturtium (Tropaeolum majus) is a popular garden vegetable. In Gaithersburg, Maryland, which is in USDA Hardiness Zone 7b, you should direct sow seeds around Sunday, April 12, 2026.

Your average last frost date is Sunday, April 5, 2026. Nasturtium grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.