Nasturtium illustration 🌺

🌺 Growing Nasturtium in Zone 2b

Zone 2b has harsh winters and a short growing season. Start Nasturtium early indoors to maximize your harvest window. Last frost: May 25. First frost: Aug 28.

Planting Calendar

Indoor
Outdoor
Harvest
Apr 27Aug 28

Season: May 25 – Aug 28 (95 days)

Zone2b
Last FrostMay 25
First FrostAug 28
Season Length95 days
Days to Harvest45
SunFull Sun
Frost ToleranceNone
Spacing4/sqft (6" apart)

When to Plant Nasturtium in Zone 2b

Start Seeds Indoors: Apr 27

Start Nasturtium seeds indoors around Apr 27 (4 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 7–14 days.

Transplant Outdoors: Jun 1

Transplant Nasturtium seedlings outdoors after Jun 1. Wait until soil temperature reaches 55°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Jul 11

First harvest approximately Jul 11 (~40 days from transplant). Continue harvesting until first frost (Aug 28).

Companion Planting

✅ Cucumbers✅ Squash✅ Pumpkins✅ Radishes✅ Cabbage

Plan Your Nasturtium Garden

Track Nasturtium from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

Start Free Nasturtium Growing Guide