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🌺 Growing Nasturtium in Zone 8b

Zone 8b has warm winters and an extended growing season — excellent for heat-loving crops like Nasturtium. Last frost: Mar 22. First frost: Nov 10.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 22Nov 10

Season: Mar 22 – Nov 10 (233 days)

Zone8b

Last FrostMar 22

First FrostNov 10

Season Length233 days

Days to Harvest45

SunFull Sun

Frost ToleranceNone

Spacing4/sqft (6" apart)

When to Plant Nasturtium in Zone 8b

Start Seeds Indoors: Feb 22

Start Nasturtium seeds indoors around Feb 22 (4 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 7–14 days.

Transplant Outdoors: Mar 29

Transplant Nasturtium seedlings outdoors after Mar 29. Wait until soil temperature reaches 55°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: May 8

First harvest approximately May 8 (~40 days from transplant). Continue harvesting until first frost (Nov 10).

Companion Planting

✅ Cucumbers✅ Squash✅ Pumpkins✅ Radishes✅ Cabbage

Nasturtium in Other Zones

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

Frequently Asked Questions

When should I plant Nasturtium in Zone 8b?

Start Nasturtium seeds indoors around Feb 22. Transplant outdoors after Mar 29. Expect first harvest around May 8.

What is the last frost date for Zone 8b?

The average last spring frost date for Zone 8b is Mar 22. The first fall frost averages Nov 10, giving a 233-day growing season.

Can I grow Nasturtium in Zone 8b?

Yes. Nasturtium needs 45 days to harvest. Zone 8b has a 233-day growing season, which is sufficient.

What is the best month to plant Nasturtium in Zone 8b?

The best time to start Nasturtium in Zone 8b is Feb. Begin seeds indoors around Feb 22, then transplant outdoors after the last frost date of Mar 22.

What companion plants grow well with Nasturtium?

Good companion plants for Nasturtium include Cucumbers, Squash, Pumpkins, Radishes, Cabbage.

How long does Nasturtium take to harvest?

Nasturtium takes approximately 45 days from planting to harvest. In Zone 8b, expect your first harvest around May 8.

Plan Your Nasturtium Garden

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

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