When should I plant Nasturtium in Zone 8a?

Start Nasturtium seeds indoors around Mar 8. Transplant outdoors after Apr 12. Expect first harvest around May 22.

What is the last frost date for Zone 8a?

The average last spring frost date for Zone 8a is Apr 5. The first fall frost averages Oct 28, giving a 206-day growing season.

Can I grow Nasturtium in Zone 8a?

Yes. Nasturtium needs 45 days to harvest. Zone 8a has a 206-day growing season, which is sufficient.

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🌺 Growing Nasturtium in Zone 8a

Zone 8a has warm winters and an extended growing season — excellent for heat-loving crops like Nasturtium. Last frost: Apr 5. First frost: Oct 28.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 8Oct 28

Season: Apr 5 – Oct 28 (206 days)

Zone8a

Last FrostApr 5

First FrostOct 28

Season Length206 days

Days to Harvest45

SunFull Sun

Frost ToleranceNone

Spacing4/sqft (6" apart)

When to Plant Nasturtium in Zone 8a

Start Seeds Indoors: Mar 8

Start Nasturtium seeds indoors around Mar 8 (4 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 7–14 days.

Transplant Outdoors: Apr 12

Transplant Nasturtium seedlings outdoors after Apr 12. 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 22

First harvest approximately May 22 (~40 days from transplant). Continue harvesting until first frost (Oct 28).

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

Plan Your Nasturtium Garden

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

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