Nasturtium

Flower · warm season

An orange nasturtium flower among round leaves
Photo: juliatodd, iNaturalist (CC0)

When to plant

  • Sow seeds outdoors about 1 week after your average last spring frost.
  • Ready to harvest about 55 days after planting.

Trap crop for aphids. Leaves and flowers are edible.

Frost dates depend on where you live. Enter your ZIP code to get exact dates.

Growing basics

Sun
Part sun (4–6 hours)
Spacing
10–12 in
Soil temperature
At least 55°F
Time to harvest
About 55 days
Containers
At least 1 gallons
Plant family
Other
Harvest per plant
About 0.3 lb
Seeds keep
About 5 years

Companions

Good neighbors: Cucumber, Winter squash, Zucchini / Summer squash, Broccoli

Keep apart: Horseradish. Horseradish spreads aggressively. Give it its own spot.

Keep apart: Mint. Mint spreads aggressively into neighbors. Keep it in a pot.

Keep apart: Fennel (bulb). Fennel slows the growth of most garden plants. Grow it on its own.

Keep apart: Sunchoke (Jerusalem artichoke). Sunchokes spread aggressively and shade neighbors.

Grow it well

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