Marjoram

Herb · warm season

Sweet marjoram with small round gray-green leaves
Photo: Elizabeth Johnson, iNaturalist (CC0)

When to plant

  • Start seeds indoors about 8 weeks before planting out.
  • Plant outdoors about 1 week after your average last spring frost.
  • Ready to harvest about 70 days after planting out.

Sweeter cousin of oregano. Grown as an annual below zone 9.

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

Growing basics

Harmful to pets. Can upset cats' and dogs' stomachs if they eat much of it.

Sun
Full sun (6+ hours)
Spacing
8–10 in
Soil temperature
At least 60°F
Time to harvest
About 70 days
Containers
At least 1 gallons
Plant family
Mint family (herbs)
Harvest per plant
About 0.2 lb
Seeds keep
About 3 years

Companions

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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