Spring/summer/fall bloom
Frost tender
Sow seeds in spring once all danger of frost is over in full sun (or part shade in hot climates). Nasturtiums need no added fertilizer in most soils. Poke seeds into well-worked soil about 1 inch deep and 3 to 4 inches apart. Press soil firmly over the seeds and keep moist. When seedlings are large enough to handle, thin 10 inches apart so plants will have ample room to grow.
Sow 2 seeds each in individual 4-inch pots of well-drained seed starting mix 3 weeks before last expected frost date. Cover 1 inch deep. Provide a strong light source. When seedlings have several sets of leaves, pinch out the weaker seedling leaving 1 per pot. After outdoor temperatures are evenly above 50°F (10°C) gradually acclimate to outdoor conditions. Transplant seedlings into the garden 10 to 12 inches apart in full sun.
Climbing nasturtiums are very reliable and easy to grow in any well-drained soil. Help them to twine up their supports, then they’ll climb easily and bloom nonstop. Do not let plants dry out during blooming season. You can also plant Moonlight to tumble along the ground.
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