Botanical Name: Nasturtium officinale
Hardiness: Perennial in USDA zones 6–9, otherwise grown as an annual
Plant Dimensions: 10"–14" tall
Variety Information: Small, roundish, light green leaves with a peppery, pungent flavor and scent.
Exposure: Full sun to part shade
Attributes: Good for Containers
When to Sow Outside: 2 to 4 weeks before your average last frost date. Ideal soil temperature for germination is 50°–60°F.
When to Start Inside: 4 to 6 weeks before your average last frost date. When growing indoors, keep continually moist.
Days to Emerge: 5–15 days
Seed Depth: ¼"
Seed Spacing: 1"
Row Spacing: 6"
Thinning: When 1" tall, thin to 1 every 4"
Harvesting: When plants are 4"–6" tall, clip sprigs off the top; the tips are the sweetest, most tender part of the plant. In mild climates, harvest during the cooler parts of the year.