Flower growing guide
Nasturtiums
Tropaeolum majus
Sun
Full sun
Season
Warm
Maturity
50 to 60 days
Water
Low
Soil pH
6.0 to 7.5
Spacing
10 to 12 in
Planting nasturtiums
Sow directly after the last frost. The large seeds germinate quickly, and plants dislike transplanting, so sow them where they will grow.
Planting details
- Choose bush types for edging and vining types to climb or trail
- Spacing: 10 to 12 inches
- Seed depth: about 1/2 to 1 inch
Growing requirements
Nasturtiums need full sun and poor to average soil. Rich soil and fertilizer produce lush leaves and few flowers.
Harvesting and care
Deadhead to keep blooms coming, or let seeds drop for next year's volunteers. Leaves and flowers go straight into salads; pickle the green seed pods as caper substitutes.
Common mistakes
- Fertilizing, which trades flowers for foliage
- Transplanting, since roots resent disturbance
- Watering heavily, which rot-prone plants do not need once established
Companion plants
Nasturtiums suit the edges of vegetable beds and containers, where they spill over borders and attract pollinators. Their peppery leaves and flowers are edible.