Nasturtium
Tropaeolum majus
Sow outdoors around your last spring frost. Space plants 10 in (25 cm) apart.
Photo: George Chernilevsky, Public domain · source
When to plant
Timed from your frost dates, so it holds wherever you garden. Give yours and every step below becomes a date.
Optimal Direct Sow
From seedRecommended- Sow outdoorsaround your last spring frost
- First harvestabout 55 days after sowing
Optimal Indoor Start
From seed- Start indoors4 weeks before your last spring frost
- Begin hardening off1 week before your last spring frost
- Plant outaround your last spring frost
- First harvestabout 55 days after sowing
Growing nasturtium
- Spacing in the row
- 10 in (25 cm)
- Between rows
- 15 in (38 cm)
- Planting depth
- 1/2 inch
- Sun
- Full Sun
- Life cycle
- Annual
Edible flowers and leaves; great companion/trap crop.
Feeding
- How often
- Rarely: it flowers best in poor, unfed soil. Fertilizer or rich compost gives big leaves and few flowers; feed only on very poor soil, and then with a low-nitrogen product.
Your nasturtium, planned to the day.
Canopy turns these timings into dates from your own frost data, places every plant at its spacing on your garden map, and tracks it all the way to harvest.