Growing Instructions
Nasturtiums thrive in mild, temperate conditions and do best in full sun to partial shade. It's recommended to sow nasturtium seeds directly in the ground or in containers where they are to grow since they don't like root disturbance. Their seeds are large and have a hard coat, so to speed up germination, you can soak the seeds in water overnight before planting. Sow them about 1/2" deep and 8"-10" apart. They should sprout in 7-10 days. Nasturtiums prefer well-drained soil that is not too fertile. Soil that is too rich (especially if it's high nitrogen) will lead to lots of foliage and few flowers, so lean soil is ideal for lots of blooms. Once established, only water when the soil is drying out.
👍 Good companions | Squash, melons, pumpkins, cucumbers, tomatoes, peppers, brassicas like broccoli, cabbage, kale, radishes and other root crops (nasturtium repels their pests or acts as a trap crop and attracts pollinators) | ||
👎 Bad companions | No known bad companions! | ||
Growing zones | 2-10 | Crop type | Annual |
Crop difficulty | Mid | Seed type | Open-Pollinated |
Sowing method | Direct Sow Recommended | Containers? | Yes |
Sun req. | Full/Partial Sun | Ideal soil temp. | 60-70°F |
Days to germination | 7-14 days | Days to maturity | 60-75 days |
Seed spacing | 8"-10" | Row spacing | 8"-10" |
Seed depth | 1/2" | Needs support? | No |