Nasturtium

Use our zone-based planting guide to know when to plant nasturtium.

Plant name Zone Start seeds indoors (spring/fall) Start seeds outdoors (spring/fall) Plant seedlings/transplants outdoors (spring/fall) Plant spacing # plants per person
Nasturtium 3a April 1-15 On/around May 15 (after last frost) On/around May 15 (after last frost) 10-12 inches n/a
Nasturtium 3b April 1-15 On/around May 15 (after last frost) On/around May 15 (after last frost) 10-12 inches n/a
Nasturtium 4a April 1-15 On/around May 15 (after last frost) On/around May 15 (after last frost) 10-12 inches n/a
Nasturtium 4b April 1-15 On/around May 15 (after last frost) On/around May 15 (after last frost) 10-12 inches n/a
Nasturtium 5a March 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 10-12 inches n/a
Nasturtium 5b March 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 10-12 inches n/a
Nasturtium 6a March 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 10-12 inches n/a
Nasturtium 6b March 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 10-12 inches n/a
Nasturtium 7a March 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 10-12 inches n/a
Nasturtium 7b March 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 10-12 inches n/a
Nasturtium 8a Feb. 1-15 On/around March 15 (after last frost) On/around March 15 (after last frost) 10-12 inches n/a
Nasturtium 8b Feb. 1-15 On/around March 15 (after last frost) On/around March 15 (after last frost) 10-12 inches n/a
Nasturtium 9a 4-6 weeks before planting outside year-round year-round 10-12 inches n/a
Nasturtium 9b 4-6 weeks before planting outside year-round year-round 10-12 inches n/a
Nasturtium 10a 4-6 weeks before planting outside year-round year-round 10-12 inches n/a
Nasturtium 10b 4-6 weeks before planting outside year-round year-round 10-12 inches n/a
Nasturtium 11a 4-6 weeks before planting outside year-round year-round 10-12 inches n/a
Nasturtium 11b 4-6 weeks before planting outside year-round year-round 10-12 inches n/a

* Can be grown as a perennial in Zones 9-11, but is most often grown as an annual.