Nasturtium Flower Seeds

Nasturtium Flower Seeds

29 varieties

29 products

Learn how to plant

How to Plant Nasturtium Flower Seeds

Fast Facts

Planting season
Spring
Life cycle
Annual, Perennial
Sowing method
Direct Sow, Start Indoors
Seed prep
Soaking
Light
Full Sun, Partial Shade
Water needs
Average
Planting depth
1/2 inch, 1/4 inch
Spacing
Varies by variety
Mature height
Varies by variety
Hardiness zones
1 to 11
Bloom season
Spring through Summer, Summer, Summer through Fall

Ranges cover every variety in this group. Check the product page for the exact figures.

About Nasturtium Flower Seeds

Nasturtium Flower Seeds grow in full sun, partial shade positions. The figures below are the ones on the packets in this group; each product page carries the exact numbers for that variety.

When to plant

Plant in spring. Seed can be started indoors ahead of the season or sown straight into prepared ground once it has warmed. Soaking or nicking the seed coat before sowing speeds up and evens out germination. Hardy in zones 1 to 11 — your local frost dates decide the exact week.

Where to plant

Choose a site in full sun, partial shade. Water needs are average once the plants are established. Free-draining soil matters more than rich soil; seed sown into ground that stays wet rots before it germinates.

How to plant

Sow 1/2 inch or 1/4 inch deep. Water gently to settle the soil, then keep the surface evenly moist until seedlings or shoots appear. Indoor starts do best in warmth and bright light; harden the seedlings off over a week before planting out.

How to care

Keep watering average, at the base of the plant rather than over the leaves. In zones 1 to 11 these come back each year: let the foliage die down naturally after flowering, since that is what feeds next season's growth.

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