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Rock Cress Seeds - Snow Peak
Shop nowRegular price $7.49 USDRegular price
How to Plant Rock Cress Flower Seeds
Fast Facts
- Planting season
- Spring
- Life cycle
- Perennial
- Sowing method
- Direct Sow, Start Indoors
- Light
- Full Sun, Partial Shade
- Water needs
- Low
- Planting depth
- 1/16 inch
- Spacing
- 8 inches
- Mature height
- 6 to 8 inches
- Hardiness zones
- 3 to 8
- Bloom season
- Spring
Ranges cover every variety in this group. Check the product page for the exact figures.
About Rock Cress Flower Seeds
Rock Cress Flower Seeds grow in full sun, partial shade positions. Expect 6 to 8 inches at maturity. Flowering runs spring. 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. Hardy in zones 3 to 8 — your local frost dates decide the exact week.
Where to plant
Choose a site in full sun, partial shade. Water needs are low once the plants are established. Free-draining soil matters more than rich soil; seed sown into ground that stays wet rots before it germinates. Allow 8 inches between plants so air can move between them. Plan for 6 to 8 inches of growth when you place them in a bed or border.
How to plant
Sow 1/16 inch deep, spaced 8 inches apart. 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 low, at the base of the plant rather than over the leaves. In zones 3 to 8 these come back each year: let the foliage die down naturally after flowering, since that is what feeds next season's growth. Flowers appear spring; cutting or deadheading regularly keeps more coming.
