Seashore Mallow
Kosteletzkya pentacarpos
Seashore Mallow is a perennial for focal point, mid-border, suited to full sun to partial shade and clay, loam or moist ground, flowering Jun, Jul, Aug, Sep.
| Type | Perennial |
|---|---|
| Mature height | 150 cm |
| Spread | 90 cm |
| Aspect | full sun to partial shade |
| Foliage | Deciduous |
| Hardiness | USDA 6a-10b, RHS H6 |
| Pollinator-friendly | Yes |
| Pet-safe | Yes |
Where to use it in a border
At around 150 cm, it sits best toward the back of a border, or on its own as a focal point with room around it. Give it about 90 cm of room to spread. It is hardy across USDA zones 6a to 10b and rated H6 by the RHS, so check it suits your area before planting.
It appears in our lists of full sun, clay soil, wet soil, pollinator-friendly plants, pet-safe plants.
Border Builder uses Seashore Mallow's height, spread, soil, bloom months and companions to place it in a full border plan for your own conditions, on iPhone and iPad.
Flowering through the year
Worth knowing
- It copes with ground that stays wet, which most border plants will not.
- Its flowers are valued by bees and other pollinators.
Good companions
Plants that share its conditions and style, chosen to complement its place in the border:
- Allium 'Purple Sensation'to edge in front
- American Cranberrybush 'Redwing'for height behind it
- American Wisteria 'Amethyst Falls'for height behind it
- Angelita Daisyto edge in front
- Apple 'Bramley's Seedling'for height behind it
- Apple 'Cox's Orange Pippin'for height behind it
Garden styles
Sources
Bloom timing and hardiness drawn from: