Compass Plant
Silphium laciniatum
Compass Plant is a perennial for focal point, structure, suited to full sun and loam or sandy soil, flowering Jul, Aug, Sep.
| Type | Perennial |
|---|---|
| Mature height | 240 cm |
| Spread | 90 cm |
| Aspect | full sun |
| Foliage | Deciduous |
| Hardiness | USDA 3a-8b |
| Pollinator-friendly | Yes |
| Pet-safe | Not confirmed |
Where to use it in a border
At around 240 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 3a to 8b, so check it suits your area before planting.
It appears in our lists of full sun, sandy soil, pollinator-friendly plants.
Border Builder uses Compass Plant'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
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Worth knowing
- 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:
- Anise Hyssopto edge in front
- Aromatic Asterto edge in front
- Black-Eyed Susanto edge in front
- Blanket Flower 'Arizona Sun'to edge in front
- Blue Sageto edge in front
- Brown-Eyed Susanto edge in front
Garden styles
Sources
Bloom timing and hardiness drawn from: