Powdery Alligator-flag
Thalia dealbata
Powdery Alligator-flag is a perennial for focal point, suited to full sun to partial shade and clay, loam or moist ground, flowering Jun, Jul, Aug.
| Type | Perennial |
|---|---|
| Mature height | 180 cm |
| Spread | 90 cm |
| Aspect | full sun to partial shade |
| Foliage | Deciduous |
| Hardiness | USDA 6a-10b |
| Pollinator-friendly | Yes |
| Pet-safe | Yes |
Where to use it in a border
At around 180 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, 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 Powdery Alligator-flag'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:
- Anise/Blue Sageto flower when it does not
- Atamasco Rain Lilyto edge in front
- Cleyerafor height behind it
- Creeping Phlox 'Sherwood Purple'to edge in front
- Devilwoodfor height behind it
- Firebushfor height behind it