Hoary Alison
Berteroa incana
Last reviewed: August 2026
Toxicity unknown
Hoary Alison (Berteroa incana) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
low
Size
8"–24" H × 6"–12" W
Bloom
May, Jun, Jul, Aug
Pollinators
bees, beetles, flies
Native alternatives to Hoary Alison
Hoary Alison is not native to the United States. These natives fill a similar role in a planting, matched on bloom season, bloom color and mature size.
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaHoary alison is a low-growing perennial with small white flowers that bloom from late spring through summer. This compact plant forms neat clumps and tolerates drought well once established.
In an HOA neighborhood
Hoary Alison takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Non-native species with weedy appearance
- Can spread aggressively and look unkempt
Wildlife value
The small white flowers attract various pollinators including native bees, beetles, and flies throughout its long blooming season.
Common questions
- How much sun does Hoary Alison need?
- Hoary Alison grows best in full sun conditions.
- When does Hoary Alison bloom?
- Hoary Alison blooms in May, June, July, and August.
- What pollinators does Hoary Alison attract?
- Hoary Alison draws bees, beetles, and flies.
- Is Hoary Alison HOA-friendly?
- Hoary Alison takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Hoary Alison? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Planning a bed around it? Start a free plan with this plant
Not sure where to start? Take the 2-minute yard quiz