Ashy hydrangea
Hydrangea cinerea
Last reviewed: September 2026

Toxicity unknown
Ashy hydrangea (Hydrangea cinerea) 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
part shade
Water
medium
Size
36"–72" H × 36"–60" W
Bloom
May, Jun, Jul
Native to
AL, AR, GA, IL and 8 more states
Pollinators
native bees, butterflies, beetles
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 areaBrowse plants for this ecoregion
A rounded deciduous shrub with broad, ashy-gray-backed leaves and flat-topped clusters of white flowers, some sterile and showy around the outer edge. It grows in woodland understories, blooming through early summer.
Wildlife value
Its flat flower clusters attract native bees, butterflies, and beetles seeking accessible nectar and pollen.
Common questions
- How much sun does Ashy hydrangea need?
- Ashy hydrangea grows best in part shade conditions.
- When does Ashy hydrangea bloom?
- Ashy hydrangea blooms in May, June, and July.
- Where is Ashy hydrangea native?
- Ashy hydrangea (Hydrangea cinerea) is native to AL, AR, GA, IL and 8 more states, per the World Checklist of Vascular Plants (Kew).
- What pollinators does Ashy hydrangea attract?
- Ashy hydrangea draws native bees, butterflies, and beetles.
Native range data from the World Checklist of Vascular Plants (Kew). 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 Ashy hydrangea? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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