Skip to main content

Sevenbark

Hydrangea arborescens

Last reviewed: June 2026

Hydrangea arborescens is a native deciduous shrub found across the eastern United States, producing white flower clusters from June through August. This adaptable plant thrives in partial shade and attracts bees, butterflies, and beetles.

Sevenbark (Hydrangea arborescens)
Photo: tkr421 / Wikimedia Commons (CC BY 4.0)

Sevenbark is toxic to dogs and cats.

Listed as toxic by the ASPCA Animal Poison Control Center (opens in new tab) (last reviewed 2026-05-21). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435and your veterinarian's emergency line.

Pollinator Patch flags toxic plants so you can choose a pet-safe native alternative for your yard.

Light

part shade

Water

medium

Size

36"–72" H × 36"–72" W

Bloom

Jun, Jul, Aug

Native to

AL, AR, DE, FL and 19 more states

Pollinators

bees, butterflies, beetles

Browse plants for this ecoregion

Sevenbark is a native deciduous shrub that produces clusters of white flowers from June through August. It has attractive exfoliating bark and grows in a rounded form, making it suitable for foundation plantings and mixed borders.

Growing Sevenbark

Grow Sevenbark in part shade and medium water. Mature plants reach 36 to 72 inches tall and spread 36 to 72 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Sevenbark is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, mid zone.

  • May appear sparse in winter without leaves

Wildlife value

Host plant for brown hooded owlet moth, hydrangea sphinx moth.

The summer blooms attract bees, butterflies, and beetles, providing nectar during peak growing season. Birds may use the dense branching structure for nesting cover.

Common questions

Where is Hydrangea arborescens native to?
Hydrangea arborescens is native to much of the eastern United States, including states from Alabama and Florida north to Vermont and New York, and west to Oklahoma and Missouri.
When does Sevenbark bloom?
Sevenbark blooms during the summer months of June, July, and August, producing clusters of small white flowers.
What pollinators visit Hydrangea arborescens?
Hydrangea arborescens attracts a variety of pollinators including bees, butterflies, and beetles that visit its summer flower clusters.
What growing conditions does Sevenbark prefer?
Sevenbark grows well in partial shade to shade conditions and can tolerate a range of moisture levels from wet to moderately dry soils.
Is Sevenbark toxic to dogs?
Yes. Sevenbark is listed as toxic to dogs by the ASPCA Animal Poison Control Center (aspca.org). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
Is Sevenbark toxic to cats?
Yes. Sevenbark is listed as toxic to cats by the ASPCA Animal Poison Control Center (aspca.org). If your cat has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
Is Sevenbark HOA-friendly?
Sevenbark is generally an HOA-friendly choice in the right placement, with low maintenance.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Pollinator Patch flags toxic plants like Sevenbark and shows pet-safe natives for your ecoregion instead.

Not sure where to start? Take the 2-minute yard quiz