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Climbing hydrangea

Hydrangea barbara

Last reviewed: September 2026

Climbing hydrangea (Hydrangea barbara)

Toxicity unknown

Climbing hydrangea (Hydrangea barbara) 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, DE, FL and 8 more states

Pollinators

bees, butterflies

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.

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A mounding shrub with broad, toothed leaves and rounded clusters of small white flowers ringed by larger sterile florets in early summer. It grows along shaded streambanks and woodland edges.

Wildlife value

The flower clusters attract native bees and butterflies, and the dense form offers cover for small birds.

Common questions

How much sun does Climbing hydrangea need?
Climbing hydrangea grows best in part shade conditions.
When does Climbing hydrangea bloom?
Climbing hydrangea blooms in May, June, and July.
Where is Climbing hydrangea native?
Climbing hydrangea (Hydrangea barbara) is native to AL, AR, DE, FL and 8 more states, per the World Checklist of Vascular Plants (Kew).
What pollinators does Climbing hydrangea attract?
Climbing hydrangea draws bees and butterflies.

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.

See all plant problem guides

Ready to grow Climbing hydrangea? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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