Quick answer: Smooth hydrangea (Hydrangea arborescens) is native to 12 states. What's commonly sold under this name is often a bred variety or the wrong species — see the lookalike alert below. It's typically live plant, verified 15 Sep 2026.
Where it's native
Listed in the register as native to these states. Click a state for its full native-plant guide.
Growing conditions
From the Lady Bird Johnson Wildflower Center Native Plant Database.
| Sun | Part Shade |
|---|---|
| Water | Moist |
| Soil | Rich, well-drained, moist soils |
| Bloom | Bloom May-Aug |
| Height | Up to 10 ft, typically 3-6 ft |
| Wildlife value | Larval host for Hydrangea sphinx moth, conspicuous flowers |
none noted (suckers freely/spreads, not labeled invasive)
Lookalike alert
Cultivar only ('Annabelle' / 'Invincibelle Spirit II') in all 6 states; no wild-type packet found anywhere.
Sold as: Live plant via Amazon · listing verified 15 Sep 2026
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