// SPECIES PROFILE · SHRUB · NATIVE

Atlantic nine-bark

Physocarpus opulifolius var. intermedius

Atlantic nine-bark (Physocarpus opulifolius var. intermedius) is a shrub in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–8a. Mature size 4'–10'. Blooms May–Jun.

// QUICK FACTS

Family: —
Group: shrub
Native range: Native to 36 U.S. states, including AL, AR, CO, CT, DC, DE…
USDA hardiness: Zones 2b–8a
Mature size: 4'–10'
Sun: Part shade
Water: Low · xeric
Bloom: May–Jun
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Atlantic nine-bark (Physocarpus opulifolius var. intermedius) — *Physocarpus opulifolius var. intermedius* — Atlantic nine-bark. Photo via iNaturalist — (c) Senna Bryce Robeson, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Atlantic nine-bark (Physocarpus opulifolius var. intermedius) is a shrub in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–8a. Mature size 4'–10'. Blooms May–Jun. Low water use makes it a strong candidate for xeric and drought-conscious plantings.

Why it's on this list: native species profile. Native-range data from the Lady Bird Johnson Wildflower Center (NPIN), cross-checked against iNaturalist observations. Part of Rooted Revival's regional native plant catalog — true natives for Oklahoma, Arkansas, Missouri and Kansas.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In the same native range, atlantic nine-bark pairs naturally with: American Plum (Prunus americana), False Indigo Bush (Amorpha fruticosa), Smooth Sumac (Rhus glabra), Ninebark (Physocarpus opulifolius).