Roundleaf Greenbrier Picture

Groups of up to 20 small green/white flowers from June to July produce dark blue black berries with a waxy bloom that persist through winter and are an important food source for overwintering songbirds, dioecious (male and female flowers produced on separate plants), shiny 3 to 5 veined leaves are 2-6 inch long and often almost round, red fall color, climbs by tendrils, almost all stems are armed with large sturdy thorns, left to its own devices and allowed to spread - it will form a thorny impenetrable thicket that is good wildlife cover, can be trained along a fence or trellis (but root suckers must be managed), tolerant of a wide range of soils (clay, sand, gravel/rocky), flowers are a nectar and pollen source for native bees, host plant to several moths including the Curve-lined Owlet (Phyprosopus callitrichoides).

Dry To Moist
Sun To Shade
up to 20 foot long
Plant Hardiness Zones: 5a-9a

Native Range: NS west across s. ON to MN & SC, south to n Fl and e TX

Germination - Moderately Difficult: Light physical scarification before planting. Germination may take 2 months or more.

Roundleaf Greenbrier in a 3.5 inch pot $9.75
Roundleaf Greenbrier Seed Packet $4.00

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Roundleaf Greenbrier Drawing

Roundleaf Greenbrier Picture