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Bog Hemp Boehmeria cylindrica

Other Common Name(s):

Description

False Nettle is a perennial plant that is native to Canada and North America.  It looks like stinging nettles Urtica dioica or Laportea canadensis but lacks the irrigating hairs on its opposite leaves.  It prefers the light shade and moist rich loamy soil.  

See this plant in the following landscape:
Cultivars / Varieties:
  • Boehmeria cylindrica var. cylindrica
  • Boehmeria cylindrica var. drummondiana
Boehmeria cylindrica var. cylindrica, Boehmeria cylindrica var. drummondiana
Tags:
#wildlife plant#small mammals#wind pollinated#larval host plant#food source herbage#butterfly friendly#pollinator garden#question mark butterfly#eastern comma butterfly#red admiral butterfly
 
Cultivars / Varieties:
  • Boehmeria cylindrica var. cylindrica
  • Boehmeria cylindrica var. drummondiana
Boehmeria cylindrica var. cylindrica, Boehmeria cylindrica var. drummondiana
Tags:
#wildlife plant#small mammals#wind pollinated#larval host plant#food source herbage#butterfly friendly#pollinator garden#question mark butterfly#eastern comma butterfly#red admiral butterfly
  • Attributes:
    Genus:
    Boehmeria
    Species:
    cylindrica
    Family:
    Urticaceae
    Life Cycle:
    Perennial
    Country Or Region Of Origin:
    Canada, central and eastern U.S.A.
    Wildlife Value:
    This is a larval host plant that supports Eastern Comma (Polygonia comma), Red Admiral (Vanessa atalanta), and Question Mark Butterfly (Polygonia interrogationis) caterpillars. Questionmark butterflies have an interesting life cycles: overwintered adult Question Mark butterflies lay eggs from spring until the end of May. These will appear as summer adults from May-September, laying eggs that then develop into the winter adult form. The winter adults appear in late August and shelter for the winter starting the cycle all over again. Adult Question Mark butterflies feed on rotting fruit, tree sap, dung, and carrion only visiting flowers for feeding when absolutely necessary. Fly larva (Neolasioptera boehmeriae) form spindle shaped galls on the leaves. Mammals browse the foliage of this plant.
  • Whole Plant Traits:
    Plant Type:
    Native Plant
  • Cultural Conditions:
    Light:
    Deep shade (Less than 2 hours to no direct sunlight)
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Drainage:
    Moist
  • Flowers:
    Flower Color:
    Green
    White
    Flower Inflorescence:
    Insignificant
    Spike
    Flower Bloom Time:
    Fall
    Summer
    Flower Size:
    < 1 inch
    Flower Description:
    Mid-summer to early fall tiny greenish white apetalous wind pollinated flowers appear. They form head-like clusters in upward pointing spikes that are 1/2" to 3" long found in the upper leaf axils. Plants are usually dioecous with male and female plants separate.
  • Leaves:
    Leaf Color:
    Green
    Leaf Type:
    Simple
    Leaf Arrangement:
    Opposite
    Leaf Shape:
    Lanceolate
    Ovate
    Leaf Margin:
    Dentate
    Serrate
    Hairs Present:
    No
    Leaf Length:
    3-6 inches
    Leaf Width:
    1-3 inches
    Leaf Description:
    Opposite (occasionally alternate) leaves with coarsly serrate margins 4" long and 2 1/2" wide with long thin petioles. There is a central vein and two parallel secondary veins. Does not have stinging hairs like other nettles.
  • Stem:
    Stem Color:
    Green
    Stem Is Aromatic:
    No
    Stem Cross Section:
    Angular
    Stem Surface:
    Hairy (pubescent)
    Stem Description:
    Light green round or 4 angled smooth to slightly pubecent.
  • Landscape:
    Landscape Theme:
    Butterfly Garden
    Pollinator Garden
    Attracts:
    Butterflies
    Pollinators
    Small Mammals