PlantsBoehmeria→Smallspike False Nettle (Boehmeria cylindrica)

Common names:
Give a thumbs up Smallspike False Nettle
Give a thumbs up False Nettle
Give a thumbs up Bog Hemp

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Wet Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone: Zone 9b
Plant Height: 2-4 feet
Plant Spread: 1-3 feet
Leaves: Deciduous
Other: Host plant for Comma, Question Mark, & Red Admiral butterflies
Flowers: Inconspicuous
Flower Color: Green
Bloom Size: Under 1"
Flower Time: Summer
Late summer or early fall
Underground structures: Rhizome
Suitable Locations: Bog gardening
Uses: Will Naturalize
Wildlife Attractant: Butterflies
Propagation: Seeds: Self fertile
Sow in situ
Can handle transplanting
Pollinators: Wind
Miscellaneous: Monoecious
Conservation status: Least Concern (LC)

Conservation status:
Conservation status: Least Concern

Photo gallery:

Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Oct 2, 2020 6:55 AM

This False Nettle is very similar to the true Stinging Nettles, but does not have any stinging hairs. It is a common plant, native to New Brunswick-Southern Ontario & Quebec down into southern Florida to south-central Texas up through eastern Oklahoma & Kansas & Nebraska to north-central Minnesota, plus a few spots in the Southwest of the US in moist woodlands and bottomlands. It is also native to parts of Central & South America and the West Indies. The leaves are usually opposite. It is usually dioecious with the male flowers and female flowers on separate plants. The flowers are tiny, greenish-white to white without petals in spike-like clusters from the leaf axils. The male flowers are in bunches along the spike-like inflorescence while the female flowers are continuous along the spike-like clusters. The flowers are wind pollinated. The caterpillars of a number of moths and butterflies feed on the foliage so that birds and other animals can feed on the larvae.

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Discussion Threads about this plant
Thread Title Last Reply Replies
Can someone help me identify this weed by Helmswood Apr 23, 2019 6:59 AM 7
April 2016 Butterflies, Moths & Larva by mellielong May 15, 2016 4:43 PM 316
February 2016 Butterflies, Moths & Larva by mellielong Mar 1, 2016 10:56 AM 78
Urtica; for ID by Chillybean Aug 1, 2015 12:27 PM 19
Is this stinging nettle? Or catnip? by PAgirl63 May 27, 2015 11:02 AM 28
From a plant swap by greene Aug 7, 2014 3:18 PM 7

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