Photo by Melody

PlantFiles: Canadian Wood Nettle, Canadian Woodnettle, Kentucky Hemp, Wood Nettle
Laportea canadensis

Family: Urticaceae
Genus: Laportea (la-POR-tee-a) (Info)
Species: canadensis (ka-na-DEN-sis) (Info)

Synonym:Urticastrum divaricatum
Synonym:Urtica divaricata
Synonym:Urtica canadensis

2 members have or want this plant for trade.


24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

Unknown - Tell us

Sun Exposure:
Sun to Partial Shade

Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
Unknown - Tell us

Bloom Time:
Unknown - Tell us

Unknown - Tell us

Other details:
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:

Propagation Methods:
From seed; winter sow in vented containers, coldframe or unheated greenhouse

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By kittysue
Thumbnail #1 of Laportea canadensis by kittysue


No positives
No neutrals
1 negative

Gardeners' Notes:

Negative Malus2006 On May 29, 2008, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:

I wish I had a picture to share - this is a localized weed that mainly infects rich moist woodlands. They live in more shade than common nettle even thought common nettle would thrive in a garden in the shade. Their leaves are more wider but their sting is not any less worst.


This plant has been said to grow in the following regions:

Minneapolis, Minnesota
Fairborn, Ohio
Leesburg, Virginia

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