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PlantFiles: Hemp Dogbane, Indian Hemp
Apocynum cannabinum

Family: Apocynaceae (a-pos-ih-NAY-see-ee) (Info)
Genus: Apocynum (a-POS-ih-num) (Info)
Species: cannabinum (kan-na-BIN-um) (Info)

4 vendors have this plant for sale.

7 members have or want this plant for trade.


36-48 in. (90-120 cm)

24-36 in. (60-90 cm)

USDA Zone 1: below -45.6 C (-55 F)
USDA Zone 2a: to -45.5 C (-50 F)
USDA Zone 2b: to -42.7 C (-45 F)
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade

Seed is poisonous if ingested
Parts of plant are poisonous if ingested
All parts of plant are poisonous if ingested

Bloom Color:

Bloom Time:
Late Spring/Early Summer
Mid Summer


Other details:
May be a noxious weed or invasive

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:

Propagation Methods:
From seed; direct sow outdoors in fall
From seed; stratify if sowing indoors

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

Click thumbnail
to view:

By CaptMicha
Thumbnail #1 of Apocynum cannabinum by CaptMicha

By melody
Thumbnail #2 of Apocynum cannabinum by melody

By melody
Thumbnail #3 of Apocynum cannabinum by melody

By melody
Thumbnail #4 of Apocynum cannabinum by melody

By melody
Thumbnail #5 of Apocynum cannabinum by melody

By creekwalker
Thumbnail #6 of Apocynum cannabinum by creekwalker

By mgarr
Thumbnail #7 of Apocynum cannabinum by mgarr

There are a total of 12 photos.
Click here to view them all!


1 positive
3 neutrals
1 negative

Gardeners' Notes:

Positive annerem On Jun 15, 2013, annerem from Northern IL, IL (Zone 5a) wrote:

I got some of this from a friend's property but began yanking it after the bees didn't show any interest in it. I plant my native gardens for pollinators. NOW, I read that it's a host plant for Hummingbird Moths and Monarchs.

I'm giving it a positive for this reason. Of course, it's easy to grow :-) and it provides necessary hosts plants for some our most treasured wildlife species.

Neutral WUVIE On Apr 11, 2010, WUVIE from Hulbert, OK (Zone 7a) wrote:

This plant is not the best choice for fussy gardeners. It is a plant, it has a mission, and it travels quite well. In fact, it very much reminds me of the growth patterns of running bamboo. Many feet from the mother plant you will find shoots popping up here and there.

I don't mind it, I simply run over the unwanted with the lawn mower. Yes, it will grow back, but not worth getting terribly excited about.

Neutral frostweed On Nov 28, 2006, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

Hemp Dogbane Apocynum cannabinum is native to Texas and other States.

Neutral melody On Jan 23, 2005, melody from Benton, KY (Zone 7a) wrote:

All parts of this plant are poisionous, and it needs to be kept from livestock and children.

A common fence row plant, it thrives in sunny, overgrown locations.
It needs to be pulled out before it sets seed.

Negative CaptMicha On Nov 11, 2004, CaptMicha from Brookeville, MD (Zone 7a) wrote:

A fast spreading weed. Thrives in almost any spot but especially sunny and well drained soil.


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

Barling, Arkansas
Cordele, Georgia
Rockford, Illinois
Benton, Kentucky
Clermont, Kentucky
Danville, Kentucky
Elizabethtown, Kentucky
Frankfort, Kentucky
Georgetown, Kentucky
Henderson, Kentucky
Irvine, Kentucky
Jackson, Kentucky
Kuttawa, Kentucky
Louisville, Kentucky (3 reports)
Madisonville, Kentucky
Nicholasville, Kentucky
Brookeville, Maryland
Laurel, Maryland
Minneapolis, Minnesota
Cole Camp, Missouri
Protem, Missouri
Frenchtown, New Jersey
Mount Laurel, New Jersey
Glouster, Ohio
Hulbert, Oklahoma
Millersburg, Pennsylvania
Wilkes Barre, Pennsylvania
Herndon, Virginia

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