Hemp Dogbane, Indian Hemp

Apocynumcannabinum

Family
Apocynaceae (a-pos-ih-NAY-see-ee)
Genus
Apocynum (a-POS-ih-num)
Species
cannabinum (kan-na-BIN-um)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage
Herbaceous
Textured
Height
36-48 in. (90-120 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
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)
Danger
Seed is poisonous if ingested
Parts of plant are poisonous if ingested
All parts of plant are poisonous if ingested
Bloom Color
Cream/Tan
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Perennials
Water Requirements
Foliage Color
Blue-Green
Where to Grow
Bloom Characteristics
Bloom Size
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
Non-patented
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
Regional

This plant is said to grow outdoors 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

Windsor, Missouri

Frenchtown, New Jersey

Mount Laurel, New Jersey

Glouster, Ohio

Hulbert, Oklahoma

Bethlehem, Pennsylvania

Birdsboro, Pennsylvania

Millersburg, Pennsylvania

Wilkes Barre, Pennsylvania

Herndon, Virginia

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Featured Videos

Gardener's Notes:

2
positives
3
neutrals
1
negative
Sort By:
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R
Downingtown, PA | July 2015 | positive

It is one of the native wildflowers that survives in most any American meadow after European settlement brought a good number of European...Read More

A
Northern IL, IL (Zone 5a) | June 2013 | positive

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...Read More

W
W
Hulbert, OK (Zone 7a) | April 2010 | neutral

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 ...Read More

F
Josephine, Arlington, TX (Zone 8a) | November 2006 | neutral

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

M
M
Benton, KY (Zone 7a) | January 2005 | neutral

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

A common fence row plant, it ...Read More

C
Brookeville, MD (Zone 7a) | November 2004 | negative

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

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