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Hemp Agrimony 'Plenum'

Eupatorium cannabinum

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Eupatorium (yoo-puh-TOR-ee-um) (Info)
Species: cannabinum (kan-na-BIN-um) (Info)
Cultivar: Plenum

Category:

Perennials

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun

Sun to Partial Shade

Foliage:

Herbaceous

Foliage Color:

Unknown - Tell us

Height:

36-48 in. (90-120 cm)

Spacing:

24-36 in. (60-90 cm)

Hardiness:

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)

Where to Grow:

Unknown - Tell us

Danger:

Unknown - Tell us

Bloom Color:

Fuchsia (red-purple)

Medium Purple

Bloom Characteristics:

Unknown - Tell us

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Summer

Late Summer/Early Fall

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Regional

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

Cincinnati, Ohio

Gardeners' Notes:

2
positives
0
neutrals
0
negatives
RatingContent
Positive

On Sep 16, 2011, CLScott from Calgary,
Canada wrote:

This is growing in Calgary through two minus 30 winters.
We are zone 3, but the last two winters were zone 4 winters.

Positive

On Oct 2, 2004, henryr10 from Cincinnati, OH (Zone 6b) wrote:

This is a double flowered version of the European standard Hemp Agrimony.
The bloom color is a mauve-purple and the flower heads are much tighter and fuller than the standard.
They remind me of Sedum stonecrop in character.

We planted this in early Fall 2003.
It was acquired as a ragged half dead plant in a gallon pot and was part of a Fall closeout sale.
It was planted and basically forgotten.
By late July it reached 4' tall, started blooming and could no longer be ignored.

A beautiful long bloomer that sooo far is very well behaved.

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