PlantsAgeratina→White Snakeroot (Ageratina altissima 'Chocolate')

Botanical names:
Ageratina altissima Accepted
Eupatorium rugosum Synonym

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Partial or Dappled Shade
Water Preferences: Wet Mesic
Dry Mesic
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone: Zone 9b
Plant Height: 3 to 5 feet (.9-1.5m)
Plant Spread: 2 to 3 feet (61-91cm)
Leaves: Unusual foliage color
Fruit: Showy
Flowers: Showy
Flower Color: White
Bloom Size: Under 1"
Flower Time: Late summer or early fall
Underground structures: Rhizome
Wildlife Attractant: Bees
Propagation: Seeds: Will not come true from seed
Awards and Recognitions: Other: 2004 Great Plant Picks Award Winner

Zone 9b.

This plant is tagged in:
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Posted by gardengus (Indiana Zone 5b) on Jun 3, 2013 6:41 PM

I purchased this plant some years ago because of the name Chocolate . The leaves do have an interesting color in the spring but I don't feel the flowers are worth the space the plant takes up in the flower garden. It seems to be a long lived perennial 8+ in my garden
The flowers are very attractive to insects and bloom late when there is less in the garden to feed on.

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Posted by Bonehead (Planet Earth - Zone 8b) on Feb 24, 2018 10:12 AM

Tidy plant with pretty brownish leaves and red stems. A good accent plant. A decoction of roots was used for snakebites. Some sources report that it can spread aggressively through rhizomes or reseeding and, but I have not found that to be a problem in the Pacific NW.

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Posted by eclayne (Pioneer Valley south, MA, USA - Zone 6a) on May 11, 2014 3:59 PM

Throughout late spring and summer I consider 'Chocolate' a good mid to back garden foliage plant. It has a nice rounded habit with new leaves emerging purple brown (matching the stems) and eventually turning green. When most of the garden is shutting down in early fall the dense mass of small white flowers brings a smile on. Bees love it and so do I. It's done well in dappled shade with no special attention.

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Posted by Catmint20906 (PNW WA half hour south of Olympia - Zone 8a) on Aug 22, 2014 1:04 PM

Ageratina 'Chocolate' is a pollinator magnet. It is a nectar source for Monarchs and other butterflies and is a Monarch Way Station plant.

This plant is also a nectar source for bees, and supports conservation biological control by attracting beneficial insects to the garden. Beneficial insects feed on a variety of common garden pests.

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Plant Events from our members
Catmint20906 On September 13, 2015 Bloomed
Catmint20906 On August 20, 2014 Bloomed
christine2 On May 5, 2017 Transplanted
North House moved to Pool
lovesblooms On March 1, 2020 Seeds sown
winter sow
lovesblooms On February 24, 2018 Seeds sown
winter sown
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
What's Blooming - Photos and Chat. by NJBob Oct 25, 2021 5:03 AM 5,038
Is this a weed? by jshank83 Jun 27, 2017 7:49 PM 3
Blue Mistflower (Conoclinium coelestinum) by Catmint20906 Jun 4, 2015 6:17 PM 29
Chocolate Joy Pye by jvdubb Jan 4, 2015 5:06 PM 4
Garden Chat and Photos by Catmint20906 Jan 2, 2016 11:47 AM 3,043
Just a guess. by HamiltonSquare Jul 9, 2014 8:31 PM 2
Some Favorites Blooming Now by clintbrown Nov 20, 2012 9:42 PM 362

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