PlantsEupatoriums→Dog Fennel (Eupatorium capillifolium)

Common names:
Give a thumbs up Dog Fennel
Give a thumbs up Dogfennel

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Minimum cold hardiness: Zone 5b -26.1 °C (-15 °F) to -23.3 °C (-10 °F)
Maximum recommended zone: Zone 10b
Plant Height: 36 - 84 inches
Plant Spread: 12 - 24 inches
Leaves: Fragrant
Fruit: Showy
Flowers: Inconspicuous
Flower Color: White
Bloom Size: Under 1"
Flower Time: Late summer or early fall
Suitable Locations: Xeriscapic
Uses: Will Naturalize
Wildlife Attractant: Bees
Resistances: Deer Resistant
Rabbit Resistant
Propagation: Seeds: Self fertile
Sow in situ
Can handle transplanting
Propagation: Other methods: Cuttings: Tip
Pollinators: Various insects
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots


Photo gallery:

Posted by flaflwrgrl (North Fl. - Zone 8b) on May 6, 2012 5:35 PM

An extremely fast growing plant most often found in cow pastures, disturbed land & along roadsides. It has a quite pungent odor when touched & the odor will stay on your clothing or skin until you wash. It is not an especially unpleasant odor but not a sweet scent either.
CAUTION: This volunteers freely & most people consider this a highly invasive plant. It grows very aggressively.
It can be very pretty & graceful to look at with it's fine foliage.
When growing in cow pastures the cows eat around this plant because it contains liver-damaging pyrrolizidine alkaloids. This is why the scarlet bodied wasp moth, Cosmosoma myrodora, feed on Dogfennel; they store the toxins in it & that helps them ward off prey.

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Discussion Threads about this plant
Thread Title Last Reply Replies
dog fennel plant by CamposEliseos1959 Aug 15, 2019 2:53 AM 0
another mystery plant by johndforbes Jul 3, 2021 1:14 PM 12
id by radagastoff May 13, 2021 9:43 AM 3
bamboo? by lillys7 Nov 9, 2020 9:32 PM 6
Would like to kill all vegetation and start lawn again by punkin444 Sep 12, 2020 6:43 AM 37
Plant Identification by USAFRetired Aug 2, 2020 11:30 AM 3
What is the name of this plant? by jhg50185155 Jul 23, 2020 11:07 AM 2
Identity of this plant by ose Jul 1, 2020 11:42 AM 6
Can anybody identify this weed? by dimTim Aug 22, 2019 7:56 AM 3
Need an ID on this fern like plant by beckygardener Aug 2, 2019 7:00 AM 6
Anyone know what this plant is? Help? by Lilpancho1 May 5, 2019 4:37 PM 1

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