Shrubby Boneset

topic posted Wed, March 1, 2006 - 2:54 PM by  DrZ
I've been doing some research on medicinal plants native to my area (central Texas), and have run into some trouble locating info on this plant. The latin name is Eupatorium havanense and it is sometimes also listed as Ageratina havanensis.

Most of the other Eupatoria are medicinal, especially Eupatorium perfoliatum (Boneset). Havanense also feels medicinal to me, so I'm inclined to think it has some use. However, a closely related species, Eupatorium wrightii, has been reported to cause nearly instant death in cattle, so I'm a little hesitant to experiment with havanense until I can get some more information.

Anybody know anything about this plant? Any help at all would be greatly appreciated.
posted by:
offline DrZ
  • Re: Shrubby Boneset

    Fri, March 17, 2006 - 1:02 AM
    Hi DrZ:

    Heres what I have in my files of indengenous ornamentals of Texas. If I run across anything else, I'll pass it on. You might do a meta search of its other names.



    Fragrant Mist Flower, Shrubby Boneset, Eupatorium, Boneset, Thoroughwort, Barba de Viejo
    Eupatorium havanense (Ageratina havanensis, E. ageratifolium)

    Asteraceae (Compsitae)

    An open shrub with slender branches that can reach six feet tall, fragrant mist flower explodes in the fall with masses of white, fuzzy, very fragrant flowers that act as a magnet to hummingbirds, butterflies, and a plethora of other insects. It is found on limestone hills and rocky ravines in the Edwards Plateau, Trans-Pecos and into Mexico. The light green, triangular-shaped leaves are 1 to 3 inches long and have wavy edges. Like E. wrightii, it is more tolerant of dry conditions than are most Eupatoriums, although it will tolerate poorly drained areas as well. It grows in partly shaded to mostly sunny sites, but will bloom more profusely with more sun. Fragrant mist flower makes a showy fall plant in the garden, or can be used massed as an understory or edge plant in more naturalized sites. Heavy shearing in the winter will promote a denser shape and more flowers the following year, since the long-lasting blooms appear only on new wood.

    Plant Habit or Use: medium shrub

    Exposure: sun
    partial sun

    Flower Color: white

    Blooming Period: fall

    Fruit Characteristics: five-angled achene

    Height: 2 to 6 feet

    Width: 2 to 6 feet

    Plant Character: deciduous

    Heat Tolerance: high

    Water Requirements:

    Soil Requirements: alkaline

    USDA Hardiness Zone: 8

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