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Height: 4-6 ft. (1.2-1.8 m) 6-8 ft. (1.8-2.4 m) 8-10 ft. (2.4-3 m)
Spacing: 6-8 ft. (1.8-2.4 m)
Hardiness: 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)
Sun Exposure: Full Sun
Bloom Color: White/Near White
Bloom Time: Mid Summer Late Summer/Early Fall Mid Fall
Foliage: Herbaceous Aromatic
Other details: May be a noxious weed or invasive This plant is attractive to bees, butterflies and/or birds Drought-tolerant; suitable for xeriscaping Average Water Needs; Water regularly; do not overwater Self-sows freely; deadhead if you do not want volunteer seedlings next season
On Jun 14, 2012, snorkelpop from San Diego, CA (Zone 10b) wrote:
I don't understand a few things about the specifications you show, but let me just ask you about one set. How am I supposed to interpret your height chart? Is this just another way of saying that the height of this plant varies from 4' to 10'? That really doesn't narrow it down very much does it? The same applies to your hardiness figures. This is really incomprehensible to me.
very graceful native virginia plant, nice tall background plant, in my 15 acres of fields which i am very familiar with i've only found 4 plants growing, so here in good topsoil fields it's not being invasive.
On Apr 22, 2010, edys1222 from Shawnee Mission, KS wrote:
I love this plant! In Kansas City it is not at all invasive. I do wish it had more staying power...it seems to want to grow only 2 years here before it dies back completely. The 1st year in my garden it reached 7' tall and looked absolutely beautiful.
On Jul 12, 2009, Turtlegaby from Decatur, AL (Zone 8a) wrote:
I love this plant. Years ago it showed up in my yard voluntarily and ever since it grew and grew and more seedlings every year everywhere. DG ID forum helped me to identify it. It makes quite a statement, because it grows very fast and tall (up to 7 feet) and looks gracious with it's fine soft leaves. I collect all the seedlings that pop up each year and plant them in containers. I also like the smell of the roots. If you don't want the seedlings, they are easily to pull out, but as a background plant in a nice flower bed, I would give it a chance.
On Mar 27, 2009, jomoncon from (Jo-Ann) New Orleans, LA (Zone 9a) wrote:
This plant started showing up this year in my garden as a weed. I've been pulling it up when it's still small, but some have grown to about a foot & are more difficult to pull. They seem to love being in my landscape roses. Or maybe I don't get them when they're small in that bed since the roses have so many thorns.
On Jul 17, 2006, gooley from Hawthorne, FL (Zone 8b) wrote:
It's not that hard to control... IF you mow land regularly. If not, it grows fast and gives you woody stems with feathery leaves and branches, and sort of a sticky feel to them...leave a stink on you (not acutely unpleasant, though I don't think I'd use it for incense) when you brush against them, more especially if you try to yank them up. You can get 6 foot stems in a few months in my climate if you don't mow. Roundup and such kill it nicely -- if you spray thoroughly; otherwise, especially in an established clump, enough root mass may survive to send up new stems. Digging up the whole clump in winter also works, but again it's easy to miss a bit. Mow, mow, mow and the grass might even choke it out for you; leave it alone and you soon get a patch of ground that's hard to walk through. Colonizes any bare spot, neglected pot with a plant in it, garden bed, you name it.
On May 12, 2006, Windy from Belleville , IL (Zone 6b) wrote:
I find that this plant which grew of its own accord is sort of pretty to look at.
In my zone7a it does not appear to be invasive, but the plants that are here have strong persistant roots that will thrive even if tilled.
I like the impressive size and am glad to finally have identified it through the identification forum on Davesgarden.
On Sep 7, 2005, trackinsand from mid central, FL (Zone 9a) wrote:
i understand that it is a noxious weed and invasive, however, i let a big stand of it grow in the fork of my driveway just to see what it would do. it's now september and it's 7' tall and quite dramatic. it has a breezy, lacy look and when it's done doing it's thing, we can mow it down. we certainly have not watered or fed or done anything to it and never will! debi
On Oct 8, 2004, Farmerdill from Augusta, GA (Zone 8a) wrote:
An interesting plant. Seems to invade borders between wooded areas and open fields. Here it is easily controlled by cultivation or mowing. A stand of it is quite showy at first frost, makes it look like a dusting of snow,
On Jul 29, 2004, onalee from Brooksville, FL (Zone 9a) wrote:
RUN FOR YOUR LIFE! Dog Fennel with take over your yard, your pasture, your neighbor's yard and the field down the street! Extremely hard to get rid of and spreads rapidly - and nothing seems to eat it.
This plant has been said to grow in the following regions:
Decatur, Alabama Enterprise, Alabama Luverne, Alabama Midland City, Alabama Vincent, Alabama Ashdown, Arkansas Apopka, Florida Bartow, Florida Cheval, Florida Combee Settlement, Florida Hampton, Florida Hawthorne, Florida Kissimmee, Florida Ocala, Florida Sanford, Florida Sebring, Florida Spring Hill, Florida Trenton, Florida Augusta, Georgia New Orleans, Louisiana Mount Pleasant, Michigan Marietta, Mississippi Lincoln, Nebraska Chapel Hill, North Carolina Campobello, South Carolina Cope, South Carolina Greer, South Carolina Dandridge, Tennessee Walling, Tennessee Walterhill, Tennessee Dalworthington Gardens, Texas Galveston, Texas Scenic Oaks, Texas Fairview Beach, Virginia Temperanceville, Virginia Meadowbrook, West Virginia Parkersburg, West Virginia