Hardiness: 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)
I live next to a 10-acre lake in Durham, NC. I first noticed Mikania scadens growing on an alder along the shore roughly 4 years go and decided to let it grow to see what type of flower it would produce. I know view my decision to let it go to seed as a major mistake. It is now growing in multiple wet areas along the shore as well as in dry soils elsewhere in the neighborhood. It grows very rapidly in moist soil. Within a month it can go from a sprig to multiple runners 4-6 ft long. I've come to view it as aquatic kudzu and have been hand pulling and trying to remove it roots (a fiberous mat growing in the water). I ended up at Dave's Garden after googling looking for suggestion for control. HELP if you have any experience!
On Nov 20, 2011, AnaM149 from Sanford, FL (Zone 9b) wrote:
This one came out of nowhere and it sure grows fast. It took me a few days to figure out what it was. Thankfully, the winds have been out of the East so that the seeds are all blowing to the neighbors' yards and I shouldn't have too many sprouting soon. It smells pretty and sweet, the critters love it attracting the wasp moth, too. If anything, I'll deadhead it until I get tired of it. Still too early to think negative or just neutral.
On Sep 27, 2010, LadySmith94 from Roby, TX (Zone 7b) wrote:
While I find this plant quite lovely, it is growing wild in my yard- covering shrubs and rosebushes and growing on a fence where it is not wanted. I have pulled some of it out and will be removing more. I may try to put it in an area that it would be wanted. I do not know how it came to be here. It was here when I moved here.
On Dec 24, 2009, Beach_Barbie from Kure Beach, NC (Zone 9a) wrote:
i've been growing this for several years. The one I originally planted still comes back every year, as do some volunteers. I don't find it to be invasive, I just pull up the ones that start where I don't want them and the others, I've let grow.
On Sep 25, 2004, MotherNature4 from Bartow, FL (Zone 9a) wrote:
M. scandens festoons large shrumbs and trees with clouds of smoky white flowers in autumn. It is found in the swamps & sunny, wet areas throughout most of the peninsula of Florida.
This plant has been said to grow in the following regions:
Indian Springs Village, Alabama Bartow, Florida Big Pine Key, Florida Crestview, Florida Melrose Park, Florida North De Land, Florida Oldsmar, Florida Panama City Beach, Florida Sanford, Florida Cedar Rapids, Iowa Green Haven, Maryland Brewster, New York New York, New York Durham, North Carolina Kure Beach, North Carolina Evendale, Ohio Summerville, South Carolina Beaumont, Texas Dike, Texas Houston, Texas Wells Branch, Texas