Re: native prairie plants
gardenchat@hort.net
  • Subject: Re: native prairie plants
  • From: C* C* <c*@comcast.net>
  • Date: Sun, 16 May 2010 20:52:07 -0500
No. I have had mine for 5 -6 years, and have yet to see any spread at all. As for Ironweed, I think it would depend what part of the country you are from - there are eastern and prairie species. The ones I am familiar with are 4+ feet tall with 2 ft spread, and purple flowers. 
Cathy, west central IL, z5b

On May 16, 2010, at 3:36 PM, Kitty wrote:
I picked up a couple of plants at a local nursery. Prairie Smoke, Geum triflorum, I was vaguely familiar with because I remember Donna talking about starting it in a greenhouse several years ago. Pretty thing. I note that it spreads by rhizomes - is it a fast spreader?
The other one was in a small pot and labeled Ironweed. Though I know that it is a Vernonia, I don't know which species. Can anyone tell me which species would MOST commonly use the name Ironweed? I'd like to get some idea of ultimate size before planting it. 
Kitty
neIN, Zone 5
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