wild plant booms October blue small flowers (ID complete)

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Date Photo Taken: October 11, 2010
Location: Alpharetta, GA
Posted By: rexwoman


This plant is in my front yard. Comes back year after year larger and fuller. Gets plenty of sun. Blooms in October. What is it?


  1. Dub Strickland Unregistered says:

    Can’t tell from the picture but I get the impression this is kind of a bedding plant. Looks like Hardy Ageratum or Mist Flower.

    October 12th, 2010 at 12:04 pm
  2. Mona Unregistered says:

    Wild ageratum maybe? (Just a guess)

    October 12th, 2010 at 1:14 pm
  3. Christine Hurst Unregistered says:

    I have the same stuff. I love it- it keeps perpetuating itself thru the landscape. My Mom told me the name, and I THINK I remember it as beng agerathum…but I may be confusing it with something else…

    October 12th, 2010 at 1:20 pm
  4. mari Unregistered says:

    (Ageratum houstonianum) gone to weed, it can take over the garden…I found that I could freely uproot the undesirable ones before they go to seed in the fall

    October 12th, 2010 at 1:43 pm
  5. Kitty Unregistered says:

    Native Ageratum – I love it and have loads of it throughout my garden – multiplies through underground runners. It is a Perennial here in the south – grows up to 2’in height and is very drought tolerant.

    October 12th, 2010 at 2:54 pm
  6. Debra Unregistered says:

    Thank you!

    October 12th, 2010 at 5:50 pm
  7. Southern Garden Coach Flower Fanatic says:

    It’s Latin name is Conoclinium (formerly known as Eupatorium) coelestinum.

    October 12th, 2010 at 10:48 pm
  8. Norma Flower Fanatic says:

    I agree with most of the others; it sure looks like some type of ageratum. I’ve never heard of a perennial ageratum, but I’m sure gonna check it out as I LOVE the plant.

    October 15th, 2010 at 3:12 pm
  9. Drew Unregistered says:

    It’s Blue Mistflower (Conoclinium coelestinum formerly Eupatorium coelestinum). It’s kind of weedy, but we encourage it in our yard for the beautiful Fall color.

    September 17th, 2014 at 10:04 am
  10. amy halpern Unregistered says:

    thats ageratum….very invasive but pretty

    September 17th, 2014 at 10:13 am
  11. Scott Ditzel Unregistered says:

    There are a lot of Wild ageratums that grow all over the State

    September 17th, 2014 at 11:13 am
  12. Woody Driskill Unregistered says:

    It is some type of mint. invasive – grows voluntarily here and there, mostly in lawns and gardens. Good fall color, though.

    September 17th, 2014 at 1:42 pm
  13. kae Unregistered says:

    ageratum- mine is perennial in zone 8b

    September 17th, 2014 at 4:39 pm
  14. joan Unregistered says:

    My mom brought her blue mist plant from Illinois to Wisconsin to Florida. She gave me some here in georgia. It blooms from June thru September.

    September 17th, 2014 at 8:26 pm
  15. Rachel Parris Unregistered says:

    It looks like Joe Pye Weed…I have it in my garden, in pots, because it can be invasive. I have white and blue…bees love it.

    September 19th, 2014 at 11:31 pm

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