Mistflower is in bloom, one of my last perennials to bloom

Not heard of this plant before. It's very pretty - and my favourite colour.

What a nice color they add to the landscape...

That is a beautiful plant and shot. Do you know the name of the variety by any chance?

I had to look up, this looks so much like the ageratum I grew this year, though that is not a perenial. Very beautiful, and it looks relatively tall.

GT , you were very close to being right, one of it's common names is hardy ageratum. These get to be about 3 feet tall, and bloom for about 4 weeks from late Sept, till late Oct. here in North Carolina. Garcan, it's botanical name now is Conoclinium coelestinum. I've grown up knowing it as Eupatorium coelestinum, it's one of those plants that they can't decide what class it belongs in..lol. Either way, I believe it's hardy to zone 5, so you may be able to grow it yourself. It is a bit on the agressive side, but most of my plants are...lol. They require alot less petting that way,and these require no petting at all !

Thanks Flcrazy. I was Googling around using the word 'Mistflower', and was quite confused by the the three names 'Conoclinium' and 'Eupatorium' and 'Ageratum' appearing here and there. Now your explanation makes it all clear. I was also having a hard time trying to find out the hardiness. Now, knowing it is hardy to Zone 5, I am eager to add it to my 'Hit List' for next spring. Can you please elaborate a bit more on its 'aggressiveness'. Does it have an invasive spreading habit or self sow indiscriminately?

Garcan, mine spreads by the roots. It forms a thick matted type root system about an inch under the ground. This plant has been used for soil erosion purposes because of it's tight matting roots. It stays in the area where I planted it, but the clump more than doubles in size every year if I don't dig any of it up. It's not that hard to remove, the roots aren't deep, I use a hand spade and run it under the surface of the soil and pull out what I don't want. It looks like I've dug up an old rug that's been buried under the ground...lol.
Most everyone has at least one trouble spot in the garden where they just can't seem to get anything to live and grow, well that would be the perfect spot to plant this one. It will grow in solid clay soil in full sun and sparingly in dry, loam soil in shade. Just don't plant it in amended, 'perfect' loamy soil .

Flcrazy, Thanks for all these useful info. It sounds like all the positive attributes (flower, fall blooming, shade, clay soil, hardy etc.) far out weigh the one relatively easy to control spreading habit. I am in. Thanks again. I am also impressed by your detailed knowledge of your plant.

Zone five huh? Great ....it goes on the never ending list! wonderful colour.

Gosh....!!!! as far as I go reading the convey about the flowers and plants, as much scary I become, i don't know a thing about plants and flowers!!!!!
I'll be glad to limit my coments to the colors and how beautiful are the pictures.... hehehe,
I'll join Lori... wonderful color!!!