 |
Conoclinium coelestinum |
 |
| Synonym(s) |
Eupatorium coelestinum |
| Common name |
hardy ageratum; mistflower |
| Family |
asteraceae |
| Life cycle |
perennial (Z4-11) |
| Flowers |
blue (late summer-fall) |
| Size |
2' |
| Light |
sun-part shade |
| Cultural notes |
ordinary garden soil |
The clear blue flowers, which arrive in late summer, are most welcome in our summer-weary garden. For years I wondered why this plant is not more popular – it would spread a little by its roots, but wasn't too aggressive in our garden. In recent years, however, I have come to appreciate how it can take over in the border. It makes a tangle of brittle shallow roots; while they aren't hard to pull up, some are always left behind, so it is difficult to weed out. So in most areas of our garden, this is now unwelcome – but I still allow it to do its thing in the side garden, where I first introduced it.
|
We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston. One or more images of this plant are included in my stock photo catalog About my plant portraits
PlantLinks to other web pages about Conoclinium coelestinum
Visitors to this page have left the following comments| pd wythe, Darwin Mn | Aug 28, 2009 | I started this from seed 3 years ago and so far it is not Z4 hardy as they always die back. But it does re-seed itself copiously each Spring so I am not at loss for these nice little Fall plants. The migrating butterflies really love them. |
| Sherry | Aug 31, 2011 | Thanks for the details on Eupatorium coelestinum. I have it in my garden and love the wonderful blue flowers this time of the year. |
I welcome comments about my web pages; feel free to use the form below to
leave feedback about this particular page. For the benefit of other visitors
to these pages, I will list any relevant comments you leave, and if
appropriate, I will update my page to correct mis-information. Faced with an
ever-increasing onslaught of spam, I'm forced to discard any comments including
html markups. Please submit your comment as plain text. If you have a
comment about the website as a whole, please leave it in my
guestbook. If you
have a question that needs a personal response, please
e-mail me.
|
