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Which Adenophora Are Non-Invasive?

12 years ago

I received a piece of Lady Bells in trade a couple of years ago and was assured that this particular vareity was not the invasive one. It grew and bloomed that year. Last year, I think it was overshadowed by a hosta that needs divided and hardy geranium Rozanne, and it did not bloom. I didn't see it among all the greenery and thought I had lost it. I see the leaves coming up now and I will be moving it, so it can get more sun. I want to make a tag for it, and have forgotten the variety. If I hear the name of it, I will probably remember what it was. Thanks,

Linda

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Comments (8)

aachenelf z5 Mpls
12 years ago
Maybe Adenophora confusa? This one spreads for me, but not terribly. I always cut it back after blooming, so it never has a chance to reseed.

Kevin
aftermidnight Zone7b B.C. Canada
12 years ago
The culprit is that nasty lookalike Campanula rapunculoides which I have been battling for over 30 years, you leave one bit of root and it comes back with a vengeance. Being they look so much alike sometimes these plants get mislabelled. The link below tells you how to tell the difference.

Here is a link that might be useful: Adenophora/Campanula
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wieslaw59
12 years ago
Actually, you cannot confuse Campanula rapunculoides with Adenophora liliifolia. The lady who wrote the article has spread unnecessary horror. Campanula rapunculoides is VERY EASY to recognize as all the flowers hang on the same side of the stem(unlike with Adenophora liliifolia). See the link below.
Secondly, there are several adenophoras that are just as bad(both running and mad seeders if allowed)

Here is a link that might be useful: Campanula rapunculoides
User
12 years ago
adenophora triphylla is rather lovely.
aftermidnight Zone7b B.C. Canada
12 years ago
Wieslaw thanks for that bit of information, a nice easy way to tell the difference. Can you tell us which of the Adenophora we should be wary of and which ones are not a problem?
wieslaw59
12 years ago
Aftermidnight, I do not know Adenophoras well as I keep away from them, simply because nearly nobody in the world of Horticulture seems to know them well enough. But I can say that majority of the pictures of Campanula rapunculoides that you can google is in fact some species of Adenophora. It applies to many pictures from England and US. I warn against a plant that has been released on the market with the name Campanula sarmatica Hemelstraling. It has nothing to do with Campanula sarmatica but is a RUNNING adenophora. I can see a big German nursery is now selling it with the name Adenophora confusa Hemelstraling. If this is really an Adenophora confusa, then it is DEFINITELY NOT well behaved.
linlily
Original Author
12 years ago
I think the plant I was sent might be Adenophora confusa. That sounds like the right name.

Thank you to everyone for your help and comments.
Linda
prairiemoon2 z6b MA
12 years ago
I have one of these in the garden. Not sure if it is the Adenophora or Campanula. Whatever it is, it was here when we moved in over 30 years ago and I am still trying to get rid of it. Digging it out, seems entirely useless, because every little bit of root will resprout. I've tried smothering it with layers of cardboard and bark mulch and it grows right under it and actually 'lifts' the cardboard. I have some growing in a crack at the base of a set of cement steps and last year I tried cutting all the foliage to the ground and must have repeated that about 10 times over the summer and it is still there, just as vigorous as ever.

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