Usually the weedy ones are hitchhikers in the pots of other plants.
You need to be more specific, its a rather large genus.
Try looking here.
http://www.cactus-mall.com/nursery/nlistuk.html
"batesy" wrote in message
...
Hi,
Can anyone tell me where I can buy Bryophyllum/Kalanchoe in the UK
Thanks batesy
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batesy