Rob's comment about Kalmia latifolia (to my last post) got me wondering about whether it's used much in England. I would have thought it would have accompanied all of our native Eastern U.S. heath shrubs like Rhododendron across the pond.
But he's an excellent gardener and interested in plants in general (check out his blog at Sustainable Garden.)
The international trade in plants (which has gone on for centuries) is a fascinating tale, with results both good and bad. Many of our Southeastern U.S. natives, such as Southern Magnolia (Magnolia grandiflora), are treasured landscape plants through the world. And many aren't pesky where they're planted (I wish that were true of all of them).
So, I was interested to see that Kalmia latifolia is listed on the RHS website plant listing, but I didn't get much (in terms of good hits) on 'Kalmia latifolia in England'
I'm thinking that since it normally grows best in acidic soil habitats that maybe it's not so happy in more neutral or alkaline soils. Ditto for Rhododendron, too, but perhaps they're not as particular?