I've got some waiting to be re-homed in my damp dell area. It was growing in wet gravel at the foot of a drystone wall right by what was the well that used to supply the house. Suppose that counts as moist but well-drained?
Lovely looking long flowering plant. Grew quite tall under the Canna, heavy rain storm ment I had to make a quick support for the rest of the year. First picture was beginning of July. Last was mid September. They have grown many more now
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