This gets bigger and bigger. I carried tiG a rooting and sent one to Mark last year. It blooms all summer long way into fall.
SOLVED: The unknown yellow flower
no it's still quite small. infact I'll have to have a look when I get home to make sure it is still alive as it was afew weeks ago from I checked it. Quite a few of my plants have ?drowned in recent week including my heliopsis 'Lorraine' which had loads of stems.