Posted: 18/05/2015 at 21:22
Very easy from seed, too easy from seed, far far far too easy from seed. BUT, the named ones do not always come true to name so what you get may be better or worse.
Was thrilled to see a plant which arose in my garden on sale at a Plant Fair on Sunday.
It is possible that the ones you mention are sterile. Never checked on mine to see if there are any 'wildings' around them.
I have over thirty of the things and would have more, but I have been ordered to stop buying them.