Posted: 26/04/2016 at 20:46
Peanuts, I grow some of those
purpurea,, magnus are hardier types.......4 years plus on free draining soil
Vintage Wine is more tender ..3 years is optimistic.
don't know Crimson Star but expect it to be like VW.
i grow a few other varieties including Marmalade, Tiki Torch, coconut ice, hot papya all tenderish up country. I grew several varieties from seed ......some have proved their worth; others not.
echinaceas need to build up their root systems before flowering so I remove all flowers before mid summer. This helps them to flower well thereafter and to build a rootsystem to help survive the winter. If you can't provide warm free draining soil echinaceas will struggle