I know now is a good time of year for dividing herbacous plants ...but would it be ok to split Jack Frost ,Geums and Ladys Mantle? If so how? 2 forks back to back or chopping with a spade , also do I put new divided plants straight into the garden or pot them up up and over winter in greenhouse oh ! and Phlox do I just cut them back now or can I split them as well ?
- 10 Oct, 2012