When to move perennials and shrubs?
I have a few plants which are in the "wrong" place - they are too tall and hiding others or too short and being hidden etc. I wanted some advice on when to move them. Specifically I have Hydrangea Vanille Fraise which I want to remove from a border and put in a container; Hydrangea PanicuLara which has been Ina container and now need to go into the border; penstemon; osteopsurmum, achillea and canna Lily which all need moving from their current positions to new places.
the hydrangeas have both flowered and the flowers are going brown. The others are mostly finished flowering, just one or two blooms left.
Should I move them now so they have time to grow into their new homes before winter, or wait until they are completely dormant?
Thank you in advance for your advice.