Help required with growing Lavatera

[awizzbang]

We bought three lavatera plants through a gardening website and planted then as instructed 2 in pots and one in the garden. They had been cut back to about 2 in above the roots. We would have expected to see some kind of growth from the plant by now but nothing seems to have happened. Are we just being too premature or are there things we need to do.

Any help greatefully received