Q.can i move a buddleia plant or it too late now
I am in the process of moving a buddleia plant and was wondering will it do any damage to the plant at this time of the year.

Ideally, one should move buddlia prior to new growth in spring or once its foliage has died down in the fall. If your buddlia hasn't put forth new growth, then you can go ahead and transplant it. If it already has started new growth, you won't irrevocably damage the plant, you just may delay the onset of the blooms.
For more tips on transplanting butterfly bushes, please visit the following link:
https://www.gardeningknowhow.com/ornamental/shrubs/butterfly-bush/tips-for-transplanting-a-butterfly-bush.htm