Posted: 11/11/2015 at 22:48
Cathy, if you bought these hebes from a well known gc take the sick one back for a replacement. It will have a growth guarantee. In any case still take it back
could be a myriad ....well, a few ....reasons why your plant is poorly. When you initially planted your hebes did you soak the rootballs thoroughly? were the roots tightly packed and did you loosen them? Is the poorly hebe in, as Tetley suggested, in a wettter spot in the garden? Is it more windy/draughty in that spot?