Hello to all I have a Hebe which is well established but is looking a bit tired, but apart from deadheading which I do after flowering, what else do I need to do to give it a much needed boost. I also noticed new a couple of new shoots baring green leaves not variegated as the others are. I attach a photo. Thank you
Reduce the length of some of the flowered shoots by about a third, this will encourage the plant to become bushier and give more flowers.
Apply a general purpose feed, such as Blood , Fish and Bone, Chicken Pellets, or Gromore, or alternatively apply a liquid feed of Seaweed fertiliser (eg Maxicrop) - the latter may also be used as a foliar feed in a fine spray.
Mulch around the plant to conserve moisture. In Winter months it may need some protection against low temperatures, eg covering with horticultural fleece.