Hello guest. They need some shade, not to face east. Keep well watered in July/aug and early sept to bud up for next years blooms. Feed with ericaceous fertiliser around that time. or if leaves get yellow discolouration. Trim off any bits after flowering to keep the shrub tidy, and to the shape you require. If in pots they may start to fail after a while,as they prefere an acid soil and space to enlarge.