Photina Red Robin
I planted 5 photinas about 2 years ago. They were all about a metre in height and I planted them about 60cm (2 feet) apart. There is space for them to grow as tall and wide as they like, but they don't seem to have grown at all since I planted them.
They are in full sun throughout the day. I thought I kept them well watered throughout the hot dry summers. They regularly produce red leaves which turn green, some have black spots and then the green leaves fall off so the shrubs look fairly bare most of the time. They all produce masses of flowers and berries so they seem 'healthy' but they don't seem to be growing. I planted them for a privacy hedge so how can I make them grow?
Any advice please?