I have got a photinia which is 9 ft high by 6 ft wide, it is on the right
hand side looking out of my conservatory,4 ft from the fence & 15 ft from
the conservatory.My garden is 20 ft wide.In the RHS encyclopaedia it says it
grows to 15 ft by 15 ft,how long would it take to achieve this size & can it
be pruned to keep it to a size, I was happy to keep it at.I bought this
plant for £70 from my local garden centre.

Thanks Keith,UK.