From the time of their moving in in 1953, Donald and Anne Gimson created much of the garden we see today, with the intention of creating colour all year round. This is almost achieved through rhododendrons alone with something in flower, often, from November to September. However when it comes to rhododendrons of course it is springtime that the majority of the 150 or so species and varieties are at their colourful best (shades recommended!).