More A-Zs from RHS Wisley – Agapanthus and Zantedeschia in the Trial Fields

The Trial Fields at RHS Wisley where much is being assessed and examined, usually over a three-year period, to determine the best cultivars and those that might be awarded the coveted Award of Garden Merit (AGM). Rosemary and Alliums, Corn, Viburnum, Penstemons, Petunias, Begonias and Cabbage, Cosmos, Calla Lily, Echinacea - and much more -…