It is summer and it is the perfect time to get out and about visiting gardens. With that in mind, Monty Don leaves Longmeadow to explore the beautiful gardens at RHS Hyde Hall in Essex. He seeks inspiration from their amazing dry garden and discovers how they manage to keep their lawns looking pristine in such a hot summer. Carol Klein travels to RHS Wisley to learn more about the creatures that inhabit our beds and borders. She finds out which insects visit our flowers, feed on our foliage and, most importantly, help keep our plants healthy. And we meet a couple in Bournemouth whose extraordinary front garden never fails to wow the RHS Britain in Bloom judges.