Toby Buckland, Carol Klein, Joe Swift and Alys Fowler give a few professional pointers to help you groom your garden to perfection.

Toby finds himself up to his waist in water lilies at the RHS gardens at Wisley, and shows us what water plants we should be adding to our small ponds. He also gets inspiration for Greenacre from their glasshouse, which is packed with exotic plants.

Carol focuses her students' attention on the care of seedlings, shows them how to pot on plants and shares her in-depth knowledge of the most flamboyant plant in the summer garden - the dahlia.

Joe is back on his allotment catching up on his crops, and in Design Made Easy, he gives advice on the best colourful climbing plants for pergolas.

Alys joins Toby at Greenacre and, as well as catching up on all the seasonal gardening tasks, sows oriental vegetables.