Stefan Buczacki Professor Buczacki is a horticultural expert, ...

Remove the tall old stems of Russian sage (Perovskia atriplicifolia) to encourage strong new growth. Use secateurs to cut each stem to 15cm from ground level, which might seem drastic but will result

Snip now and your flowers will thank you later as a small trim can work wonders, says Joe Swift

Professor Buczacki is a horticultural expert, writer and former chair of Gardeners' Question Time

Pippa Greenwood One of the top experts on pests and diseases, Pippa gardens using organic methods. Matt Biggs Matt trained at Kew and has been gardening professionally for more than 30 years. Kirsty W

Planting schemes should never stand still, so let’s reassess, reshape and reinvigorate