Did the weather cause mottled rose flowers? Why are apples rotting? Read on…

Looking after roses Cut back shrub ...

Why were some of our sunflower heads deformed? ...

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

There is a plum tree growing wild on wasteland with delicious fruits borne on its many suckers. If I dig up a sucker can I grow this tree in my garden or do I have to make a graft? Self-seeded plum tr

Toby explains how plants and trees set up natural defences and outlines what we can do to help