If the leaves have ... It’s dahlia season, when these big, colourful blooms add a touch of glamour to the garden – and if you treat them right they can flower into October and even November.

'Spring, usually around late February to early March, is preferred by some gardeners because it is easy to see where to ...

All you need to do is trick the dahlia tuber into making new shoots ... Lay the cutting on a hard surface and remove the lower leaves flush with the stem. Neatly trim the base of the cutting ...

Dahlias are a staple of the late summer garden and often flower on into autumn ... As they grow and develop leaves, when they are around 10in tall you can pinch out the top growth back to the ...

This year, Hannah has planted a huge range of flowers in her garden, as part of a local venture called the Flower Power Project ... To encourage more dahlia blooms, you can pinch out the central ...