So, why are your dahlia leaves turning yellow? As Morris Hankinson, Managing Director of Hopes Grove Nurseries, says, ‘Dahlia leaves can turn yellow for a number of reasons, so keep an eye on ...

Feeding your dahlias is important, but overfeeding can do more harm than good – and it could be why your dahlias aren’t ...

Luckily, there’s a very obvious tell-tale sign that your plants have fallen victim to dahlia gall. ‘It looks like a proliferation of shoots at the base of the plant,’ says Josie.

Prof. Wager showed that the outer skins of many leaves are, in fact, lenses, very much like the eyes of many insects, and quite as capable of forming clear images of surrounding objects.

It’s feasting on my dahlia leaves. I don’t use insecticides in the garden so can handpick and squash them if I have to. If they’re not going to do too much harm I’m happy to leave them alone.