What to do with dahlias in August – 4 crucial tasks that will keep your plants flowering into the autumn months

Red Dahlia 'Arabian Night' flowers growing in garden.

If your dahlias are (hopefully) flowering this month and you want to prolong or boost those displays, you'll need to know what to do with dahlias in August.

Whether you’re growing dahlias in pots or dinnerplate varieties in your border, the care you give them right now will determine how long they bloom for – and how much they flower over the coming weeks.