Dahlia

Dahlias are likely grown in most gardens, with 1000's of very cultivated forms, many derived from D. coccinea and D. pinnata, with colours of every hue and many types of flowers. Dahlias originate in Mexico to Colombia, with those that we grow having simple flowers, (good for pollinators) and hardy through most of the UK. With these, tubers can be left in the ground over winter, but in a well-drained soil. If your soil retains water well over winter, it will be best to lift the tubers during this season.