Dahlia Flower Zone 5. Picking a favorite dahlia is like going through a button box. The season runs from 515 to 1015 or so and flowering is from early July or so until frost.
Any later than that and your dahlias may not. Dont know your hardiness zone. The tubers are lifted and stored in a cool dry place for winter after some frost or a freeze.
Dahlias are lovely but they are higher maintenance than other things in our cold climate here in Maine.
The season runs from 515 to 1015 or so and flowering is from early July or so until frost. Generally youll plant dahlias outside around the same time you plant tomatoes. Cup 120 mL 5-10-10 scattered around the root zone of the plants. Gallery Rembrandt With lilac-rose petals that fade into a light-pink this dahlia blooms massively from mid-Summer to the first frost and it can grow up to 16 inches high.