Can I Grow Dahlias In A Container. Pots are also increasingly popular way to grow dahlias. There are certain species of dahlia that can grow as high as five feet so if you are going to grow these you will want to choose a bigger pot.
Mix 1 part potting soil and 2 parts garden soil and fill the container approximately half way. Otherwise I dont think it much matters. There are certain species of dahlia that can grow as high as five feet so if you are going to grow these you will want to choose a bigger pot.
The second benefit is once the tubers sprout and become a seedling you can transfer them outside and grow other plants in the same container.
Dahlia tubers are expensive. Larger varieties may also be grown in containers but require proportionally larger containers. Otherwise I dont think it much matters. Growing dahlias in pots also keeps the tubers out of reach of hungry gophers.