Home Flower Gardening How to Grow Dahlias in Pots: A Step-by-Step Guide

How to Grow Dahlias in Pots: A Step-by-Step Guide

by Donna
2 minutes read

How to Grow Dahlias from Tubers in Pots


Dahlias are beautiful flowers that can add a splash of color to your patio or balcony. They’re relatively easy to grow from tubers, and with a little care, you can enjoy their blooms all summer long.

Choosing and Planting Dahlia Tubers

When choosing dahlia tubers, look for firm, healthy tubers with no signs of rot or damage. You can buy tubers from garden centers or online retailers.

To plant dahlia tubers, fill a large pot with peat-free, multi-purpose compost. Make sure the pot has drainage holes. Plant the tubers about halfway down, with the buds on the tuber shafts facing upwards. Water well.

Caring for Dahlias in Pots

Dahlias need plenty of sunlight and water. Water them regularly, especially during hot, dry weather. Feed them with a phosphate-rich liquid fertilizer once a week.

To encourage bushy growth, pinch out the tips of the main shoot when it’s about 4 inches tall. You should also remove most of the shoots growing from the tuber, except for five.

Overwintering Dahlias in Pots

In winter, move potted dahlias to a frost-free spot, such as an unheated greenhouse. Remove as much compost from around the tubers as you can, and replace it with fresh compost. This will give the tubers a fresh burst of nutrients.

Best Potted Dahlia Varieties

Not all dahlia varieties are suitable for growing in pots. Some of the best varieties for pots include:

  • Mignon dahlias
  • Ruff dahlias
  • Water lily dahlias
  • Ball dahlias
  • Pompom dahlias

These varieties are smaller and slower-growing than other types of dahlias, making them ideal for containers.


Growing dahlias in pots is a great way to enjoy their beauty on your patio or balcony. With a little care, you can keep your dahlias healthy and blooming all summer long.

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