There aren’t many flowers that can surpass the beauty of the less-than-humble Dahlia. Colourful, waxy and butter-scented; they are the must-have addition to any garden. But did you know that you can easily overwinter your Dahlias, so that you can enjoy them next year?
Although Dahlias are perennial, they are also tender. Special care is needed when storing their tubers to protect them from hard frosts.
As the colder months encroach, you may need to dig up your Dahlias tubers and store them in a frost-free environment. However, there are alternatives. More on that later. Firstly, let’s take a look at overwintering our dahlia roots in a frost free environment.
If you live in a milder part of the UK, then you might want to leave your Dahlias in the ground overwinter. I like this method as it offers very little disruption to the plants. You will need to cover each root-stock with a ‘molehill’ of spent compost. This will act as a blanket against hard frosts. You may also want to try covering your dahlias with fleece, hay or straw to protect them from the worst of the frost. Make sure you feed your Dahlias with fish bone and blood during late spring to encourage vigorous growth and plenty of flowers.
Your tubers have survived the winter and now it is time to plant them out again. The following is a description of when to plant your Dahlias if you live in the UK. Times and techniques may vary for other countries.
If you have enjoyed this guide on how to overwinter Dahlia tubers, perhaps you would like to read our Overwintering Begonias post.
Here is a great video on everything you need to know about getting the best out of your dahlia plants. It is by Geoff Hoyle, a keen Dahlia grower in Bredbury, Cheshire. He not only takes you through planning, planting, staking and propagation, he also explains how to over winter Dahlias in great detail.
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