Dahlias are one of the most beloved flowers in Dutch gardens, known for their brilliant colours and impressive varieties. However, to enjoy these beautiful flowers year after year, it is essential to store the tubers correctly over the winter months. In this comprehensive guide, we share the best practices for storing Dahlia tubers storingso you can enjoy their blooming beauty every year.
Table of contents
Why store Dahlia tubers?
Dahlia tubers are not winter hardy in the Dutch climate, which means they will not survive the winter outside without protection. By digging up and storing the tubers after the flowering season, you can protect them from frost and replant them the following growing season.
When to dig up dahlia tubers?
The timing for digging up and storing Dahlia tubers is crucial. Wait until after the first frost when the foliage has turned black. This is usually in October or November. The frost stops the growth process and prepares the tubers for dormancy.
How to dig up dahlia tubers correctly?
Caution
Use a garden fork to loosen the soil around the Dahlia tubers storage. Be careful not to damage the tubers.
Dig out tubers
Carefully lift the tubers out of the ground and shake off as much soil as possible.
Cleaning
Rinse the tubers with water to remove any remaining soil. Then let them dry in a cool, dry place out of direct sunlight.
Preparing tubers for storage
After cleaning and drying, here are some important steps to prepare the tubers for storage:
Inspection
Check each tuber for signs of disease or damage. Remove damaged parts with a clean, sharp knife.
Spray Drying
Allow the tubers to dry for several days in a well-ventilated area to prevent them from rotting during storage.
Tagging
Label the tubers with the variety name and color for easy identification next year.
Storage methods
The key to successful storage is to find a cool, dry place where the temperature remains constant between 4°C and 10°C. There are several methods to Dahlia storing tubers:
In newsprint
Wrap each tuber in newspaper and store in a cardboard box.
With vermiculite or peat
Place the tubers in a plastic bag with vermiculite or dry peat to retain moisture and protect them from drying out.
Breathable pockets
Store the tubers in mesh bags or old tights to ensure good air circulation.
Periodic control
Check the tubers monthly during storage. Remove any tubers that show signs of rot or mold to prevent it from spreading.
Tips for success
Prevent dehydration
If the tubers seem too dry, sprinkle them lightly with water to prevent them from drying out.
Ventilation
Ensure sufficient ventilation at the storage location to prevent mold growth.
Dig up early
Consider digging up the tubers early if a wet fall is expected. This helps prevent rotting due to too much moisture.
Closing note
Proper Storage of Dahlia tubers Storing your Dahlia tubers over the winter is essential for preserving these beautiful plants. By following the correct steps, from digging to storing, you can ensure that your dahlias will put on a spectacular show in your garden year after year. Start by carefully preparing them and choosing the storage method that best suits your space and needs. With a little care and attention, your dahlias can last for many years, blooming with their striking beauty season after season. Also check out our complete dahlia planting and care guide!
