Description
Dahlia tubers can be potted up in March and April and kept undercover until after the last frosts in May. If you dont have space to pot up your tubers, go straight to No. 5.
Use a large pot (2 or 3 litre) half-filled with compost. Place the tuber with the stalk stem pointed up. Label and water lightly. Place the pot somewhere frost-free a greenhouse or sunny windowsill.
After a few weeks the shoots will begin to push up through the soil.
Do not water them again until you plant them out.
Plant out when the frosts are over in May. If you are planting tubers directly into the ground, you can plant them just beneath the surface not too deep.
Water regularly if the weather is dry and keep picking the dahlias once they are flowering to encourage more growth.
Taller varieties will need staking
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