How To Care For Begonias Over Winter. Dry the tubers for some time by spreading them on a newspaper. Replant them by removing them from their containers and replacing the soil with a fresh rich potting soil.
9212017 The begonias go dormant over winter requiring little care during storage. 10262018 To force the plant to go dormant you can do one of two things. Once the leaves begin to turn yellowor after the first killing frostdig up the entire plant and its tuber.
Inspect and only keep ones which are free from rot.
Lift the corm out of the compost and shake tease away any compost attached to the roots and the corm. For some Begonia varieties like Wax Begonia you dont have to take any extra steps. This should be an area that remains between 6573 F 1823 C has moderate humidity and gets either partial or shaded sunlight. 972011 How to Overwinter Your Tuberous Begonias When the time comes to dig up your begonias simply follow these easy steps.