Despite my advance years I am a novice gardener. I am advised to lift my begonias, wait for the foliage to die, remove the excess earth, sprinkle with BULB DUST, wrap individually and store in a cool dry place until next spring.
What is BULB DUST? Google searches have not been much help and staring at shelves in garden centres has been equally unrewarding.
Any help or advice would be much appreciated.