Begonia sinensis bulbils storage over winter

[François Lambert]

Hello,


My Begonia Sinensis made a number of small bulbils which I have now harvested.  My question is how to store these over winter in the best conditions to start them goring next spring.  Last year I had sown the bulbils immediately after harvesting them in the fall, just covered with some sand and kept them in an unheated barn hoping the sand would protect from drying out.  None of them started to grow in spring however  but they had also been exposed to rater low temps during the winter.  What dod I do wrong and what can i do better ?

Any advice will be more than welcome.

[FossilPlants]

I would sow them like you would seed and keep them somewhere cool over the winter so that they come out of dormancy as the temperatures increase in the spring. Keep them moist but not too wet over the winter.