Bryan, I have seen slides of a nurseryman who propagates these by leaf cuttings. Remove the leaf, make a slight cut down the midrib, but not cutting all the way through.Dust with rooting powder, and lay on a porous rooting medium. Pin the entire leaf with small pieces of wire onto the rooting medium. Enclose the container in a plastic bag, poking holes to allow for some air circulation , and preventing heat build up. Some spray a weak solution of fungicide on the leaf to prevent mildew. Cross your fingers, watch and wait. Good Luck. Rick K On Sun, May 5, 2013 at 8:00 AM, Brian Whyer <brian.whyer@btinternet.com>wrote: > I have some pots of tuberous Begonia, which when I need to I usually > propagate from stems cuttings in summer, but I notice these pots have many > shoots coming and was wondering if now might be a reasonable time to divide > the tubers? > According to this > http://doityourself.com/stry/… autumn is > the suggested time. The pots themselves are full of fibrous roots. Are > these perennial roots or annual roots that will be replaced naturally? I.e. > can I just chop the root ball, and then the tuber safely up now? All this > years shoots are only a cm or so tall so far. The pots were kept in a > sheltered cold frame over winter. > > Brian Whyer, Buckinghamshire, England, zone ~8 ish > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ >