I have what I'm pretty sure is an Ulmus Parvifolia (it's definitely an
Ulmus) which I bought at a DIY store here in England about 5 years ago.
It has done well throughout that period, even though I know almost
nothing about Bonsai. I've repotted it about three times. This summer
(I've kept it indoors almost all the time - it doesn't seem to like
being outside) the dear old thing has lost most of its leaves about 3
times (since May). They quickly regrow again and it's looking very
healthy just now, but I'm wondering if I'm doing anything wrong. I mist
it virtually every day and water it when it seems to need some watering
- this regime hasn't changed much since I bought it.

I last repotted it in early July - seemed OK except for some small
patches of what seemed to be light blue mould which I removed.

I'd be grateful for any ideas about what I should do, if anything.

Cheers


Jerry