It's been my experience that the mule eared oncidiums like it dryer in
winter. But I think as far as blooming is concerned, it's the amount of
light that makes the difference. I grow them in small (compared to plant
size) clay pots with excellent draining mix and give them enough sun to put
some red or maroon into the leaves. Mine are blooming or coming into bloom
now here in SC and have every year for the past 4 years. Drainage is the key
to keeping them alive while sun is the key to blooming.
Gary

"Gene Schurg" wrote in message
news
Do the Mule Eared Oncidiums need a winter rest? Dry? Cool?

Mine haven't bloomed in the two years I've had them and they are blooming
size.

Any suggestions?

Thanks,
Gene