Vireya is an entirely different type of azalea, many, especially the large flowered fragrant ones, have leaves and flower trusses that remind one more of landscape Rhododendrons, difficult to make into bonsai. However there are a handful of small leaved species and a couple dozen hybrids with smaller leaves that could make passable bonsai. I'm fond of Rhododendron (Vireya) pauciflora for its small leaves, but alas, my plant has gone to the great compost heap in the sky. Back in 2011 on IBC forum I posted a list of some of the smaller leaved Vireya that might have real potential for bonsai, the following is cut and paste from that thread.
<snip>I played with a couple
Vireya a while back, there are some good species to use, and some less ideal. Most of the white flowered and very fragrant species have leaves that are too large. The leaves don't reduce enough, regardless how much ramification you get. The leaves will reduce some, but not enough.
One advantage of
Vireya, they do tolerate, (some of the more epiphytic species require), a short dry out between watering. If you miss the day they need water, they don't seem to mind, as long as you get to them within a couple days of drying out. No set back if the dry out is short. They will come back if you don't water them. Not so with most terrestrial azalea.
I have grown
Vireya pauciflora, very nice small leaves, one or two deep red flowers per umbel. Slow growing though and unfortunately had no fragrance. I sold the plant some years ago, don't have any
Vireya right now.
Some of the
Vireya species that have small leaves are anagalliflorum, taxifolium, salicifolium, saxifragiodes, rosemarifolia, stenophyllum, and hybrids like (rubineiflorum x gracilentum), (gracilentum x laetum), (macgregoriae x bagobonum), Saint Valentine (viriosum x gracilentum), and many others. Well worth spending some time researching which hybrids and species have smaller leaves.
The draw backs I see is that for all the
Vireya, branching is always pretty coarse, so the fine ramification you would see in a Satsuki just won't happen. But they have a charm of their own, and if you can find a species or hybrid with smaller leaves, and intensely fragrant flowers, you can have an interesting bonsai. But if they don't submit to bonsai training, they certainly are beautiful house plants worth enjoying in their own right.
One USA source is
http://www.bovees.com <snip>
The original thread is here
http://ibonsaiclub.forumotion.com/t6975p15-vireya-rhododendron?highlight=vireya
The subject of Vireya really deserves its own thread, so people can find the information shared more easily.