I just bought a Bougainvillea (about 3 feet high,leggy, and blooming -
one gallon container) and what may be a cottoneaster (or crabapple)
(orange berries and about 3 ft high - 2 gallon container).
The Bougainvillea is an indoor and the other an outdoor - I believe.

What I can I do now to start preparing them for Bonsai size and pots?
Can I prune them back and do root pruning now? I do have a high
intensity sodium light environment for gardening indoors.

Any info is appreciated.

Craig