Siberian elm (Ulmus pumila)

It is said that since the Siberian elm is a pioneer species in nature, it makes a less than desirable bonsai because it has a tendency to lose branches through die-back. Years of effort designing a specimen could be foiled because of this. A fast grower, it has weak wood, which means you can break off a branch very easily. However, the trees themselves are very hardy and respond quickly to pruning.

SEE ALSO:

Bonsai Clubs International species care guide , http://www.bonsai-bci.com/species/elm.html

Bonsai4me Species Guide, http://www.bonsai4me.com/SpeciesGuide/Ulmus.html