ospam (Over40pirate) in
:

I just purchased 3 types of crape myrtles....Tonto, Dynamite and
Tuscarora. Are any of these the "tree" type or are they all the
"V-Shaped" bush type? Thanks

, i think i've heard some varieties prefer to be multis or standards.
growht variations because Lagerstroemia are hybrids

try gogling those cv names with
http://www.google.com/search?hl=en&l...andard+Erect+%
7Cform++%22multi+stem%22+lagerstroemia+prefers

but i thikn you could train them eihter way (as other reply says)