Q.Rooting Crape Myrtles
We are rooting crape myrtle cuttings in a greenhouse and also using a root tone to help, but the plants are dying and not rooting. We have sprinklers on a timer to water them. Plants are dying and not rooting. Any suggestions?

These articles should help: https://www.gardeningknowhow.com/ornamental/trees/crepe-myrtle/how-to-propagate-crepe-myrtle-trees.htm
https://www.gardeningknowhow.com/ornamental/trees/crepe-myrtle/pruning-crepe-myrtle-trees.htm