Can you trim a limb from a crepe myrtle and make take root?

Yes, you can propagate a crepe myrtle by taking cuttings from its limbs. Ideally, use semi-hardwood cuttings taken in late summer to early fall, ensuring they are about 4-6 inches long with several leaves. Dip the cut end in rooting hormone and plant it in a well-draining potting mix. Keep the cuttings moist and in a warm, bright location until they develop roots.