They get morning sun. After that it is all dappled shade from a Crepe Myrtle. They like some shade from the Texas sun. They do not seem to like shade from being planted under the canopy of a tree. They grow like wildfire for my gardening friend who gave them to me. Hers are in the ground but get their shade from a house and fence. I have a feeling they are more picky about the soil. There are too many variables under a tree. Nutrition and water. Many joys to everyone!