The saponins found in this plant are potentially poisonous for people and no part of the plant should be eaten. These saponins can also be used to make soaps. The southern magnolia is the state flower for Louisiana and Mississippi. This tree will put on an autumn show, but be aware that there will be a LOT of the little leaves to clean up once the leaves fall off. Our streets would be filled with them each year. The Yaupon holly is perfect for planting in a wildlife garden, as many birds and mammals love to eat the red or yellow drupes. If you do want the trees to have fruit, you will need to have more than one as they are dioecious.