Is magnolia tree ok to plant in zone 9a?
A magnolia black tulip TESSELAAR tree
Certified GKH Gardening Expert
Yes, they are just barely hardy in your area, as you are at the edge of their survival zone. With some protection from summer heat, you should see normal growth.
This article will help you to care for Magnolia Trees: https://www.gardeningknowhow.com/ornamental/trees/magnolia/magnolia-tree-care.htm