We have two burning bush plants that refuse to "burn." Both are about three feet tall, green leaves and neither has ever colored. Help! They're in full sun and on fair lawn soil. We have lots of clay here, about 6 inches below the lawn soil. The site is well drained.
Burning Bush Plants, No “Burning” Leaves Just Go to Yellow in Fall.
Certified GKH Gardening Expert
You likely already answered your question. Burning Bush need loamy and well draining soil. I can also say I have or had 2 Burning Bush, one flourishing and turning a brilliant red in the late summer and fall. The other in a heavier soil area and it has barely grown and only turns a slight darker green in the fall. I actually just tore it out of the bed this spring.