burning bush leaves will not turn red in fall

Question

There are very few leaves that turn red. The bushes are about 7 years old.

Answer 1

This actually is quite a common complaint about Burning Bush.
I myself have on shrub that is a brilliant red color and one that has only a hint of color.

Proper plant sight with good sunlight is important.
Applying a light fertilizer in the early spring will help the plant.

Here is a link to refresh you on the care requirements to optimize the plants growth.

https://www.gardeningknowhow.com/ornamental/shrubs/burning-bush/burning-bush-care.htm