Hello!

Thank you for contacting Ask Extension with your interesting question. Burning Bush, an aggressive non-native, is currently being watched and monitored by Michigan Invasive Species Information Network (MISIN). While sales of this shrub are prohibited in nearby states, it is still being sold in Michigan nurseries as a colorful landscaping shrub. It is a rapid spreader, invading woodlands and displacing native plants, through its vegetative growth and through seed dispersal by birds.

http://www.misin.msu.edu/facts/detail/?project=NA&id=63&cname=Winged%20burningbush

it is interesting to see that there are new cultivars of burning bush that are being developed to be sterile or seed-free. The concern with sterile cultivars is that sometimes they revert back to the straight species and begin to develop seeds/fruit. Here is a great article that you may find helpful: https://ncwildflower.org/chlorofiends-whats-up-with-sterile-cultivars/

Keeping a vigilant watch on your shrub for any seed production would be a good recommendation. If you are interested in replacing the shrub, there are many other beautiful choices – many native – that you may want to consider.

Thanks, again, for asking such an interesting question!