These natural, dried flowers are merely added as a decorative embellishment. With a high demand for both embellished and non-embellished cacti, we give our customers a choice of whichever type they prefer. We use a low temperature glue as to not harm the plants during application. The flowers pose no harm to the plants and will grow out of them over time. We appreciate your input and hope to mitigate this issue as best as we can. Thank you.