Flowers tearing apart by wind

Hello, So I made a scene with grass from the epic games open world demo and flowers and trees (static meshes) made with blender. I placed the tree manually and the flower is foliage.
When I apply wind to the flower though it tears apart. Is there anyway to solve this? I am assuming by the flowers separating by materials that the different materials on the flower are causing this problem. Is there a way to join the materials into one?
Thanks in advance.