There are several things that can cause the buds, blooms, and foliage to take on a strange deformed or mutated appearance in roses. Read on for more rosedeformityinfo. Common Causes for Deformed Rose Flowers and Leaves. Most rosedeformity in the blooms, and sometimes leaves, is caused from Mother Nature herself or genetic mutations. ... Common Causes for Deformed Rose Flowers and Leaves Most rosedeformity in the blooms and sometimes leaves is caused by Mother Nature herself or genetic mutations. Most rosedeformities of the foliage can be a result of fungal attacks, insect damage and viruses." Do you know what rose that is? I just remembered that my Blue Girl had blooms with that same deformity, never could find out what caused it but it only bloomed 2 years before the... What causes small leaves on rose bushes? Most rosedeformity in the blooms and sometimes leaves is caused by Mother Nature herself or genetic mutations. Sprengel Deformity. Info. Description. Sprengel is a rare congenital deformity of the scapula. #update #roses #taking care of your garden #because sometimes it needs a little help. Grade II: A deformity of the rose that is visible to the eye is a deviation from a regular circle.Rosedeformity (also visible on cast antlers). R3. Loss of rose granularity is greater than 1 cm.