A florist will design and create arrangements of flowers in wreaths, bouquets, vases and centrepiece elements. Sometimes florists may design entire rooms or outdoor areas, and fill them with flowers in a pleasing arrangement. This is especially true in the case of extravagant weddings or parties.In addition to arranging flowers, a florist is also responsible for their care. They must be proficient in all aspects of plant care and be able to maintain a wide variety of species in the flower, foliage, herb and ornamental grass families. Plants used in arrangements must be picked at the peak of their beauty and last as long as possible after being delivered to the client. Successful florists will choose a balance between the hardiest and most beautiful species.