Penstemon digitalis the plant's cultivars is named Husker Red because of its red foliage that has white or bluish-pink flowers. The Perennial Plant Association chose the Husker Red cultivar of "Penstemon digitalis" as the 1996 Perennial Plant of the Year. The author of the book "Perennial All-Stars" described Husker Red as "a stunning flowering perennial" and that "you can easily see why the Perennial Plant Association chose this perennial above all others". Husker Red was named after the Nebraska Cornhuskers. The other cultivar, Mystica, is green at first and then later changes to red in the fall. There is a hybrid of
Plant as rayon and acetate derived from plant cellulose. Thread used to sew cloth likewise comes in large part from cotton. Thousands of plant species are cultivated for aesthetic purposes as well as to provide shade, modify temperatures, reduce wind, abate noise, provide privacy, and prevent soil erosion. Plants are the basis of a multibillion-dollar per year tourism industry, which includes travel to historic gardens, national parks, rainforests, forests with colorful autumn leaves, and festivals such as Japan's and America's cherry blossom festivals. While some gardens are planted with food crops, many are planted for aesthetic, ornamental, or conservation purposes. Arboretums