Stroll through 16 acres of outdoor display gardens, open daily and free to the public. Olbrich Botanical Gardens' outdoor gardens offer breathtaking displays all year long. View hundreds of blooming bulbs in spring, interesting annuals and hardy perennials in the summer, colorful asters and mums alongside swaying ornamental grasses in fall, and colorful bark, berries, evergreens, and Olbrich's Thai Pavilion standing out against the snow in winter.