Although bloom times are directly related to the weather, the chart below displays the
usual times for the listed plants to bloom in Boerner Botanical Gardens.
In 2007, Master Gardener Volunteers working with the UW-Extension Horticulture Center
at Boerner Botanical Gardens began recording blooms in the Perennial Gardens. To see
detailed records for more than 1,000 perennial plants, please click here.
Materials on the collections (magnolia, ash, crab apple, maple and street trees)
are available upon request. Please call (414) 525-5601.
