*Bloom time: For flowering plants, the approximate time for first blooms; for other plants - when first fully formed or in leaf. Some plants bloom for long periods. " Spring" = April to May 31; "Early Summer" = June 1 to July 15; "Late Summer" = July 16 to August 31; "Autumn" = Sept. 1 to Oct. 31.
Links on the Common name are to a page of photos and plant information.
Botanical classification: Over the last several years Botanists have reclassified many plants from previous classifications. In some cases consolidating species and varieties and in some cases reclassifying to a different genus. We use the USDA Plants Database which in early 2010 completed a major update of these botanical classifications. Reference books in print will not reflect these recent updates until revised editions are published. While many plants may be known by a previous botanical name and, in many cases by a variety of common names, we have updated the listings on this website to the newest nomenclature.