The Dirt: Summer centerpiece and garden tours

Make a lemonade-themed table arrangement using sliced citrus fruit and citrus-hued flowers including daisies, mums and spray roses. Cost is $40 and includes all supplies. The Floral Design workshops are from 6 to 8 p.m. July 18 or 2 to 4 p.m. July 20 at Bachman's, 6010 Lyndale Av. S., Mpls. Register at Bachmans.com or call 612-861-7311.

This self-guided tour on July 20 features landscapes with more than 1,500 varieties of hostas, extensive rock work, fountains, ponds and gardens that attract birds and wildlife in the Stillwater and Woodbury areas. Hours are 9 a.m. to 3 p.m. Tickets are $15 in advance; $18 tour day. To register or for information, call the Minnesota State Horticultural Society, 651-643-3601.

Travel in air-conditioned buses to the Minnesota Landscape Arboretum Auxiliary Garden Tours, which showcase four private gardens in the west metro area featuring ponds, sun and shade gardens, creative containers and garden art. The event includes brunch or lunch on the arboretum's Morgan Terrace and admission to the grounds. Tickets are $55 for July 14 and $50 for July 16 and 17. Call 612-625-9865 or go to www.arboretum.umn.edu/auxiliarysummergardentours.aspx.