The Hickory Ridge Community Association presents "The History of Gardening and How to Use It in Your Own Landscaping" from 7:30 p.m. to 8:30 p.m. Tuesday at the Hawthorn Center, 6175 Sunny Spring. Master Gardener Pat Greenwald traces the evolution of the garden from the Italian Renaissance to today's backyard. Free admission. Call 410-730-7327 for more information.