Perennial Farm and Manor View Farm will co-host an educational seminar from 9AM - 4PM at the Valley Mansion, 594 Cranbrook Road, Cockeysville, MD. Cost is $110. Topics will include: Urban Tree Cultivar Development; Creating an Ecologically Rich Garden; Understanding and Tracking Landscaping Costs; Invasive Insects; Knockout Natives; and more. For more information, contact The Perennial Farm.