On a woodland hike in the eastern U.S., lush colonies of evergreen Christmas fern (Polystichum acrostichoides) flourish along the moist slopes (USDA hardiness zones 3 to 8). This native perennial fern favors either a deep or light shade environment. A vigorous clump may grow 18 – 24 inches in height and width. Set new plants […]
Archive for the ‘Garden Maintenance’ Category
Urban Trees Reap Cleaner Air
U.S. Forest Service scientists with the Center for Urban Forest Research report that planting and nurturing street trees in Indianapolis, IN returned 500 percent in benefits from storm water reduction, energy conservation, cleaner air and increased property values. The researchers evaluated more than 117,000 trees the city’s Parks and Recreation Forestry Section manages. It found […]
Winter Sap Bleeding From Trees Not Harmful
Winter can be a cruel period for trees. Day-night temperatures may wildly fluctuate and drying winds tend to injure tender buds. Maples (Acer spp.), flowering dogwoods (Cornus florida), birches (Betula spp.), yellowwoods (Cladrastis kentukea), walnuts (Juglans spp.) and elms (Ulmus spp.) are “bleeders”. The sap pressure inside branches is highest during the winter months. If any […]
“Death By Mower” Disease
“Mower disease” is a totally preventable human malady caused by permitting lawn grasses and weeds from growing near the crown of trees and shrubs. The problem is commonly seen on large properties such as church grounds, cemeteries and public parks. Large gang mowing machines (with many reels) cut 95-98% of the turf area. Workers follow […]
Nativars – New Cultivars Of Native Plants
Nativar is a new term coined by Dr. Allan Armitage, Professor Emeritus from the University of Georgia. It combines the words “native” and “cultivar”. Nativar refers to a cultivar of a native plant. It attempts to excite the horticultural marketplace about new cultivars of native perennial plants, such as blackeyed Susan (Rudbeckia spp.), purple coneflower […]
Are Your African Violets Looking OK?
African violets (Saintpaulia ionantha) are easy to grow flowering house plants. Modern day varieties sold at supermarkets and plant shops often bloom 8-9 months a year. Lighting needs are minimal, either from indirect sunlight from an east-facing window or under special “grow lights” 12 hours daily. African violets prefer water at room temperature (65-75 °F). […]

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