University of Maryland Extension

Home and Garden Information Center

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February Tips & Tasks

Back to Gardening Tips & Tasks Vole damage Outdoor Yard and Garden Tips Examine the base of a shrub for signs of vole damage if you notice dead stems or branches. This is a fairly common occurrence on mugo pine, cherry laurel, azalea, boxwood, and junipers. Voles are a type of field mouse that...

The Challenge of Growing a Lawn in Maryland

White clover flowering in a lawn. Photo: Pixabay It’s Time to Rethink Our Lawns & Landscapes A lush green lawn is often expected as part of the typical American home landscape. We receive questions from Maryland residents when their lawn contains weeds or brown spots, does not grow well, or...

July Tips & Tasks

Back to Gardening Tips & Tasks Bagworms covering white pine Outdoor Yard and Garden Tips Spotted lanternfly adults may be found feeding on many hosts, especially tree of heaven (Ailanthus altissma ). Report any finds to the Maryland Department of Agriculture immediately, collect a sample or...

Walnut Toxicity - Juglone

March 2019 Walnut Toxicity Update It has been an accepted article of faith among horticulturists that juglone, a chemical compound associated with black walnut roots, inhibits the growth of certain plant species growing nearby. Researchers and Extension personnel have developed long, authoritative...

June Tips & Tasks

Back to Gardening Tips & Tasks Outdoor Yard and Garden Tips Cut iris flower stalks down to the crown when they are finished blooming. Leave the foliage alone. If your iris are over-crowded after flowering lift and divide them. Check rhizomes for iris borer. Practice IPM (Integrated Pest...

May Tips & Tasks

May Tips & Tasks Outdoor Yard and Garden Tips If your azaleas, rhododendrons and other spring flowering shrubs are growing too large prune them after they bloom. Thin out interior boxwood branches to improve air circulation and reduce disease problems such as volutella canker . Also, look out...

April Tips & Tasks

Back to Gardening Tips & Tasks Outdoor Garden and Yard Tips Cedar-apple rust disease forms its galls on Virginia cedar ( Juniperus virginiana ) in April. The odd-looking galls are at first bright orange gelatinous balls with long “horns” or projections; they later turn brown and become hard...

March Tips & Tasks

Back to Gardening Tips & Tasks Outdoor Yard and Garden Tips Many types of annual flower plants can be started indoors this month. Most are started 5-6 weeks before they are planted outdoors. Begonias, sweet peas, geraniums, and impatiens need to be started 10-12 weeks before the last expected...

Organic Lawn Care

Photo: Flickr Organic lawn care is desired by people who want a more environmentally friendly managed lawn. Concerns about the impacts of pesticides on humans, pets, wildlife, pollinators, and the environment, including the Chesapeake Bay, are the driving factors behind the wish to make a change...

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