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  • Tips for Choosing Trees and Shrubs

    … of the utilities above and below ground. Plant large shade trees well away from power lines . Underground utilities are … planting. What is the tree's purpose in the landscape? Trees and shrubs provide shade, block unsightly views, and … your climate zone. Now it is time to go tree shopping Buy trees from a reliable nursery.  While there is no official …

  • Fertilizing Trees and Shrubs and Nutrient Deficiency Symptoms

    … Updated: February 17, 2023 Do newly planted trees and shrubs need fertilizer? In most landscapes, healthy … are identified by a guaranteed analysis (product label) such as 10-6-4 or 5-10-5. The three numbers represent … of application. Follow the instructions on the product label for the correct spacing and number of spikes to use. …

  • FAQs: Plant and Insect Identification

    … is home to a diverse variety of native trees, plants and insects, as well as some unwelcome non-native … Cost Share Assistance page . How do I distinguish one tree from another? Identifying trees is one of the greatest … Threats: Invasive Plants and Shrubs .   … FAQs: Plant and Insect Identification …

  • Growing Flowering Dogwood Trees

    … dogwood (Cornus florida) is a small Maryland  native tree with white or pink bracts (specialized leaves resembling … the spring, colorful red to burgundy foliage in the fall, and red berries that support wildlife. The key to maintaining … to decline. Refer to our pages about planting a tree or shrub for step-by-step instructions. Caring for your tree

  • Boxwood: Identify and Manage Common Problems

    … Growing boxwood in Maryland Site Spacing and mature size Disease and insect resistant plants Pruning Watering and … Fertilizing Miscellaneous Site Proper site selection and plant care are essential for maintaining the health of … and insect resistant plants To prevent boxwood blight, plant disease-resistant cultivars (e.g. ‘New Gen’™, ‘Green …

  • Losing Your Trees to the Sea? (FS-2022-0645)

    … Updated: June 23, 2023 By Dr. Kate McClure , and Agnes Kedmenecz FS-2022-0645  |  May 2023 Losing Your … conditions can cause stress and can limit growth rates and tree regeneration. Stress caused by flooding and saltwater … of reduced tree health and vigor, including increase in insect problems, sparse crown, low growth, mortality, short …

  • Azaleas and Rhododendrons: Identify and Manage Problems

    … in bloom Updated: June 12, 2023 Key points about azaleas and rhododendrons Rhododendrons and azaleas offer a wide … flower (Rhododendron periclymenoides),  a deciduous shrub, is one of several azaleas native to the Mid-Atlantic … cause stunting and wilting, and may kill small shrubs and tree seedlings. The adult weevils are about 3/16 inch long, …

  • Conifer Bark Beetles on Trees and Shrubs

    … usually less than 8mm. They are brown to black in color and cylindrical in shape. The beetles generally attack trees … pheromone, which attracts more bark beetles to the tree under attack. Beetles often carry pathogenic fungi such … stain that are deposited in the vascular system of the tree. These fungi quickly multiply and clog the water …

  • Tree and Shrub Galls

    … Updated: February 28, 2023 Galls are unusual growths on tree leaves or branches. They are caused by insects. They are … are abnormal swellings of plant tissue, usually on leaves and twigs. Insects, mites, bacteria, fungi, or nematodes may … 2020 Related information Eyespot Galls on Trees … Tree and Shrub Galls …

  • Rose: Identify and Manage Problems

    … a location that receives full sun, good air circulation, and good soil drainage. They require regular maintenance … of modern roses: Hybrid Tea and Grandiflora, Floribunda, Shrub, and Miniature, among others. The American Rose Society … play a large role in disease severity. Disease and Insect Resistant Ornamental Plants: Roses | Cornell …