Archive for the ‘Mountain laurel (Kalmia)’ Category

Mountain Laurels – A Native Shrub Many Gardeners Forget To Plant

Mountain laurel (Kalmia latifolia) is a U.S. native broadleaf evergreen shrub (USDA hardiness zone 5 – 7(8)). Whether you are hiking through area woodlands or driving through Biltmore Estates in Asheville, NC, flowering mountain laurels dominate the May-June landscape in Northeast Tennessee or Western North Carolina.  Mature shrub sizes range from 5 feet (dwarf cultivars) […]

Changing Garden Soil pH

In general, the garden soil pH fluctuates only slightly unless you accidentally spilled fertilizer or limestone. Soil pH is also affected by rainfall patterns, decomposing organic matter, and bacterial activity in the ground. In the eastern U.S. rain water is slightly acidic. Acid rain is the result of these pollutants (mostly sulfate and nitrate) from […]

Care Of Rhododendrons

In the U.S., two species of rhododendrons, Catawa (Rhododendron catawbiensis) and Rosebay (R. maximum), are plentiful in the Appalachian Mountain region. Their roots feed in part on the rich humus material in the rocky mountain soils. Over time fallen leaves, twigs, and flower parts decay into additional humus. Humus improves soil aeration and drainage, yet […]

Plant Disease Warning: Phytophthora ramorum

Known as “sudden oak death”, this serious plant disease (Phytophthora ramorum) (Pr) from the West Coast kills oak and other species of trees. It has caused devastating effects on the oak populations in California, Oregon, and Washington, and is also present in Europe. Symptoms include bleeding cankers on the tree’s trunk and dieback of foliage. […]

Tips On Amending The Soil In The Planting Hole

Adding large amounts of compost or organic matter to a planting hole greatly improve the soil’s water-holding capacity and aeration. Simply throwing piles of leaves into the bottom of the planting hole helps improve a soil. However, amending the planting hole is not recommended by most plant experts. Why? According to soil scientists, the plant roots stay locked within the rich […]

Fall – Winter Pruning Dos and Don’ts

Pruning is a chore that you don’t need to put off until spring. Many trees and shrubs may be pruned this autumn. However,  NOT all landscape trees and shrubs are pruned.  Here are some pruning guidelines to follow: WAIT to  prune spring flowering deciduous shrubs such as Forsythia, Lilac, Bridal Wreath & Vanhoutte Spireas, Quince, Viburnums, Fothergilla, […]

Benefits Of Mulching

Mulching benefits garden soil and enhances the landscape appearance. Here is how: Prevents weed seeds from germinating, thereby reducing hand weeding. Mulching keeps plant roots moist and cool in summer. Fall mulching acts like a thermal blanket and aids newly set plants to establish their roots quickly. Reduces the need to water the garden as often. […]

Pest Alert -Laurel Wilt Disease

Laurel wilt (Raffaelea lauricola) is an invasive deadly vascular wilt disease of red bay laurel and other trees in the Lauraceae family. The fungal disease is carried from tree to tree by a small beetle called the redbay ambrosia beetle (Xyleborus glabratus). This Ambrosia beetle bores into the wood and the fungus disease infects the […]

Facts About Garden Watering – How Much And When

Modern gardeners are using more efficient drip irrigation or soaker hoses. Water bills are less than overhead or oscillating systems.  You may opt to attach the hose to an automatic timer so you can irrigate in absentia. Water goes on and off anytime you select. In garden beds water plants deeply once weekly rather than a […]

Should You Plant In Fall?

            Should you plant in the Fall? It depends what region you live in, what month in fall, and what species you’re planting. If you live in the mid-Atlantic, coastal New England, or Southeastern U.S., fall is an excellent time to set most hardy plants. Most (not all) trees, shrubs, perennials, […]