NC State Extension Publications Numbered Publications, Factsheets, Hard Copy Documents, Authoritative Sources & more …

Notify me when new publications are added.

Browse by Author: Kim Powell
Ordered by popularity

Planting Techniques for Trees and Shrubs

By: Kim Powell Horticulture Information Leaflets

A properly planted tree or shrub will be more tolerant of adverse conditions and require much less management than one planted incorrectly. Planting technique impacts water quality as it minimizes water, fertilizer and pesticide use. When making decisions on planting techniques, one should consider how the plant was grown in the nursery, the plant's drainage requirements, the soil type and drainage characteristics, and the availability of irrigation water. The plant should be specifically appropriate to the site, or the site should be amended to specifically fit the plant.

Small and Intermediate Trees for North Carolina

By: Kim Powell Horticulture Information Leaflets

Small and intermediate size trees play an important role in the landscape. They can be quite functional and offer seasonal beauty. These trees are generally very easy to maintain and require a minimum of pruning.

Roses for North Carolina

By: Kim Powell Horticulture Information Leaflets

Sooner or later most home gardeners think about growing roses. Landscape uses are quite varied because of the many different types of roses. They can be mass planted in beds, used as specimen or trained plants, planted as screens or hedges, or located near fences or arbors and allowed to climb. Several miniature cultivars can even be used as a ground cover or as edging material. Roses are available in almost any color imaginable and are suited to a number of sites.

Fertilizing Deciduous Shade Trees in the Landscape

By: Kim Powell

This publication offers general recommendations for the timing, methods, and rates of applying fertilizer to shade trees.

Hollies in the Landscape

By: Kim Powell Horticulture Information Leaflets

The Holly (Ilex) genus is very popular among landscape architects, nurserymen and home gardeners. Horticulturalists recognize approximately 20 American Holly species, 120 Oriental species, and nearly 200 varieties of the English Holly.

Protecting Plants from Cold Damage

By: Kim Powell Horticulture Information Leaflets

During the winter months it is necessary to offer protection to certain North Carolina landscape plants. Winter protection does not mean to keep plants warm, as this is virtually impossible but to provide protection from damaging wind, heavy snow and ice, the alternate freezing and thawing of the soil beneath the plants and heat from the sun on very cold days.

The Flowering Dogwood

By: Kim Powell Horticulture Information Leaflets

Among the early spring-flowering trees, the dogwood is regarded by most North Carolinians as unrivaled in attractiveness either in its natural woodland habitat or in cultivated landscape gardens. This small, ornamental tree offers landscape interest for all seasons, beginning with its floral display in spring and followed by pleasant green foliage (casting a light shade) in summer. Fall in North Carolina is enhanced by the brilliant show of red, orange, and scarlet foliage along with the bright-red fruit borne in small clusters. In winter, button-shaped buds are prominent on the tips of the twigs. The interesting bark texture and branches help create an excellent winter silhouette.

Azalea Culture for North Carolina Gardeners

By: Kim Powell Horticulture Information Leaflets

To insure a successful azalea planting, cultural requirements, planting techniques, and maintenance should be understood.

Shrubs 1-4 Feet High for North Carolina Landscapes

By: Kim Powell Horticulture Information Leaflets

Landscapers and home gardeners rely upon plants and shrubs in this size category because of their relatively low maintenance demands. Modern trends in landscaping depict this growing concern by utilizing groundcovers, dwarf, or slow-growing shrubs.

Junipers in the Landscape

By: Kim Powell Horticulture Information Leaflets

Junipers are grown all across North Carolina, in just about every landscape situation: around ski villages at Beech Mountain or around ocean-front cottages on Bald Head Island. There are more than 170 species and varieties being grown by American nurserymen. North Carolinians typically choose certain junipers found in the species J. chinensis, J. horizontalis, J. sabina, J. communis, J. procumbens, J. conferta, and of course, J. virginiana - commonly known as Red Cedar.

Conserving Energy with Plants

By: Kim Powell Horticulture Information Leaflets

Never before has the demand for energy been as high -- and never before have homeowners become so increasingly aware of the energy savings possible with landscaping. Although it is not possible to control temperature, wind, and other natural elements, certain landscape practices can help modify the climate in and around the home.

Large Trees for North Carolina

By: Kim Powell Horticulture Information Leaflets

Large trees are dominant features in the landscape. Many plans rely on trees for several design functions: to provide background, enclosure, define spaces, help reduce noise and unsightly views. Trees also provide needed shade, channel breezes, and break forceful winds. They also help the environment by filtering pollutants and exchanging oxygen for carbon dioxide.

A Simple Intermittent Mist System For Propagation

By: Ted Bilderback, Kim Powell, R.E. Bir Horticulture Information Leaflets

Sophisticated propagation structures are not always required to successfully root ornamental plants. Summer propagation of many woody ornamentals can be accomplished by rooting softwood or semi-hardwood shoots in inexpensive frames equipped with an intermittent mist system. During high summer temperatures, leafy soft shoots root more readily if structures are equipped with mist.

Crapemyrtles for North Carolina

By: Kim Powell Horticulture Information Leaflets

Lagerstroemia, crapemyrtle as it is commonly known, is a favorite small tree or large shrub for many southern gardeners. The common name crapemyrtle was derived from the crinkled petals on the end of a long, narrow stem and the similarity of the leaves to a myrtle. Crapemyrtle, also known as "Flower of the South," performs beautifully in all areas of North Carolina except in the highest elevations of hardiness zone 6.

Espalier

By: Kim Powell Horticulture Information Leaflets

An espaliered plant is one that has been trained to grow in one plane. In the 17th century, 'espalier' originally referred to the frame or trellis on which the plant was trained. Today, espalier refers to both the two-dimensional tree or shrub or the horticultural technique of actually training the plant.

Ornamental Grasses for North Carolina

By: Kim Powell Horticulture Information Leaflets

Ornamental grasses are becoming quite popular for North Carolina landscapes. Designers and gardeners realize the fine accent and architectural effect this group of plants contributes to a garden. As one applies the principles of good design — repetition, variety, balance, emphasis, sequence, and scale — along with the design qualities of color, texture, line and form, one appreciates the many uses and functions of ornamental grasses. (The term "ornamental grass" is really a catchall term used to describe all grasslike plants. These would include sedges, reeds, rushes, and a wide host of others.)

Pruning Trees and Shrubs

By: Kim Powell

This publication for property owners and landscapers describes how to prune trees and shrubs properly, which results in attractive, healthy trees and shrubs.

Using Pines in the Landscape

By: Kim Powell Horticulture Information Leaflets

There are several selected pines species which are used in North Carolina landscapes, most being large tree forms. Pines are important to North Carolina not only for the ornamental value but also for lumber, watershed management, resin, turpentine and Christmas trees. There are more than 100 species of the genus Pinus recognized worldwide, of which 36 are native to the United States.

Shrubs 4-8 Feet High for North Carolina Landscapes

By: Kim Powell Horticulture Information Leaflets

Shrubs in this category are useful in landscape situations as hedges, small screens, accent plants, large mass plantings, and large foundation shrubs. These plants can be pruned periodically and maintained at a reasonable size.

Plants for Seashore Conditions

By: Kim Powell Horticulture Information Leaflets

A careful selection of plants is very important for coastal landscapes as plants must be tolerant of extreme adverse conditions in the natural environment. The most influencing force is salt spray. Sand, temperature and wind are also influencing factors in plant choice.

Qualifiers for Quagmires: Landscape Plants for Wet Sites

By: Thomas Ranney, Richard Bir, Kim Powell, Ted Bilderback Horticulture Information Leaflets

Wet, poorly drained soils present one the most difficult challenges for growing plants in the landscape. Excessive moisture displaces oxygen in the soil and plant roots can suffocate as a result. Many plants are intolerant of having their roots submerged for extended periods of time. Even though standing water may not be present, poor drainage is often responsible for reduced growth and survival of plants in our landscapes.

Vines for North Carolina Landscapes

By: Kim Powell Horticulture Information Leaflets

There are several vines which should interest North Carolina gardeners and landscapers. Vines, when used correctly, can be quite an aesthetic and functional addition to the landscape. Basically, there are three types of vines: those that climb by attaching tendrils to a means of support, those that climb by attaching rootlike arms to a wall, and those that climb by twining. The type of vine which is planted will determine the necessity for a supporting fence, arbor, or wall.

Azaleas for North Carolina

By: Kim Powell Horticulture Information Leaflets

As one travels across North Carolina it is quite evident that azaleas are favorite ornamental plants for home gardeners and professional landscapers. Azaleas offer a wide range of size, form and color, and can be used as specimen plant accents or as a mass planting. Flowering dates are from late March to late June with both ever-green and deciduous types available. Azaleas can be grown all across the state (Zones 6, 7, 8, 9), but in order for these shrubs to grow, mature, flower profusely, and generally contribute to the total landscape, an understanding of the different kinds of azaleas, the culture, and environmental factors is necessary.

Composting: A Guide to Managing Organic Yard Wastes

By: Ted Bilderback, Larry Bass, Kim Powell

This eight-page publication explains how you can build and maintain a compost pile to manage organic yard waste at home.

Installation and Maintenance of Landscape Bedding Plants

By: Douglas Bailey, Kim Powell Horticulture Information Leaflets

Use of bedding plant color beds continues to increase. A recent indicates that over 15% of the flowering bedding plants produced in this country are utilized by commercial landscapers. However, success with color beds requires planning, proper bed preparation, and an intensive maintenance program--all of which are outlined in this publication.

The Use of Small and Intermediate Size Trees in the Landscape

By: Kim Powell Horticulture Information Leaflets

We depend on plants to solve our functional and aesthetic needs in various landscape situations. A popular group of plants being recommended and used in modern landscapes is intermediate and small-sized trees. The trees in this category mature to a particular size and are quite "well-behaved" in the landscape. Generally, the trees, both evergreen and deciduous, mature to a height of 35 feet or less.

Superior Crabapple Trees for the Landscape

By: Thomas Ranney, Mike Benson, Kim Powell Horticulture Information Leaflets

Flowering crabapples have tremendous potential as small/medium sized flowering trees that can be grown all across North Carolina. These deciduous, spring flowering trees are adaptable to a wide range of soil conditions and have a variety of ornamental characteristics to choose from, including an assortment of flower color and fragrance, fruit size and color, and tree form.

Summer and Fall Flowering Bulbs for the Landscape

By: August De Hertogh, Kim Powell Horticulture Information Leaflets

Summer and fall flowering bulbs provide another dimension to gardening. They add beauty and interest to the landscape and, since most of them are tender, they offer a unique challenge to the gardener. There are a large number of different types of bulbs, offering variations in forms, fragrances, colors, and lasting brilliance which many summer annuals cannot achieve.

Pruning Field Grown Shade and Flowering Trees

By: Ted Bilderback, Kim Powell, R.E. Bir Horticulture Information Leaflets

Every nurseryman should know how to prune trees and the reason for the various pruning practices. Many landscape problems can be avoided if correct pruning is performed, while the tree is growing in the nursery. Incorrect pruning practices or lack of pruning diminish the quality of the plant material.

Natural Areas in the Landscape

By: Kim Powell Horticulture Information Leaflets

One of the most important considerations in developing a landscape plan is maintenance. Currently, many homeowners desire a low-maintenance landscape. A popular project for home gardeners is the reduction of lawn areas and problem spots by the incorporation of the "natural area." This is most easily accomplished with a 3- to 4-inch layer of organic mulch such as pine needles, compost or pine straw. Although the area is to appear natural, it should not detract from the overall landscape appearance.

Urban Trees for Use under Utility Lines

By: Thomas Ranney, Richard Bir, Kim Powell Horticulture Information Leaflets

Selecting trees for use under utility lines presents a unique challenge. It is often desirable to have trees that are large enough to provide shade, architectural effects, and ornamental features, all without interfering with overhead utility lines. In this publication, we have listed trees that have a typical mature height of less than 30 feet.

Hints for Fall-Planted Spring and Early Summer Flowering Bulbs

By: Kim Powell, A.A. De Hertogh, P.V. Nelson Horticulture Information Leaflets

This publication offers guidelines on planning a garden and buying bulbs, as well as planting planting techniques to ensure healthy flowers.

Recommended Trees for Urban Landscapes: Proven Performers for Difficult Sites

By: Thomas Ranney, Richard Bir, Kim Powell Horticulture Information Leaflets

This leaflet includes a list of recommended trees that have demonstrated particular resistance to harsh growing conditions, diseases, and insects in North Carolina. It should be emphasized, however, that even these trees have their limits. No single species is suited for all sites and consideration should be given to soil conditions, local occurrence of diseases and insects, microclimate, hardiness zone, and mature tree size when selecting any plant.

Deer Problems in the Landscape

By: Kim Powell Horticulture Information Leaflets

Deer are among the most beautiful and graceful but troublesome wildlife in North Carolina. Over the past 10 to 15 years, damage to ornamental plants in landscapes and nurseries, by white-tailed deer has increased dramatically in all 100 counties. This situation has become a problem due to the increase in the size of the deer population in North Carolina and to the urbanization of rural areas. Conflicts between deer and landscaped spaces are expected to increase, as more rural areas will be developed.