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Planting Ornamentals
Planting Ornamentals - Articles Articles

Planting Ornamentals

Jim Sellmer, Ph.D., Martin McGann, J. Robert Nuss

This publication covers the factors involved in successful, healthy and long-lived plantings, including buying healthy plants, different types of ornamentals, and the proper way to plant them. More
Soil Management in Home Gardens and Landscapes
Soil Management in Home Gardens and Landscapes - Articles Articles

Soil Management in Home Gardens and Landscapes

Jim Sellmer, Ph.D., David Lee Sanford, Ph.D., J. Robert Nuss

This publication explores the interrelationship of a plant and the soil in which it is rooted. More
Controlling Weeds in Nursery and Landscape Plantings
Controlling Weeds in Nursery and Landscape Plantings - Articles Articles

Controlling Weeds in Nursery and Landscape Plantings

Tracey Lynn Harpster, Jim Sellmer, Ph.D., Larry Kuhns

This guide explains how people who grow and maintain landscape and nursery plantings can develop effective weed control programs. More
Sowing Annual Seeds
Sowing Annual Seeds - Articles Articles

Sowing Annual Seeds

Kathy Kelley, Ph.D., Jim Sellmer, Ph.D.

In this guide, sowing annual seeds both indoors and outdoors is explored, as well the care and management of seeds. More
Oakleaf hydrangea in full bloom. Notice the shape of the leaves. Photo: T. Butzler, Penn State
A Guide for Selecting Shrubs for Pennsylvania Landscapes - Articles Articles

A Guide for Selecting Shrubs for Pennsylvania Landscapes

Jim Sellmer, Ph.D., J. Robert Nuss

Information for over 100 shrubs, including: the selection and aesthetic qualities of shrubs, and shrubs for specific conditions. More
Ericacea (Heath) Family and Their Culture
Ericacea (Heath) Family and Their Culture - Articles Articles

Ericacea (Heath) Family and Their Culture

Jim Sellmer, Ph.D., Rick Bates, Ph.D.

Generally, the ericaceous plants are woody and range in size from low ground covers to small trees over 20 feet tall. More
Boxwoods for Pennsylvania Landscapes
Boxwoods for Pennsylvania Landscapes - Articles Articles

Boxwoods for Pennsylvania Landscapes

Jim Sellmer, Ph.D., Gregory Hoover

In the nursery and landscape trade today, numerous boxwood varieties and hybrids are available. More
Landscaping and Gardening Around Walnuts and Other Juglone Producing Plants
Landscaping and Gardening Around Walnuts and Other Juglone Producing Plants - Articles Articles
Walnuts and hickories produce the chemical juglone (5 hydroxy-1,4- napthoquinone), which is exuded from all parts of the plant. More
Ornamentals and Deer: Realities and Landscape Plant Options
Ornamentals and Deer: Realities and Landscape Plant Options - Articles Articles

Ornamentals and Deer: Realities and Landscape Plant Options

Jim Sellmer, Ph.D., Rick Bates, Ph.D., Gary San Julian, Ph.D.

There is much frustration toward the prevalence of deer and the damage they cause. More
Shade Tolerant Trees, Shrubs, and Groundcovers
Shade Tolerant Trees, Shrubs, and Groundcovers - Articles Articles

Shade Tolerant Trees, Shrubs, and Groundcovers

Jim Sellmer, Ph.D., Scott Guiser

Most plants grow best in full sunlight and all plants need some light to survive. More
Trees, Shrubs, and Groundcovers Tolerant of Dry Sites
Trees, Shrubs, and Groundcovers Tolerant of Dry Sites - Articles Articles

Trees, Shrubs, and Groundcovers Tolerant of Dry Sites

Jim Sellmer, Ph.D., J. Robert Nuss, Scott Guiser

Dry soil can exist when there is simply not enough water to supply plant roots in a growing area. More
Trees, Shrubs, and Groundcovers Tolerant of Wet Sites
Trees, Shrubs, and Groundcovers Tolerant of Wet Sites - Articles Articles

Trees, Shrubs, and Groundcovers Tolerant of Wet Sites

Jim Sellmer, Ph.D., J. Robert Nuss, Scott Guiser

Very few plants will grow when soil is constantly saturated; however, some trees, shrubs, and ground covers are more tolerant of wet sites than others. More
Using Trees and Shrubs for Privacy and Wind Screening
Using Trees and Shrubs for Privacy and Wind Screening - Articles Articles

Using Trees and Shrubs for Privacy and Wind Screening

Emelie Swackhamer, Jim Sellmer, Ph.D.

Residences benefit from trees and shrubs planted specifically to block unwanted views or prevailing winds. More
Transplanting or Moving Trees and Shrubs in the Landscape
Transplanting or Moving Trees and Shrubs in the Landscape - Articles Articles

Transplanting or Moving Trees and Shrubs in the Landscape

Emelie Swackhamer, Jim Sellmer, Ph.D.

When you realize that a large shrub or tree was planted in the wrong spot in your landscape what do you do? More
Transplanting Annuals into the Garden
Transplanting Annuals into the Garden - Articles Articles

Transplanting Annuals into the Garden

Jim Sellmer, Ph.D., Kathy Kelley, Ph.D., Phyllis Lamont

When seedlings grow their first pair of identifiable true leaves, they are ready for transplanting. More
Supporting Herbaceous Plants in a Flower Garden
Supporting Herbaceous Plants in a Flower Garden - Articles Articles

Supporting Herbaceous Plants in a Flower Garden

Jim Sellmer, Ph.D., Kathy Kelley, Ph.D., Phyllis Lamont

Some plant varieties that are compact, with strong stems do not require support to hold them upright, however, plants with heavy flowers or tall stems will require some assistance. More
Pruning Herbaceous Plants
Pruning Herbaceous Plants - Articles Articles

Pruning Herbaceous Plants

Kathy Kelley, Ph.D., Jim Sellmer, Ph.D., Phyllis Lamont

A certain amount of maintenance is needed to keep a garden looking its best. This minimal effort may mean the difference between a garden that is mediocre and one that evokes many compliments. More
How to Pasteurize Medium and Sterilize Containers and Tools
How to Pasteurize Medium and Sterilize Containers and Tools - Articles Articles

How to Pasteurize Medium and Sterilize Containers and Tools

Jim Sellmer, Ph.D., Kathy Kelley, Ph.D., Phyllis Lamont

To increase the survival rate for seedlings during germination, containers and tools should be sterilized and pasteurized or sterile soilless mixes should be used as growing medium. More
Homemade Potting Media
Homemade Potting Media - Articles Articles

Homemade Potting Media

Jim Sellmer, Ph.D., Kathy Kelley, Ph.D.

Many cost conscious home gardeners and do-it-yourselfers are often looking for cheaper ways of growing plants for home and garden use. One way to achieve this may be by making homemade potting media. More