Species and Varieties

Information on species and varieties of ornamentals and floriculture, including poinsettias, violets, hydrangeas, viburnum, marigold, pansy, lilac, mountain ash, irises, lilies, narcissus, impatiens, holly, pothos, hostas, lilies and gloxinia.

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Highlights of the 2017 Penn State Flower Trials
Highlights of the 2017 Penn State Flower Trials - News News
In 2017, 931 entries were in the Penn State Flower trials at the Southeast Agricultural Research and Extension Center, in Manheim PA. More
Container Gardening
The Art of Container Gardening - Articles Articles
Constructing a container garden isn’t about doing everything perfectly. In fact, there is no right way to create a container garden. More
Planting Ornamentals
Planting Ornamentals - Articles Articles

Planting Ornamentals

Jim Sellmer, Ph.D., Martin McGann

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
Black-eyed Susan (Rudbeckia spp.)
Heat and Drought Tolerant Plants - Articles Articles
Sandy Feather, extension educator in Allegheny county, has prepared this list of trees, shrubs, annuals and perennials that don't just survive but will thrive in our long, hot summers. More
Wild bees like this bumble bee are essential to Pennsylvania agriculture.
Conserving Wild Bees in Pennsylvania - Articles Articles

Conserving Wild Bees in Pennsylvania

Mary Barbercheck, Ph.D., David Mortensen, Ph.D.

Wild bees, which include native and naturalized bees, pollinate a variety of crops. In areas of Pennsylvania, wild bees already provide the majority of pollination for some summer vegetable crops. More
Lacy L. Hyche, Auburn University, Bugwood.org
European Fruit Lecanium - Articles Articles
The European fruit lecanium is a key soft scale insect pest of shade trees and other woody ornamental plants in Pennsylvania. More
Phytophthora on African violet
Phytophthora Root Rot On Woody Ornamentals - Articles Articles
Fungus-like organisms belonging to the genus Phytophthora are soil- or plant-borne and all are plant pathogens. More
The fragrant yellow flowers open in early spring and standout against the backdrop of the green foliage.
The Multi-Faceted Oregon Grapeholly - Articles Articles
Looking to add some diversity and oomph to your pollinator garden? Or maybe create a landscape that you can also eat? Check out the Oregon grapeholly. More
Photo: Michael Masiuk
Tough and Beautiful is Hard to Beat - Articles Articles
Parrotia persica, also known as Persian ironwood, is native to a relatively small region of northern Iran and Azerbaijan, near the southern edge of the Caspian Sea. More
A fresh snowfall shows great contrast between the white snow and the blue, shrunken fruit of Viburnum nudum ‘Winterthur’.
Viburnum nudum ‘Winterthur’ - Articles Articles
V. nudum ‘Winterthur’ is well adapted to most of the mid-Atlantic region and southern US, and performs well in a variety of conditions. More
Climbing hydrangea will cover any structure adding an interesting element into the landscape. From afar, the two different flower structures can be very attractive. Photo: Tom Butzler
The Climbing Hydrangea - Articles Articles

The Climbing Hydrangea

Tom Butzler

Although not native to North America, climbing hydrangea is well suited for our area; up to zone 4. More
Photo by Pamela T. Hubbard
Cutting Down Perennials in the Fall - Articles Articles
Most of the perennials in the garden are finished blooming and it's time to throw in the towel for the growing season. More
The African Sunset petunia is one of the genetically engineered varieties that the USDA is asking breeders to destroy. Photo: S. Adam, Penn State
Illegal Petunias Pulled From Flower Trials - News News
As horticultural producers of bedding plants are winding down the busy spring season, it came as a shock to many that some of the petunias being produced are actually illegal. More
Whitney Cranshaw, Colorado State University, Bugwood.org
Oystershell Scale - Articles Articles
The oystershell scale is a common armored scale insect that causes injury to shade trees and shrubs, most often lilac, ash, dogwood, maple, poplar, and willow. More
Lorraine Graney, Bartlett Tree Experts, Bugwood.org
Obscure Scale - Articles Articles
The armored obscure scale is a key pest of oak in Pennsylvania, and can attack other woody host plants such as beech, dogwood, hickory, maple, and willow. More
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