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Information on choosing, planting, growing and maintaining trees and shrubs, including evergreens, walnut, butternut, and hickory trees. Tips on home orchard site selection, pruning, disease control and using trees for privacy.

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Removing the burlap prior to setting the balled tree. Photo: Tim Abbey, Penn State
Review of Successful Tree and Shrub Planting - News News
During my twenty-four year career, the most common tree problem that I encounter isn’t an insect or a disease—it is us. More
Pruning for Professionals
Pruning for Professionals - Workshops Workshops
Landscape professionals are invited to join us and learn the fundamentals of pruning shrubs and small trees in the landscape. More
Tree Tenders® Online Training
Tree Tenders® Online Training - Webinars Webinars

Tree Tenders® Online Training

Multiple Options Available

From: $35.00

Join other residents and start to restore and maintain the tree canopy in your community. More
Guia Para Plantar y Transplantar Verduras
Guia Para Plantar y Transplantar Verduras - Articles Articles
Versión en español de la Guía de Plantación y Trasplante de Hortalizas. More
Extendiendo la Temporada Productiva con Túneles Altos
Extendiendo la Temporada Productiva con Túneles Altos - Articles Articles
Los túneles altos ofrecen protección a las plantas de tierras saturadas de humedad y temperaturas bajas en la primavera y el otoño con lo cual se extiende la temporada productiva. More
Rhododendron in bloom
Pruning Ornamental Trees and Shrubs - Online Courses Online Courses
$59.00
This online course for landscape professionals and home gardeners covers pruning basics: how trees and shrubs grow, when and how to prune, and safety and tools. More
Acer rubrum Red Sunset® on a commercial site with suspected glyphosate damage. Photo: S. Feather, Penn State
Use Glyphosate With Care Near Trees! - Articles Articles
Glyphosate is the active ingredient in non-selective, systemic herbicides sold under a variety of trade names – Round Up, Accord, Glypro, and many others. More
Black walnut fruit. Photo: K. Salisbury, Penn State
Working With the Black Walnut - Articles Articles

Working With the Black Walnut

Kathleen V. Salisbury

Black walnut is one of the last trees to leaf out in the spring and one of the first to lose its leaves in the fall. More
Evergreens near a high use roadway are wrapped with burlap to give some protection from damaging salt spray.
Salt Spray Damage and Evergreen Plants - Articles Articles
Evergreens provide year long interest in the landscape and are normally pretty hardy during the winter months. More
Handling and Planting "Bare Root" Plants in the Home Landscape
Handling and Planting "Bare Root" Plants in the Home Landscape - Articles Articles
How to choose and get the best results from 'bare root' trees, shrubs, and other perrenials. More
Winter is a Great Time to Examine Your Trees and Prune Them
Winter is a Great Time to Examine Your Trees and Prune Them - Articles Articles
Winter is the perfect time to evaluate your trees' branch structure while the leaves are off the tree and not blocking your view to the interior of the canopy. More
Gardening Prep during the Cold Winter Months
Gardening Prep during the Cold Winter Months - Articles Articles
The winter temperatures in northeastern Pennsylvania don’t really feel like gardening weather. More
Home Orchards: Table 4.2. Non-Scab Resistant Apple Varieties
Home Orchards: Table 4.2. Non-Scab Resistant Apple Varieties - Articles Articles
Informational table showing apple varieties that are non-resistant to apple scab but recommended for home planting in Pennsylvania. More
Beech Diseases
Beech Diseases - Articles Articles

Beech Diseases

Gary W. Moorman, Ph.D.

Informational table showing disease name, symptoms, pathogen/cause, and management of Beech diseases. More
Home Orchards: Stone Fruit Variety Selection
Home Orchards: Stone Fruit Variety Selection - Articles Articles
Available peach, nectarine, and apricot varieties will do well on frost-free sites in warmer areas of the state, but where winter temperatures dip as low as -10 degrees, they are a risk. More
Nutritional Requirements of Stone Fruit in Home Fruit Plantings
Nutritional Requirements of Stone Fruit in Home Fruit Plantings - Articles Articles
Shortly after planting, apply 8 ounces of 10-10-10 per plant. More
Stone fruit trees produce vegetative buds and flower buds.
Planting and Growing Stone Fruit in Home Plantings - Articles Articles
Conduct a soil test, and lime and fertilize a 10-by-10-foot area where each tree will be planted. More
Home Orchards: Stone Fruit Flowering Habits
Home Orchards: Stone Fruit Flowering Habits - Articles Articles
Stone fruit trees produce vegetative buds and flower buds. More
General Cultural Controls in Home Stone Fruit Plantings
General Cultural Controls in Home Stone Fruit Plantings - Articles Articles
The following general cultural controls will help to keep your trees healthy. More
Apple Maggot in the Home Fruit Planting
Apple Maggot in the Home Fruit Planting - Articles Articles
The apple maggot, Rhagoletis pomonella, is a serious apple pest that often damages homeowners' fruit. Tapping adults before they lay eggs can reduce the chance of injury. More
Home Fruit Gardens: Table 1.2. Monthly Maintenance
Home Fruit Gardens: Table 1.2. Monthly Maintenance - Articles Articles
Your schedule may vary from the one below by as much as 2 weeks (earlier or later) depending on the region of Pennsylvania in which you are located. More
Fruit Thinning in the Home Fruit Planting
Fruit Thinning in the Home Fruit Planting - Articles Articles
The practice of fruit thinning apples, pears, and stone fruits is much discussed but little understood. More
Pear Rootstocks in Home Fruit Plantings
Pear Rootstocks in Home Fruit Plantings - Articles Articles
Pears do not root easily, so they are propagated by budding or grafting onto a rootstock. More
Seeds from a Gala apple are not guaranteed to sprout another Gala apple tree. Grafting and budding allows you to get your desired variety. First, you will need to chill the seed for it to germinate, and you can do so by following one of three methods.
Hobbiest Gardening - Growing Fruit Tree Plants from Seed - Articles Articles
Many people mistakenly believe that fruit trees come true to name from seeds, but the seeds from a fruit actually produce a new variety that is a hybrid of two plants. More
Frost damage on ash
Will My Woody Plants Recover from Freeze Damage - Articles Articles
When we have unusually high temperatures in early spring, many woody trees and shrubs will break bud and leaf out or flower early. More
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