Information on choosing, planting and maintaining ornamentals and floriculture, including pruning, diagnosing plant health, plant life cycles, container gardening, repotting, fertilizing, water quality checklist and integrated pest management.

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Not only an early spring/late fall bedding plant, the flowers can be used as a garnish or candied. Photo: Tom Butzler, Penn State
Flowers Becoming Hot Topic - News News

Flowers Becoming Hot Topic


The annual Mid-Atlantic Fruit and Vegetable Conference (MAFVC) in Hershey, PA is a chance for area growers to gather new information about pest issues, marketing ideas, and production matters. More
Photo: Alyssa Collins
Penn State Flower Trials Aid Industry, Consumers in Picking Posies - News News
The Penn State Flower Trials — in its 85th year — has a powerful benefit in Pennsylvania and beyond. Penn State's Southeast Agricultural Research and Extension Center in Manheim, Lancaster County, serves as the epicenter of the trials. More
An African Marigold being grown at the proper pH. Photo: Tom Ford, Penn State
Milk is Not a Substitute for Flowable Lime Rescue Treatments - News News
Low media pH has been known to increase the risk of iron and manganese toxicity in some horticultural crops like geraniums and African marigolds. 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
Greenhouse Meeting
Greenhouse Meeting - Workshops Workshops
Learn about the latest research-based information and best management practices for your business. More
Sowbugs and pillbugs congregate in moist areas. Photo by Sinclair Adam.
Sowbugs and Pillbugs: Occasional but Destructive Greenhouse Pests - Articles Articles
We hear periodic reports of sowbug and/or pillbug outbreaks in greenhouses and high tunnels in Pennsylvania. More
When retail greenhouse space gets scarce, plants literally get stacked up. Photo: L. Stivers, Penn State
When Plants Back Up in the Retail Greenhouse - Articles Articles
Timing product supply and quality with peak customer demand is often a challenge for greenhouse operators. More
Altenanthera spp. Photo: T. Ford, Penn State
Elevated Sodium in Irrigation Water and Crop Injury - Articles Articles
Elevated sodium and chloride levels are being observed more frequently in private water supplies in rural areas. More
Improve Energy Efficiency in Greenhouses
Improve Energy Efficiency in Greenhouses - Videos Videos
In this video, learn the top 10 things greenhouse growers can do to improve energy efficiency and save money. More
Long-blooming Perennials
Long-blooming Perennials - Articles Articles
A listing of perennial plants with long bloom times. 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
Chrysanthemums - Articles Articles
How to get great mums without a lot of work. More
Plants for Your Office
Plants for Your Office - Articles Articles
Green plants make a welcome addition to any office, but did you know that plants could actually clean the air? More
Pruning Flowering Shrubs
Pruning Flowering Shrubs - Articles Articles
The correct time to prune your flowering shrubs depends on when they flower. 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
Pruning Ornamental Plants
Pruning Ornamental Plants - Guides and Publications Guides and Publications

Pruning Ornamental Plants

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


Understand the art and science of pruning. More
Azalea and Rhododendron Diseases
Azalea and Rhododendron Diseases - Articles Articles

Azalea and Rhododendron Diseases

Gary W. Moorman, Ph.D.

Informational table showing disease name, symptoms, pathogen/cause, and management of Azalea and Rhododendron diseases. More
Dahlia Diseases
Dahlia Diseases - Articles Articles

Dahlia Diseases

Gary W. Moorman, Ph.D.

Informational table showing disease name, symptoms, pathogen/cause, and management of Dahlia diseases. More
Greenhouse Production
Greenhouse Production - Articles Articles
Greenhouse production may be year-round and can provide valuable cash flow throughout the year. 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
American Standard for Nursery Stock
American Standard for Nursery Stock - Articles Articles
This guidebook provides buyers and sellers of nursery stock with a common terminology in order to facilitate transactions involving nursery stock. More
Scheduling Disease Control In Woody Ornamentals
Scheduling Disease Control In Woody Ornamentals - Articles Articles
The scheduling of effective disease management measures is not a simple task nor can it be standardized. More
Edema Of Geranium
Edema Of Geranium - Articles Articles

Edema Of Geranium

Gary W. Moorman, Ph.D.

Edema is a disease that affects geraniums, causing leaves to yellow and die. 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
Containerized garden mums waiting to be shipped.
Ethephon (Florel) Usage on Mums - Articles Articles
Today’s modern garden mum growers are benefitting greatly from improved genetics and the use of ethephon as a plant growth regulator. More
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