Learning to distinguish the symptoms of lightning strikes is a valuable tool for arborists, landscapers, pest control companies, and gardeners. The symptoms may be confused with other causes such as lethal yellowing disease (Candidatus palmae...

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Plastic horticultural pots are the primary vessels used in horticulture and landscaping. Without them, the Green Industry would not have grown to be the multibillion dollar industry it is today. Primarily after single use, billions...

Join others in learning about the high diversity of plant species characteristics of the longleaf pine ecosystem and how it supports the many common and unique wildlife species in these open forests dominated by a single tree. Participants will also...

The guide provides a detailed the native plants of New York that are crucial for supporting native specialist bees; including, where the region or habitat the plant occurs naturally, date of bloom, color of bloom, plant structure, how to obtain seeds...

Trees grow with, and adjust to, large lateral and vertical loads caused by wind and gravity. Storms with strong winds and ice can push trees beyond their ability to reconfigure or fall back to reduce drag. Exceeding tree structural ice and wind load...

With increased intensification in cities throughout the world, urban trees are often at risk of becoming damaged by construction impacts, such as utility trenching or pavement / sidewalk repair. If the damage is severe and a tree loses a lot of its...

Following the Governor’s announcement on the re-opening trajectory for Ohio, see Holden Forests & Gardens request to reopen the Arboretum grounds on Tuesday, May 12, 2020. To ensure the safety of visitors and staff, HF&G will follow all the...

As the COVID-19 pandemic continues to progress, most jurisdictions have implemented
physical distancing measures community-wide. As chains of transmission begin to
decline, along with new COVID-19 cases, there will need to be decisions at...

The 2019 novel coronavirus (COVID-19) is a contagious disease that is rapidly
spreading from person to person in the Commonwealth of Pennsylvania. COVID-19 can
be transmitted from people who are infected with the virus even if they are...

Two speakers will present restoration ecology research published in the January 2020 issue of the Natural Areas Journal: Leighton Reid will share understory plant community outcomes based on twelve years of monitoring in a woodland mosaic in Missouri...

Historic urban grasslands include greenspaces of historic value designed for passive and active recreation in the human built environment. Urban grasslands such as cemeteries and parks present unique challenges to landscapes designed in the early...

The goal of the webinar is to provide an overview of soil management for urban trees. Specific emphasis will be given to soil assessment. The webinar will introduce soil quality, cover how soil quality can be assessed, and discuss how soil quality...

Today's grounds manager has to be a scientist, a phychologist, an artist and designer, a business administrator, and an astute politician. This webinar will discuss how to provide grounds managers with many of the resources necessary for efficient and...

Permeable pavements rapidly drain surface water through its joint spaces and therefore has the potential to prevent ice from forming on its surface during winter conditions. As a result, these pavements may reduce the amount of road salt needed for de-...

This Plan is intended to outline plans for preparing for emergencies and for immediate response and short-term recovery efforts in an emergency. In addition, it contains plans for the security of the Arboretum's living and non-living collections and...

Join Jenica Allen and Bethany Bradley to learn about new tools for identifying and prioritizing range-shifting invasive plants coming soon to a landscape near you. Whether you’re a property owner, land manager, landscape professional, or policymaker,...

Mulches provide many benefits for trees and shrubs. Properly applied mulch will moderate soil temperatures, reduce soil moisture loss, reduce soil compaction, provide nutrients, improve soil structure, foster beneficial microbial communities, and keep...

Tree defects such as co-dominant leaders, girding roots and buried trunk flares, present at time of planting, cause failures and decline long after the warrantee period has expired.  Landscape architects may go to nurseries to tag trees; but often...

Ice or snow loads can cause branch breakage or failure of entire trees and shrubs. Branches or entire trees that fall in storms can impact homes, vehicles, power lines and block roads. After a storm, the first priorities are safety and restoration of...

This project offers a blueprint for the ideal level of maintenance needed to keep this area of the garden aesthetically pleasing and well -kept into the future. Landscape management plans from other public gardens demonstrated a range of approaches and...