THE LEAFLET

Order Our Newest Species Guide

We’ve updated one of the most popular Casey Trees resources to be even more user-friendly and informative! Get ready to purchase a one-stop guide to identifying trees in the Washington, DC area, our Species Guide.  First released in 2019, the Species Guide started as a home grown resource at our Park Inventory program. We couldn’t …

The Nine Lives of Christmas Trees

It’s officially a month since Christmas! Noting and the fact that DC will pick up holiday greenery with trash and recycling until February 5, we started to wonder what other purposes Christmas trees serve. Surely they can’t just be decorative. Thankfully we found some pretty cool and wide ranging options for the next life of …

Holiday Greenery Collection in DC Starts January 11

DC’s Department of Public Works will start collecting holiday trees and greenery curbside starting January 11 and going through February 5. Even better news? Items collected during this period will be composted and in the spring, the mulch will be provided to residents at no cost! Perfect for mulching your trees – a necessary component …

From the Archives: Winter Tree Care

Some helpful tips to consider while caring for your trees throughout the winter, whether it’s mild and warm or snowy and frigid – afterall, you never know what DMV weather will bring! Without leaves or buds, winter is a great time to inspect your trees. See anything unusual or worrisome? Trees may need structural pruning …

Tell the Difference Between Spruce and Pine Trees

Evergreens are usually easy to spot and conifers (trees that bear cones) are even easier to spot (especially when it’s winter!). But drilling down, how to identify conifers further? Here are some tips to tell pine and spruce trees apart.  Like deciduous trees (trees that drop their leaves when it’s cold), conifers can be identified …

Trees that Bring Wonder to Winter

With no snow and a whole lot of brown, black, and gray cities can be visually dull and dark in the wintertime. Brighten your view, yard, and mood with these trees that bring some much-needed winter interest. The American holly is a pyramid-shaped tree symbolizing the holiday season with its dark green leaves and red …

From the Archives: Pruning Tips

With frozen ground on the way, you may be wondering what else you can do in the coming winter cold to encourage healthy and sustainable tree growth. We have the answer: pruning (when necessary)! As you may know, we’ve historically partnered with the Urban Forestry Division to build out our Pruning Corps and although we …

Tell the Difference Between Spruce and Pine Trees

Evergreens are usually easy to spot and conifers (trees that bear cones) are even easier to spot (especially when it’s winter!). But drilling down, how to identify conifers further? Here are some tips to tell pine and spruce trees apart.  Like deciduous trees (trees that drop their leaves when it’s cold), conifers can be identified …

Mature Tree Care

A mature tree provides value to your home and street. It shades and cools the air, reduces energy consumption, removes pollutants, and adds beauty to your neighborhood. Older trees require less active maintenance than newly planted trees. A well-established tree will usually remain healthy in the absence of major stressors such as drought, construction, pests, …

Holiday Tree and Greenery Collection in D.C.

Holiday Trees and Greenery will be collected from December 27 – January 31. Trees and Greenery should be placed in front of residents’ homes or taken to the drop off locations where they will be composted and made available to residents at no charge. Please remove all ornaments and lights and do not place trees …

Winter Tree Care Tips

Some helpful tips to consider while caring for your trees throughout the winter, courtesy of our last major snowstorm in D.C.: Here are a few helpful tips to keep your trees happy: Inspect your trees. Trees may need structural pruning if they have damaged branches. Find pruning how-to videos on our website. Hire a certified …

The recent Polar Vortex was good for one thing: slowing the spread of Emerald Ash Borers

Remember just last week when temperatures dipped into the negative 20s in much of the upper plains? While most of that was terrible for humans, it turns out there is one potential upside: the dangerously cold temperatures could help in the fight against emerald ash borer. Emerald ash borer (EAB) larvae live in the bark …

Evergreens and Conifers: What’s the Difference?

While it’s true that the majority of conifers are evergreen (their green foliage stays for a year or more), the word conifer is not synonymous with evergreen -as we discovered with deceptively deciduous trees and unsuspecting evergreens. So just what is the difference between these two types? There is definitely overlap between the two classifications …

DPW is Now Collecting Holiday Greenery. Here’s How to Ensure Yours is Picked Up

It’s a winter wonderland outside in D.C., but inside, everyone is clearing out holiday decorations. For those who decorate with wreaths, trees, and other greens, this week the Department of Public Works will start collecting your discarded decorations. Holiday trees and greenery will be picked up from January 14 to February 2. You can either bring …

Unsuspecting Evergreens

While conifers (pines, spruces, etc) are the dominant kind of evergreen, there’s more than meets the eye to these winter wonders. Southern Magnolia (Magnolia grandiflora) The Southern Magnolia, an iconic gem of the south, is the granddaddy of magnolias with the largest specimens growing past 100 feet tall. You cannot mistake the leaves of the …