(DC) (Casey Trees) Spend the day with Casey Trees as we care for young trees around Catholic University, sponsored by MedStar Health! We will start the day with a training on young tree care, where we will learn all about proper mulching, watering, planting techniques, and more. We will then apply this learning in real time as we mulch and ...
(DC) (Friends of the National Arboretum) Get in the holiday spirit at the National Arboretum! FONA’s Winter Festival returns this year. Buy your Christmas tree and shop from 30+ local artisans in the gift vendor village, take a holiday train ride around the Capitol Columns, and enjoy free family-friendly activities! There will also be plenty of hot chocolate and caroling ...
(VA) (Arlington Parks) Arlington hosts a diverse cast of over 50 native tree species! Join us for a light walk to learn how to identify trees without leaves or flowers, by looking at their buds, bark, and other features. Teens age 14 and up are welcome to attend with a registered adult.
(MD) (Nature Forward) Ever wanted to know what type of tree you were looking at and despaired because there were no leaves? Never fear, help is here! Join Habitat Manager Bradley Simpson for a winter stroll at Sugarloaf Mountain. On this walk, we’ll enjoy December along the trail and learn how to approach identifying trees when their branches are mostly ...
(MD) (Montgomery Parks) Winter is the time when our evergreens shine! Maybe you know that every evergreen tree isn’t a pine, but is it a cypress? A juniper? A cedar? Join us on a hike through Wheaton Regional Park to take a closer look at evergreens.
(VA) (EcoAction Arlington) Apply to have a tree planted on your property. All private property in Arlington is eligible to have a native tree planted on the property through EcoAction Arlington's Tree Planting Program. Applications are open until January 14th, 2026!
(DC) (Casey Trees) Get Free Trees to accentuate your home with a beautiful shade tree at no cost. To register, submit an application with Casey Trees and one of their professional Urban Foresters will be in touch to start your process.
(DC) (Rhizome) Need a reason to get outdoors this winter? Are you wondering what trees do in the cold? This class will explore the biology and identification of trees in winter with botanist and herbalist Holly Poole-Kavana. Class is divided into two sections: 10:30am to noon will be held indoors (in-person) to learn about the characteristics that are useful for ...
