Henry Norweb Jr. Tree Allée
A walkway with seriously beautiful style.
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The Norweb Tree Allée was dedicated in 2013, making it one of the Arboretum’s newest features. It honors the memory of R. Henry Norweb Jr., who led the institution from 1959 – 1983.
Holden’s allée offers a modern spin on a classic gardening element. As opposed to featuring a single species, we lined the walkway with five different varietals that will grow to provide guests with a shaded walkway as they travel between the Display Garden and the Eliot and Linda Paine Rhododendron Discovery Garden.
This reflects our commitment to biodiversity and will help preserve the integrity of the allée from any pathogens that may affect one of the species, so the trees can thrive for generations of guests to come.
You may notice works in progress under the diverse tree canopy. In a five-year program of reimagination, the under-story is being transformed with new shrubs, herbaceous perennials and bulbs. Each year a swath of colorful annuals will emerge in late summer to take us through the fall. In 2022 (year three of our renovation ) you might spot new shrub plants which begin to form a hedge along both boundary lines, see evidence of how the soil has been leveled and improved using the chemical-free process of ‘lasagna’ mulching – cardboard and a thick layer of mulch. Then watch as late summer annuals germinate and fill the scene with color when least expected. Can you guess this year’s color scheme? It’s a challenge to keep geese away from the Tree Allee so the horticulture team utilize a simple stringline to keep them away!
Things to Discover
Colorful annuals | Annuals brighten up the pathway with vibrant color and variety.
Pollinator-friendly plants | Many of the various plantings attract pollinators, like this monarch on a Zinnia Heuchera.
Cool gall on a Quercus bicolor | There are five different species of trees, such as the Quercus bicolor pictured here.
Here’s more to explore at Holden Arboretum
Little Mountain
Formerly the site of resort hotels where Cleveland’s wealthy residents escaped the summer heat, Little Mountain is now home to towering white pines, diverse plant communities, unique geological formations, and... more
Helen S. Layer Rhododendron Garden
Warren H. Corning founded our rhododendron collection in 1940. And in 1971, contributions made in honor of Helen S. Layer allowed for the creation of a surrounding, 20-acre garden. This... more
Conifer Trail
View stunning vistas and field nesting birds on this trail south of the Rhododendron Layer Garden heading towards the Conifer Collection. more
Kalberer Emergent Tower
The Emergent Tower is 120 feet (or approximately 12 stories) tall, which allows for a breathtaking, 360 degree, unrivaled view of the surrounding area. Guest can see all the way... more
Buckeye Bud’s Adventure Woods
Buckeye Bud’s Adventure Woods is a wonderfully whimsical playground where kids can hop, jump, and limbo their way through the balance logs, put on a performance at the Nature Theater,... more
Can’t Miss Family Attractions
Ready to trade screentime for greentime? Whether your kids are college age or pre-Pre-K, a day at Holden Arboretum is always fun, educational, and immersive for the whole family. Everyone... more
Eliot and Linda Paine Rhododendron Discovery Garden
Immerse yourself amongst a beautiful plant group as you stroll through the Eliot and Linda Paine Rhododendron Discovery Garden. This area hosts three separate vignettes that examine: The Eliot and... more
Murch Canopy Walk
The Canopy Walk invites guests to stroll along a 500-foot-long elevated walkway that rises 65 feet above the forest floor. Walk amongst the treetops, and appreciate our forest from an... more
Corning Lake Trail
This trail leads you through a great birding spot, particularly warblers during migration in May, and even some migratory ducks. more
