Henry Norweb Jr. Tree Allée

A walkway with seriously beautiful style.

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!

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