OPEN DAILY FROM DAWN UNTIL DUSK. 

What’s New

Bring your binoculars and get ready to search the skies!

Spring Bird Walks

As spring approaches, waves of birds travel from their winter habitats to their breeding grounds in Pennsylvania and points further north.

White trillium, Trillium grandiflorum, one of the wildflowers that has been planted along the Gerhold Wildflower Trail.

Gerhold Wildflower Trail Volunteer Sessions

The Arboretum is working to restore the Hartley Wood, a fragment of old-growth forest in the Arboretum’s natural areas.

Wild columbine, Aquilegia candensis, one of the many ephemeral wildflowers blooming in the Hartley Wood this spring

Explore the Wildflower Woods

What better way to celebrate Go Public Gardens Week (May 12–21) than with a walk in Hartley Wood, where wildflowers and trees are bursting with blooms?

Cyclamineus daffodil (Narcissus ‘Jetfire’)

Love the Spring Bulbs? Think about Fall!

Spring bulbs, like tulips, daffodils, and hyacinths, require a long period of dormancy and cold temperatures in order to flower.

Programs and Events

Use our events calendar to help you plan a visit to the Arboretum!

25 Mar

The Arboretum is working to bring native wildflowers back to Hartley Wood! Come give us the gift of your time and effort [...]

25 Mar

The Arboretum is working to bring native wildflowers back to Hartley Wood! Come give us the gift of your time and effort [...]

28 Mar

Volunteers who have completed an application and have arranged a start date with our volunteer coordinator can join our gardening staff on [...]

30 Mar

Volunteers who have completed an application and have arranged a start date with our volunteer coordinator can join our gardening staff on [...]