Arboretum Notes

March 2026 – Marcesence
The mechanism by which trees drop their leaves in autumn is called abcission, but in certain families of trees the process is delayed until spring.

February 2026 – Rancocas Creek
One of the great assets of the Medford and Lumberton campuses of Medford Leas is that they are both situated along branches of the Rancocas Creek.

January 2026 – The Holly
During the dark months of winter the hollies in our landscape shine. Two varieties of hollies are native to our ecoregion. They are the standouts in our winter landscape.

October 2025 – Medford Leas Big Tree Champions
Did you know that our Barton Arboretum and Nature Preserve is home to four of New Jersey’s Big Tree Champions? Two of the trees are State Champions (i.e., the largest recorded) and three have Signature Status for their uniqueness.

April 2025 – An Early Harbinger of Spring
What was this insect that flew out of the compost bin on my garden plot at the Farm? I pulled out my iPhone and managed to get a decent photograph. Back home, with the help of a phone app, I identified the insect