In addition, a specimen raised from seed survives on Founder's Green, Haverford College, and is perpetuated by selfed seedlings gathered by the arboretum staff in autumn.
In addition to its cultivation from seed, this plant also thrives on Founder's Green, Haverford College, and is sustained through a process of self-propagation, where the arboretum staff collects seedlings grown from the same plant each fall.