Landscape Value:
The green ash is an extremely adaptable and fast-growing tree.
It transplants easily, can survive almost anywhere, and is found
in the wild, often growing next to streambeds. For these reasons,
the tree has been widely used for lawns, parks, and streets. It
is considered overused by some experts. Green ashes are handsome
all-purpose shade trees but do suffer from a variety of pests and
diseases. A healthy tree in a prime location can avoid most of these
problems, but homeowners should beware. Watering during times of
drought can keep these trees vigorous and help to avoid pests. The
green ash is also weak-wooded and susceptible to breakage. It is
best to grow seedless cultivars of known good form than to trust
your landscape to seedling trees. They are better-suited for parks
than yards.
Seasonal Characteristics:
- Summer: The green ash is an adequate shade tree and has lustrous
medium-to dark green leaves. The irregular habit of seed-propagated
forms can be less appealing than many other shade trees.
- Fall: Leaves can turn a spectacular yellow but are variable,
and often color is not good. Samaras, fruits similar to the winged
fruit of maples, form in August and persist on into the winter.
They can be heavy and unsightly as well as a maintenance problem,
for they freely seed themselves anywhere they gain a foothold.
Fruitless (male) varieties are available and definitely recommended.
Cultivars for improved fall color are available as well.
Points of Interest:
The wood of green ash is heavier than that of white ash, but it
resembles white ash in most of its desirable characteristics, including
strength and durability. Native Americans used ash for medicinal
purposes, and the seeds were considered an aphrodisiac.
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