Both Uses

arbor
in
A Good Man is Hard to Find
(Edited)

She said the house had six white columns across the front and that there was an avenue of oaks leading up to it and two little wooden trellis arbors on either side in front where you sat down with your suitor after a stroll in the garden.

arbors = frameworks that support climbing plants
She knew that Bailey would not be willing to lose any time looking at an old house, but the more she talked about it, the more she wanted to see it once again and find out if the little twin arbors were still standing.
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Definitions:

(1) (arbor as in: shaded arbor)
a framework that supports climbing plants; or a shady rest area made by such a framework or by trees and shrubs

The framework of an arbor is generally thought of as a wood lattice made to support vines, but it can also be a natural framework such as trees.
(2) (meaning too rare to warrant focus)
Less commonly arbor can be used as a proper noun to reference a location such as Ann Arbor, Michigan. As a common noun, it can also reference various types of rotating machine shafts.