Pittosporum sp. ....there is an unanswered demand for good, interesting, shade tolerant broad-leafed evergreens

Maybe this could answer that call; it's a pleasing upright vase-shaped plant, less than 15 feet tall, with small fragrant flowers. It's clearly hardy here in USDA Zone 7, and doesn't seem to show any invasive tendencies, though it does have those red fruit that birds have a tendency to distribute. This plant is just down the main steps in the Asian Collection in the bed on the left-hand side.