Magnolia x brooklynensis is a magnificent, tree that will be evergreen or deciduous depending on your local climate.
It is conically shaped with green, ovate leathery leaves and bears wonderfull fragrant, creamy to primrose yellow, cup-shaped flowers in springtime.
Flower buds are frost tender though so ensure it is protected from cold spring winds which will damage the delicate flowers - though the tree itself will survive frosts.
This magnolia is quite beautiful, and all the more so as yellow is a rather unusual colour in Magnolias.