Magnolia sargentiana robusta is pretty much full out up the street from me, here in Edmonds. Mid-March is typical time for it and its close relations to be peaking at the Seattle arboretum. Look for them near Arboretum Drive, down in the south end where the camellias are concentrated. These are the most magnificent flowering trees we can grow here. Nothing else has the same combination of massed huge, fragrant flowers on the bare branches of a medium-large tree.