The line between whether a plant is a "tree" or a "shrub" is sometimes very thin and quite blurry! We use the following criteria to decide which type applies to a certain plant:
Abelia chinensis 'Compact' Pick-up ONLY
Ilex aquifolia 'Night Glow' Pick Up ONLY
Magnolia x 'Stellar Ruby'
Mahonia 'Beijing Beauty'
Osmanthus fragrans 'Tea Olive'
Osmanthus fragrans var. aurantiacus
Viburnum plicatum 'Summer Snowflake'