They can be either. If the plant is allowed to grow freestanding with a single trunk it will become a tree, if it is grown multi-stemmed or trained against a wall it will grow as a shrub.
Camellias are evergreen shrubs and small trees, over 250 species. They are popular for their abundance of showy (and real) flowers
Several flowering bushes that tolerate shade are Abelias, Camellias, Hydrangeas, and Mountain Laurel shrubs.
32 SHRUBS AND 8 TREES.
William Jackson Bean has written: 'Trees and shrubs, hardy in the British isles' -- subject(s): Shrubs, Trees 'Trees and shrubs, hardy in the British isles' -- subject(s): Shrubs, Trees
A. Glen Ryan has written: 'Native trees and shrubs of Newfoundland and Labrador' -- subject(s): Shrubs, Trees 'Shrubs of Newfoundland' -- subject(s): Shrubs
Some trees and shrubs would go a long toward improving your property's 'curb appeal'. Trees and shrubs add value to real estate. The trees and shrubs are selected particularly for their scents, in some gardens.
I don't think you can get free trees or shrubs without someone giving them to you for free.
trees and shrubs
Alfred Rehder has written: 'Manual of cultivated trees and shrubs hardy in North America, exclusive of the subtropical and warmer temperate regions' -- subject(s): Woody plants, Trees, Shrubs 'Manual of cultivated trees and shrubs hardy in North America' -- subject(s): Shrubs, Trees, Botany 'Bibliography of cultivated trees and shrubs hardy in the cooler temperate regions of the Northern Hemisphere' -- subject(s): Bibliography, Shrubs, Trees 'Synopsis of the genus Lonicera' -- subject(s): Lonicera
John A. Grant has written: 'Trees and shrubs for Pacific Northwest gardens' -- subject(s): Landscape gardening, Ornamental shrubs, Ornamental trees, Ornamental woody plants, Shrubs, Trees
trees or shrubs
Trees and shrubs do not need a lot of feeding but a scattering of general fertiliser in the Spring will suffice.