spherically growing form. older trees have a deep furrowed bark and young branches are strongly thorny, the cultivar does not bloo

acacia alley are bare bark beautiful bird bloo bloom blue branch branches centre circle city cultivar cultivation deep does drought dry form furrowed garden group growing habitat hardy have hybrid landscape natural nest not old older ornamental outdoor park plant plantings pseudoacacia robinia round scenery season shape sky soil solitaire solitary spherically street strongly suitable sun sunny sunset thorny tolerance top tree treeline trees umbraculifera urban use view wall winter young