The leaves of Buddleja saligna are opposite and shaped narrowly elliptic to almost linear. The apex and the base of the leaf both taper, although the base may sometimes be rounded and the tip spiny. The leaf surface is dark green above, lighter and hairy or roughly scaled below with marked net-veining. The margins are entire and rolled under.
The honey-scented flowers appear in large axillary and terminal heads from late winter into summer. They are white or cream, sometimes with a little red in the corolla throat, from which the anthers protrude (Coates Palgrave, 2002; Schmidt, et al, 2002).