Spiky Squares

During the month of March, Becky, Queen of the Square format, is back. This month she would like to see anything spiky, jagged, bristly, serrated, prickly or barbed in whatever interpretation you like. The only rule: it must be a square.
March Squares

Mahonia ‘Charity’ – Slender spikes of pale yellow flowers appear from November to March, above rosettes of large, handsome, dark green, holly-like leaves.