Acanthus mollis is a great groundcover perennial plant, loved by insect wildlife.
Stately columns of white/purple flowers in July & August, 90-120cm tall.
Sow Bear's Breeches from March to May. Acanthus germinates in 5 weeks at 18-20C, flowering in 2nd year.
Spread 90cm. Acanthus spreads to form broad clumps.
Sensitive to humidity, prefers moist humus-rich soil in shade or partial shade.http://practicalplants.org/wiki/Acanthus_mollis