Blazon&colon; Azure a sea holly argent. Common names include sea holly and holly mangrove. Until the 1970s, the rare sea holly could still be seen in the dunes. The flora includes seakale, sea holly, and yellow-horned poppy. His first novel, "Sea Holly", was published in autumn 2007. Sea holly ("Acanthus ilicifolius") and other salt-tolerant plants grow in drier parts. Sea holly was nominated the 2002 County flower for the city of Liverpool.