|'Arp' is regarded as the most hardy Rosemary cultivar. Originally found in Arp, Texas in 1972. It has thick, resinous, gray-green leaves with a lemony scent and has an open growth habit. It is hardy to -10F, or -23C.
Height 5', spread 3'.
Dense, bushy, upright, aromatic evergreen shrub. Leaves are narrow and linear, dark green and leathery, up to 2 inches long. Small, tubular blue flowers in whorls, up to 1/2 in long.
Rosemary is an excellent choice for making topiaries, and widely used in cooking especially Italian cuisine. A wonderful companion plant with roses. Weeping, pendulous varieties available too.