Rosemary 'Arp' does best in full sun areas where winter temperatures do not drop below 10 degrees F, reaching 3-4' tall and wide. Evergreen, small needle-like, gray green, aromatic leaves are upright. Small blue flowers dot the foliage from spring through summer, attracting hummingbirds. Leaves are great for cooking. This herb can be pruned for topiaries. It is drought tolerant once it's established, preferring, dry, well draining soil.