Low water once established; water deeply, then allow soil to dry between waterings. Irrigate more frequently during establishment and extreme summer heat, especially in containers.
Trailing rosemary (Salvia rosmarinus ‘Prostratus’, formerly Rosmarinus officinalis) is an aromatic, low-growing shrub with cascading stems and narrow, needlelike leaves.
Light: Full sun to light shade; afternoon shade is beneficial near heat-reflective walls and pavement in Phoenix.
Water: Low water once established; water deeply, then allow soil to dry between waterings. Irrigate more frequently during establishment and extreme summer heat, especially in containers.
Soil: Very well-drained sandy or gravelly soil; tolerates alkaline soil. Use raised planting areas where heavy clay drains poorly.
Mature size: 1–2 feet tall and 4–6 feet wide; stems cascade farther over walls.
Bloom: Primarily winter through spring in Phoenix, with occasional blooms during other mild periods.