Sun or shade; rosemary is evergreen, with periodic clusters of lavender-blue flowers. The leaves are fragrant and edible; prostrate varieties can be used as groundcover or bank cover among salvias, grasses and other watersaver plants. Rosemary endures hot sun and poor soil with little watering, once established.
Although compact, even trailing rosemary can grow 2-3 feet tall and wide. Clip back lightly in spring and summer to shape, never removing more than one fourth of a branch in a growing season.
Although trailing rosemary is normally strongly evergreen, few survived the extended freeze of 2021 in central Texas; assume there can be losses if temperatures drop below 22F. Severely damaged plants can be replaced as they regrow fairly swiftly.