Gibraltar Azalea Gibraltar Azalea has one of the most popular and reliable of the Exbury Azaleas. Beautiful orange blossoms. Hardy and mildew resistant shrub. Primary Color: Orange Bloom Time: Midseason Height in 10 Years: 4' Hardiness (Temperature): -15 Sun / Shade: Morning Sun, Afternoon Shade Landscape Category: Shrub Genus: Rhododendron More plants in: Azalea Find out if this plant is available: Rhododendron and Azalea Availability List