RHODODENDRON Ponticum

An evergreen tree or shrub native to Spain, Portugal and Asia Minor. It can grow to a height of 20 feet, with a spread of up to 35 feet.  The leaves are oblong to lanceolate, dark green and glossy.  The flowers are funnel shaped, 1¾ to 2 inches across and deep, appearing in June in clusters of 10-15.  They are often purple, tinged with pink.
This species grows readily in many parts of Britain, and because of its invasive nature, is sometimes regarded as a forestry weed in lime-free areas.  However, it is useful in  forming a large windbreak or hedge.