A new and distinct Rhododendron cultivar named ‘;NCRX1’; is disclosed, characterized by red-toned flower buds that mature into pink flower with wavy petal margins. Plants have a compact habit, are floriferous and consistent in flower production even at a young age, propagate readily from stem cuttings, and demonstrate good growth and survival when grown in full sun in unamended clay loam soils. The new cultivar is a Rhododendron, suitable for ornamental garden purposes.