Rhododendron 'Mrs. Betty Robertson' Koster (Mrs. Betty Robertson Koster Rhododendron)

The Rhododendron 'Mrs. Betty Robertson' Koster is a beautiful evergreen shrub with large, vibrant yellow flowers. This cultivar is known for its compact growth habit and dense foliage. It blooms in late spring, adding a splash of color to the landscape. It reaches a height of 3-4 feet and spreads to a width of about the same size.