Penstemon 'Stapleford Gem'

061-206 Penstemon 'Stapleford Gem'
Joy Creek Photo Archive (c) all rights reserved	Penstemon 'Stapleford Gem' is known in the trade as Penstemon 'Sour Grapes' but according to Graham Rice is actually P. 'Stapleford Gem.' Medium sized reddish purple flowers paling to violet at the lips. Medium width foliage. Summer to first frost. 3 ft. x 3 ft. Reddish Purple flowers *Sun Zones 7, 8, 9*
All of the garden hybrid Penstemons need full sun and well-drained soil. We mulch the crowns with 1/4-10 crushed gravel which discourages crown rot by letting water drain off the crown quickly. When planting Penstemons we fertilize them only lightly and then never again. Over fertilizing Penstemons promotes the development of lush soft growth which leads to excessive die back in the winter.