Mt. Cuba Center Research Report - Phlox for the Mid-Atlantic Region Mt. Cuba Center Phlox for the Mid-Atlantic Region - Page 11

SUN PHLOX Phlox amplifolia «««« Largeleaf phlox (Phlox amplifolia) is an exciting species that has never been used in horticulture prior to our evaluation. The foliage grows approximately 2' tall and is relatively immune to powdery mildew. In June, it produces large, airy inflorescences of pink flowers that rise 1-2' above the mass of foliage and continue to bloom for about six weeks. However, the most interesting thing about this species is its rhizomatous habit. Largeleaf phlox produces underground runners that slowly spread outward to form a large mass, similar to the way bee balm (Monarda spp.) grows, though not as aggressive. Such a habit could be very beneficial in meadows and naturalistic plantings where largeleaf phlox can be allowed to meander. Much of the outstanding garden performance of this species likely comes from its ability to grow in drier soils, especially compared to Phlox paniculata which requires consistently moist conditions. In the wild, Phlox amplifolia can be found growing in dry-mesic upland sites from Indiana south to Alabama, and from Arkansas east to Virginia. Further selection and perhaps hybridization of Phlox amplifolia could lead to more adaptable summer-blooming phlox for the garden. Phlox 'Minnie Pearl' «««« Phlox 'Minnie Pearl' was discovered along a Mississippi roadside by Karen Partlow and was originally thought to be a naturally occurring hybrid between Phlox maculata and Phlox glaberrima. However, more recent research suggests it is a selection of P. carolina ssp. carolina. This cultivar was introduced by Plant Delights Nursery who named it after famed country comedienn R֖RV&गBw&w2&FVǒ"rFB26fW&VBvF6rvFRfvW'2FP7&rFR֖FWrg&VRfƖvR26v77F&w&VVv6FG2FG0VWfVgFW"FRfvW'2&Rf6VBF7V&6VFW"&p