Holly, Mr. Poppins® WinterberryMr. Poppins Winterberry is a slow growing dwarf deciduous shrub with a vase like habit and rich green foliage that turns yellow in fall. Best planted in moist, slightly acidic well drained soils. Hollies are dioecious and need both male and female plants to produce fruit. Mr. Poppins is a male cultivar to pollinate other hollies, and an ideal pollinator for Berry Poppins. Ilex verticillata is a native food source for several animals and pollinators,