Monte Cassino aster (Symphyotrichum pilosum var. pringlei 'Monte Cassino') grows to 3 feet in height and is covered in white daisy-like flowers on mounded plants with wispy leaves in late fall. A native of North America, Monte Cassino — like all other species formerly included in the genus Aster — has been moved to other genera, based upon the results of DNA analysis. Plant Monte Cassino in full sun and in average soil, and avoid excessive fertilization to prevent plants from flopping over. This aster is beloved by bees and other pollinators stocking up on pollen and nectar before the onset of winter.