Tip #7: Siberian Chrysanthemum (Chrysanthemum weyrichii)
While tender nursery florist mums often suffer root death during early freezes, the Siberian chrysanthemum is an exceptionally rugged, true perennial species built specifically for northern winters. Native to harsh cold climates, this low-growing plant forms dense carpets of dark green leaves 8 to 12 inches high, sending up masses of two-inch, soft pink or white daisy blossoms in late autumn.
Cold hardy from USDA Zone 3 down to Zone 9, cultivars like ‘Pink Bomb’ and ‘White Bomb’ do not even begin blooming until October, continuing through hard freezes down to 20°F (-6°C). Siberian chrysanthemums require full sun and well-draining, gravelly or sandy soil to prevent winter crown rot. Plant them along walkway borders, rock gardens, or at the front of perennial beds where their low profile creates a dramatic late-season border. Their extreme frost resistance makes them a centerpiece for late-fall color when virtually all other garden plants have surrendered to the cold.
