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I love the color of Aster ‘Purple Dome’ even more than ‘Vibrant Dome’:
This New England Aster grows 18-24 inches tall and blooms in September and October. Like ‘Vibrant Dome’ (which is a sport of ‘Purple Dome’) this aster grows in a nice upright clump. The plants are mildew-resistant and hardy in Zones 3-8.
Whether you you’re a fan of royal-purple like ‘Vibrant Dome’…
…or dark-purple like ‘Purple Dome’ (below), these asters will give you weeks of gorgeous flowers in late-summer and early fall.