Cool Plant: October 1, 2009
|New York Aster
|Species Native Range: N.E. U.S. & Canada
|Hardiness: USDA Zones 4-8
|Mature Size: 18-36 inches tall & wide
|Exposure: Full sun to partial shade
|Soil: Moist but well-drained
|Drought Tolerance: Excellent
|Ease of Culture: Easy
Fall has finally arrived and with it the last of the warm season blooming perennials. New York aster is a lovely plant that
sports 3/4 inch blue-lavender flowers with a yellow center over much of the plant. I will admit that when the plant is not
in bloom, it's not particularly attractive, but it makes up for it when the flowers arrive. Like mums, asters can be pruned
back by 1/3 in late May and again in mid July to make them more tidy and compact.
Plant New York asters in full sun to light shade in rich, moist but well-drained soil. Flowering is better in full sun and
plants growing in more shade tend to be leggy and flop. Prune the plant back to the ground after the first good frost and
fertilize them in the spring when new growth appears. Divide every few years to maintain vigor.
Use asters in a perennial bed, mixed shrub/herbaceous border, cottage garden, herb garden or meadow. They tend to have an
informal (some say unkept) appearance when not in bloom. Good companion plants include mums, late-blooming salvias such
as Autumn sage (Salvia greggii), muhly grass, goldenrod and other fall flowering plants.
New York aster and many other asters are usually readily available especially at this time of year when in bloom.
Some online sources include:
North Creek Nurseries
Lazy S Nursery
If you have comments or questions about this article, please
Images & Drawings Copyrighted © 2009 by Theresa Schrum - All rights reserved