Species blue wood aster

blue wood aster

Symphyotrichum cordifolium

Blue Wood Aster (Symphyotrichum cordifolium) is a perennial wildflower native to eastern North America. It has a profusion of bright-blue daisy-like flowers with sunny yellow centres, which bloom from late summer into fall. It grows up to two feet tall, with deeply toothed, heart-shaped leaves. It prefers lightly shaded, moist to wet areas, such as along streams and in moist meadows. The aster's attractive flowers are a wonderful addition to any wildflower garden, bringing vibrant color to late summer and fall landscapes.

Cycle:

Herbaceous Perennial

Watering:

Minimum

Propagation:

Division,Cutting,Seed Propagation,Layering Propagation

Hardiness Zone:

3 - 8

Flowers:

Pale blue to rich blue with yellow centers Flowers

Sun:

Full sun,part shade

Soil:

Sandy Loamy Clay

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Care Level:

Medium

watering

Blue wood aster requires regular and frequent watering throughout the growing and flowering season. You should water your blue wood aster about 1-2 times per week, or more often during extended dry spells. It's important to check the soil moisture regularly to ensure that it is consistently moist (but not wet) at least 2 to 3 inches deep. Water thoroughly so that water is drawn down into the root zone, and do not water again until the soil is nearly dry. Watering in the late afternoon or evening is best to reduce the risk of fungal diseases.

sunlight

Blue wood asters require full sunlight for about 6-8 hours per day. This species of plant will thrive with ample sunlight, especially early in the morning or late in the afternoon. The bright light will give the plant enough energy to develop strong stems and bright flowers. When grown in direct light, the blue wood aster will be more likely to produce a larger number of flowers. In areas with more limited sunlight, the plant may be able to bloom but it will be less vigorous and the flower size may be reduced. As a general rule, during the flowering period, providing some shade in the afternoon hours will ensure better performance from your blue wood aster.

pruning

Blue wood aster benefit from pruning in the late winter or early spring, roughly between February and April, before new growth begins. The amount of pruning needed will depend on the size and shape desired. Large plants may require more pruning, while smaller plants may need only minor pruning. It's best to remove any dead, diseased, broken, or otherwise damaged foliage before pruning, as well as any stems that are crowded, misshapen, or otherwise unattractive. Prune back individual stems to just above a healthy bud or node. Trimming the whole plant back to its desired size can also be effective, as it encourages new, healthy growth and can help improve the overall shape and form of the plant.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Blue wood aster typically starts flowering in late summer or early fall, usually between August and October.

Starts Flowering

Blue wood aster typically starts flowering in late summer or early fall, usually between August and October.

Hardiness Map