Alphabetical Plant Listing

Symphyotrichum pilosum (Hairy Aster)

Awl Aster, Hairy White Oldfield Aster, Frost Aster, White Heath Aster, Downy Aster, Aster pilosus


Providing a good display in the late season garden, Symphyotrichum pilosum (Hairy Aster) is a robust herbaceous perennial boasting numerous branched stems smothered by sprays of tiny star-like white flowers in late summer and fall. Rising from the stem tops and upper leaf axils, each blossom features 15-35 white rays surrounding a center disc packed with pale yellow disc flowers. The disk flowers change from yellow to reddish with age. Blooming for 4-6 weeks, the flowers are followed by a dry seed (achene) that matures in late fall and is distributed to new locations by wind. The stems are clad with alternate, lance-shaped leaves, 1-4 in. long (2-10 cm), with a smooth margin. Green above and gray below, they significantly decrease in size as they ascend the stems. After flowering, basal leaf rosettes appear and persist over winter. Both the stem and leaves are covered with fine hairs. Native to upland prairies, weedy meadows, pastures, open woodlands of North America, Hairy Aster is easy to grow, low maintenance and is not affected by any serious pests or diseases. It is, however weedy in most of the eastern U.S. and may not be suitable for small gardens due to its tendency to readily spread by seed. Hairy Aster grows well in dry conditions and in rocky or sandy soils. It is an important nectar and pollen source for many insects in the fall.

  • Grows with a bushy habit, up to 2-4 ft. tall and wide (60-120 cm). Can spread aggressively by self-seeding.
  • Thrives in full sun in sandy or rocky, dry to mesic, well-drained soils. Appreciates some afternoon shade in hot summer areas. 
  • Vital ingredient of late summer and fall borders, cottage gardens, prairies or butterfly gardens.
  • No serious pest or disease issues.
  • Removal and disposal of seeds before maturity lessens the degree of spreading.
  • Pinch stems back in late spring to early summer to control the plant size.
  • Propagate by seed.
  • Native to North America.

Not sure which Asters to pick?
Compare All Asters

Buy Symphyotrichum pilosum (Hairy Aster)

Requirements

Hardiness 4 – 8
Plant Type Perennials
Plant Family Asters
Exposure Full Sun, Partial Sun
Season of Interest Summer (Late)
Fall
Height 2' – 4' (60cm – 120cm)
Spread 2' – 4' (60cm – 120cm)
Spacing 36" – 48" (90cm – 120cm)
Water Needs Low, Average
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, Northeast, Connecticut, Delaware, Maine, Massachusetts, Maryland, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Southeast, Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia, Southwest, Oklahoma, Texas
Tolerance Dry Soil, Rocky Soil
Attracts Butterflies
Garden Uses Beds and Borders
Garden Styles Informal and Cottage, Prairie and Meadow

Buy Plants

Great Plant Combination Ideas with Asters

Guides with Asters


Joshua Mayer, Flickr, Balaraju Kotnala, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 8
Plant Type Perennials
Plant Family Asters
Exposure Full Sun, Partial Sun
Season of Interest Summer (Late)
Fall
Height 2' – 4' (60cm – 120cm)
Spread 2' – 4' (60cm – 120cm)
Spacing 36" – 48" (90cm – 120cm)
Water Needs Low, Average
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, Northeast, Connecticut, Delaware, Maine, Massachusetts, Maryland, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Southeast, Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia, Southwest, Oklahoma, Texas
Tolerance Dry Soil, Rocky Soil
Attracts Butterflies
Garden Uses Beds and Borders
Garden Styles Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Asters

Guides with Asters

Plant Calculator

How many Symphyotrichum pilosum (Hairy Aster) do I need for my garden?

%
ft
ft

Your Shopping List

Plant Quantity
Symphyotrichum pilosum (Hairy Aster)

Find your Hardiness Zone

Find your Climate Zone

Find your Heat Zone

Join Gardenia.net

Create a membership account to save your garden designs and to view them on any device.

Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

Join now and start creating your dream garden!

Create a New Collection

Optional. For your reference.


Move Selected Plants to a Different Collection


Delete Collection

This field is required.