White Aster
Symphyotrichum lateriflorum
An herbaceous perennial plant featuring branching stems covered in numerous small, daisy-like white flowers with contrasting central disks, set against deep green foliage.
- Light
- Full sun to partial shade, requiring at least 6 hours of direct sunlight daily.
- Water
- Water deeply when the top inch of soil feels dry. Highly adaptable but benefits from consistent moisture during establishment and prolonged dry periods.
- Growth
- Upright, branching perennial reaching heights of 2 to 4 feet with a similar spread, growing at a moderate to fast pace.
Care instructions
Provide full sun to partial shade in well-drained soil. Water moderately during dry spells to maintain soil moisture, and apply a balanced fertilizer in spring if growth is sluggish.
Growing details
Sunlight
Full sun to partial shade, requiring at least 6 hours of direct sunlight daily.
Watering
Water deeply when the top inch of soil feels dry. Highly adaptable but benefits from consistent moisture during establishment and prolonged dry periods.
Soil
Prefers loamy, well-draining soil with a neutral to slightly acidic pH range between 6.0 and 7.0.
Hardiness zone
USDA zones 4 through 8, demonstrating strong winter cold tolerance.
Growth habit
Upright, branching perennial reaching heights of 2 to 4 feet with a similar spread, growing at a moderate to fast pace.
Bloom season
Blooms from late summer through autumn, producing clusters of small white flower heads.
Propagation
Propagate by division in early spring or by sowing seeds directly in autumn after a period of cold stratification.
Common pests & issues
Susceptible to powdery mildew and rust in humid conditions; watch for aphids and leaf miners.
Similar species
Can be confused with other white-flowered aster species, but distinguished by its specific branching pattern and smaller flower head arrangements along the stems.