Western Aster (Symphyotrichum spathulatum or Aster occidentalis) is a small, native aster that features charming purple daisy-like flowers in the late summer and fall. The foliage is attractive before flowers appear, providing color and interest to the garden year round. Western Aster makes a charming addition to the front of cottage gardens, rock gardens, xeric gardens, or natural prairie and meadow plantings. It will gently self-seed in the surrounding area and is tolerant of different watering schedules.
Photo Credit: Matt Berger
Expected 2025 Availability- Late April to Early May
Western Aster
Irrigation Requirement: Very Low (Water to Establish), Low (1/2" every 10-14 days), or Moderate (1/2" every 7-10 days)
Mature Size: 8 - 30" tall
Spacing: 8 - 12" apart
Bloom Colors: Purple
Bloom Season: July - September or October
Hardiness Zone: 3 - 9
Light Requirement: Full Sun, can handle some light shade
Deer Resistant: Unknown
Salt Tolerant: Unknown
Soils: Plant in well draining sand, loam, or clay soil.
Plants in the Symphyotrichum family are host species for 1 known local pollinator. Western Aster is also a valuable pollen and nectar source for many pollinators, including specialist bees.