Aster azureus - Sky Blue Aster

Aster species in general are essential fall pollinator plants and should be included in native garden designs large or small. Sky Blue Aster (Aster azureus) can grow in a variety of soil conditions and full sun to partial shade. This native species typically reaches heights of 1 to 4 feet and has light blue to violet flowers.

It is most commonly found in mesic to dry soils in prairies, savannahs and rocky upland woods.

The flowers attract a wide variety of insects including bees, and other pollinators which seek its pollen and nectar. It is particularly attractive to Monarch butterflies during their migration. 

Its fibrous root system holds soil in place and helps control erosion. This species blooms from late summer well into the fall and add color and structure to prairie plantings.

There are 80,000 seeds per ounce. A little goes a long way.

How To Plant Sky Blue Aster Seeds:

Direct sow seeds into prepared soil in late fall once soil temps are below 50 degrees (usually mid to late November). Can also be planted in winter during natural freeze/thaw cycles and early spring. Plant shallow, no deeper than 1/8 to 1/4 inch deep and lightly rake to work seed in. Plant in full sun to partial shade. Can take 3 growing seasons to fully establish.

Seed Info

Seed Envelopes contain approximately 0.02 ounces of seed and cover about 5 to 10 square feet. 

Product Details

Flower Color: Blue or Violet

Height: 1 to 4 Feet

Light Requirements: Full Sun to Shade

Soil Hydrology: Dry to Moist Soils

Bloom Time: August to October

Plant Type: Perennial

Stratification: None

Attracts: Bees, Butterflies

Product Code: AST01F