Aster Care Instructions

by Lawson Thalmann

For over 100 years, Chalet has been the trusted go-to destination for Chicagoland gardeners. Our horticultural experts have crafted care instructions with the unique characteristics of our local soil and weather in mind, so that you can feel confident helping your plants flourish.

Planting

Location:

Asters thrive in full sun but can tolerate partial shade, especially in hotter climates. They prefer well-drained, loamy soil enriched with organic matter.

Spacing:

Space Aster plants 12-24 inches apart, depending on the variety, to allow for good air circulation and to prevent overcrowding.

Watering

Keep the soil consistently moist, especially during dry periods. Asters prefer regular watering but avoid waterlogging the soil. Mulching around the base of the plants can help retain moisture.

Fertilizing

Apply a balanced, slow-release fertilizer in the spring to encourage healthy growth and abundant blooms. A light application of compost can also be beneficial.

Pruning

Deadhead spent flowers regularly to promote continuous blooming throughout the fall. Cut back the stems to about 2-3 inches above the ground in late fall or early spring to tidy up the plant and encourage healthy growth in the next season.

Mulching

Apply a layer of organic mulch around the base of the plants to help retain moisture, suppress weeds, and protect the roots during winter.

Aster, Smooth Blue

$14.99

Smooth Aster has masses of beautiful lavender daisy flowers with yellow eyes at the ends of the stems from late summer to late fall, which are most effective when planted in groupings. The flowers are excellent for cutting. Its narrow leaves remain dark green in color throughout the season.

Quantity

Plant Care Essentials

Sustainable Gardening

106 items

Soil + Mulch

110 items

Fertilizers + Amendments

83 items

Sprinklers, Hoses + Watering Cans

15 items

Gardening Tools

72 items

Lawson Thalmann

Vice President, Part-Owner, Sustainability Chair, CTO

Lawson represents the 4th generation of Thalmanns at Chalet. He currently heads up technology and sustainability efforts while also engaging the community through events like meditation and content like blog posts. He is passionate about helping the North Shore community engage with nature as a means for both physical and mental well being. He lives in Wilmette with his wife Kit and two children, Quinn and Lane.