New York Aster, Michaelmus Daisy (Aster Novi-belgii)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers


New York Aster, Michaelmus Daisy
Aster Novi-belgii

Taller version of aster good for the back of the border. Excellent late summer early fall flowering, Will spread and form large clumps. 
Prefers rich high organic matter soils that are well-drained and in a full sun location. 

'Prof. Kippenburg' 12-18 inches tall short, compact, lavender-blue flowers

'Purple Dome' 2-3 feet tall, strong grower, multi branched, purple flowers

'Celeste' 18-24 inches tall, late bloomer, blue flowers with yellow centers

'Crimson Brocade' 2-3 feet tall, semi double crimson flowers

'Painted Lady' 3 feet tall, pink flowers

Mature Height
1-4 Feet
USDA Hardiness Zone
4 - 8 
Bloom Color
Bloom Season
August - October
Soil Conditions
Moist, Well-Drained
Exposure/Light Requirements
Full Sun
Foliage Color
Pests and Problems

Environmental Damage

Fungal Disease

Insect Damage

Insect Relative Damage

Phytoplasma Disease

Additional pests and problems that may affect this plant:

Powdery mildew, rust, verticillium wilt, fusarium wilt, aphids, mites, slugs, aster yellows
Additional Notes
Provide good air circulation to lessen disease problems. Divide every 2 years to keep them vigorous and to control their spread. Cutting back by one-half in mid June can help control the height and produce a more compact plant. Attractive to butterflies.


Related Resources
Home, Yard & Garden Pest Guide
Illinois Commercial Landscape and Turfgrass Pest Management Handbook
U of IL - Distance Diagnosis through Digital Imaging
U of IL - Plant Clinic