Spike Gayfeather (Liatris spicata)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Perennial

Spike Gayfeather
Liatris spicata


 
Features
Tall vertical plant with fine textured foliage the entire length of the stem. Interesting spike flowers that open from the top down.  
 
Culture
Moist well-drained soil in a full sun location. Good drainage is critical in maintaining the plant. Drought tolerant once established.  
 
Cultivars

'Kobold' 18-24 inches tall, compact habit, lavender flowers

'Floristan Weiss' 18-24 inches tall, creamy white flowers

'Floristan Violet' 3 feet tall, purple flowers

 
 
Mature Height
2-3 Feet
 
Size
Medium
 
 
USDA Hardiness Zone
3 - 9 
 
Bloom Color
Lavender
Purple
White
 
 
Bloom Season
July - August
 
Soil Conditions
Moist, Well-Drained
 
 
Exposure/Light Requirements
Full Sun
 
 
Foliage Color
Green
 
 
Pests and Problems

Environmental Damage

Fungal Disease


Additional pests and problems that may affect this plant:

Rhizoctonia, Cercospora, verticillium, botyris
 
Additional Notes
Good drainage is critical especially over the winter. May need staking. Attracts butterflies and hummingbirds. Reported to be deer resistant.

 

 
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