
Centaurea cyanus
Centaurea cyanus
Bachelor's button is an easy-going annual that thrives in full sun with minimal fuss — simply sow seeds directly in well-drained soil after the last frost. Water regularly but avoid waterlogging, as this plant is sensitive to soggy conditions. Deadhead spent blooms regularly to encourage a long and prolific flowering season.
Toxicity Warning
Known to be toxic to dogs, cats.
Care Level
Low
Sun
Partial Sun
Water
Moderate
Growth Rate
Moderate
Mature Height
12″ – 72″
Soil
loam
Life Cycle
Perennial
Spacing
9″
Watering Schedule
Every 7-10 Days • Water Moderately; Allow Soil To Dry Slightly Between Waterings
Soil pH
5 – 5.5
Temperature
-25° – 95°F
Mature Spread
up to 24″
Root Depth
Deep
Foliage
Medium
Native to
Attracts
Sources
Data: trefle, usda, aspca
Image: trefle.io — CC-BY-SA
No nurseries currently have this species in stock.