Brown knapweed
Centaurea jacea
Centaurea
Asteraceae
Native Plants
Zone 4–10
🐾 Pet-Safe
🌱 Beginner Friendly
Brown knapweed is a tough perennial wildflower that thrives in poor soils with minimal care. Plant in full sun to partial shade and water sparingly as it prefers dry conditions once established. This pollinator-friendly plant self-seeds readily and provides long-lasting purple blooms throughout summer.
Care Requirements
Care Level
Low
Sun
Partial Sun
Water
Moderate
Growth Rate
Moderate
Mature Height
24″ – 60″
Soil
sandy loam
Life Cycle
Perennial
Spacing
12″
Watering Schedule
Every 10-14 Days • Water Moderately, Allow Soil To Dry Between Waterings
Soil pH
6.5 – 7
Temperature
-30° – 95°F
Mature Spread
up to 24″
Root Depth
Deep
Foliage
Medium
Propagation: Seed
Ecology & Origin
Native to
Albania
Algeria
Altay
Austria
Baltic States
Belarus
Belgium
British Columbia
Bulgaria
California
Central European Rus
Connecticut
Corse
Czechoslovakia
Delaware
Denmark
East European Russia
Finland
France
Germany
Attracts
🐝 Bees
🐝 Butterflies
Safety & Use
⚕ Medicinal
🐾 Pet-safe
Sources
Data: trefle, usda
Image: trefle.io — Taken Oct 12, 2018 by joselu (cc-by-sa)
Hardiness Zones
1
2
3
4
5
6
7
8
9
10
11
12
13
Available From (1)
Carson Canopy Growers
47 in stock1gal
pickup
selfDelivery
$48.99