Rough milk thistle
Sonchus asper
Sonchus
Asteraceae
Native Plants
Zone 4–10
🐾 Pet-Safe
🌱 Beginner Friendly
A robust annual or short-lived perennial that self-seeds readily in disturbed soils. Produces yellow dandelion-like flowers that attract pollinators throughout the growing season. Thrives with minimal care in sunny locations.
Care Requirements
Care Level
Low
Sun
Partial Sun
Water
Moderate
Growth Rate
Moderate
Mature Height
24″ – 60″
Soil
sandy loam
Life Cycle
Perennial
Spacing
18″
Watering Schedule
Every 10-14 Days • Water Moderately, Prefers Well-Draining Soil
Soil pH
7 – 7.5
Temperature
-30° – 95°F
Mature Spread
up to 36″
Root Depth
Deep
Foliage
Medium
Propagation: Seed
Ecology & Origin
Native to
Afghanistan
Alabama
Alaska
Albania
Alberta
Algeria
Altay
Amur
Angola
Antipodean Is.
Arizona
Arkansas
Assam
Austria
Azores
Bahamas
Baleares
Baltic States
Bangladesh
Belarus
Attracts
🐝 Bees
🐝 Butterflies
Safety & Use
⚕ Medicinal
🐾 Pet-safe
Sources
Data: trefle, usda
Image: trefle.io — Taken Dec 3, 2021 by Jardin Des Cocagnous (cc-by-sa)
Hardiness Zones
1
2
3
4
5
6
7
8
9
10
11
12
13
Available From (1)
Lakewood Garden Center
23 in stock1gal
pickup
selfDelivery
$59.84