Home / Guides / Plant Files / Asteraceae

Sow Thistle, Prickly Sow Thistle

Sonchusasper

Upload Image Print Article
Sonchus asper by Floridian
View Gallery 11 photos
Upload Image Print Article
Family
Asteraceae (ass-ter-AY-see-ee)
Info
Genus
Sonchus (SON-chus)
Info
Species
asper (AS-per)
Info
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Textured
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Spacing
18-24 in. (45-60 cm)
Hardiness
Not Applicable
Danger
N/A
Bloom Color
Bright Yellow
Bloom Time
Late Winter/Early Spring
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Other Details
Category
Annuals
Water Requirements

Unknown - Tell us

Foliage Color

Unknown - Tell us

Where to Grow

Unknown - Tell us

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size

Unknown - Tell us

Other details
May be a noxious weed or invasive
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information

Unknown - Tell us

Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Bag seedheads to capture ripening seed
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Phoenix, Arizona

San Mateo, California

Milton, Florida

View this plant in a garden
One member has or wants this plant for trade

Featured Videos

Gardener's Notes:

Post Comment
0
positive
1
neutral
0
negative
Sort By:
Post Comment
Sort By:
M
M
melody
Benton, KY (Zone 7a) | August 2005 | neutral

I do not grow this plant, information only.

This little weed is found along roadsides and in waste places throughout North...Read More

Popular Plants
SEE ALL
Iris
Peppers
Hydrangeas
Hostas
Contribute to Dave’s Garden
Add a New Plant to the List
Featured
BUG FILES
(Anyllis leiala)
BIRD FILES
Cedar Waxwing
(Bombycilla cedrorum)
Quick Links
View All Families
View All Genera
View All Species
Freeze/Frost Dates
PlantFiles FAQ
Plants with no Photos
Contribute to Dave’s Garden
Add a New Plant to the List
Featured
BUG FILES
(Anyllis leiala)
BIRD FILES
Cedar Waxwing
(Bombycilla cedrorum)