Sow Thistle, Prickly Sow Thistle
Sonchus asper

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Sonchus (SON-chus) (Info)
Species: asper (AS-per) (Info)

Category:

Annuals

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

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

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us

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

Sun Exposure:

Full Sun

Sun to Partial Shade

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

Foliage:

Shiny/Glossy-Textured

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 has been said to grow in the following regions:

Phoenix, Arizona

Menifee, California

San Mateo, California

Milton, Florida

Roswell, New Mexico

Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Positive

On Oct 3, 2010, sherman99 from Menifee, CA (Zone 9a) wrote:

bees love this plant. wish i had more of them. no trouble to grow, however, my neighbors think i am nuts for having this "weed" in my garden

Neutral

On Aug 24, 2005, melody from Benton, KY (Zone 7a) wrote:

I do not grow this plant, information only.

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

The yellow flowers look like dandelions and the stems contain milky sap. It is an annual and reseeds with abandon.

All sow thistles can be used as potherbs.