Common Groundsel
Senecio vulgaris

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Senecio (sen-ek-ee-o ) (Info)
Species: vulgaris (vul-GAIR-iss) (Info)

Category:

Annuals

Height:

under 6 in. (15 cm)

Spacing:

3-6 in. (7-15 cm)

6-9 in. (15-22 cm)

Hardiness:

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

All parts of plant are poisonous if ingested

Bloom Color:

Pale Yellow

Bright Yellow

Chartreuse (Yellow-Green)

Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Foliage:

Smooth-Textured

Veined

Other details:

May be a noxious weed or invasive

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Non-patented

Propagation Methods:

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Regional

This plant has been said to grow in the following regions:

San Mateo, California

Aurora, Colorado

De Leon, Texas

San Antonio, Texas

Leesburg, Virginia

Gardeners' Notes:

0
positives
0
neutrals
1
negative
RatingContent
Negative

On Jul 1, 2010, darylmitchell from Saskatoon, SK (Zone 3a) wrote:

This is a common weed in western Canada. Fortunately it is shallow-rooted and easily pulled up.