Lesser Yellow Trefoil, Shamrock, Lesser Trefoil, Least Hop Clover, Suckling Clover
Trifolium dubium

Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Trifolium (try-FOH-lee-um) (Info)
Species: dubium (DOO-bee-um) (Info)

Category:

Annuals

Groundcovers

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

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

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us

Height:

under 6 in. (15 cm)

Spacing:

12-15 in. (30-38 cm)

Hardiness:

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)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

N/A

Bloom Color:

Pale Yellow

Bloom Time:

Mid Spring

Late Spring/Early Summer

Foliage:

Herbaceous

Smooth-Textured

Other details:

Unknown - Tell us

Soil pH requirements:

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

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

From seed; sow indoors before last frost

Seed Collecting:

Collect seedhead/pod when flowers fade; allow to dry

Allow seedheads to dry on plants; remove and collect seeds

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Nov 17, 2006, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

Lesser Yellow Trefoil, Shamrock, Lesser Trefoil, Least Hop clover, Trifolium dubium, is Naturalized in Texas and other States and is considered an invasive plant in Texas.