Medicago Species, Black Medick, Hop Clover, Yellow Trefoil

Medicagolupulina

Family
Fabaceae (fab-AY-see-ee)
Genus
Medicago (med-DIK-ah-go)
Species
lupulina (lup-oo-LEE-nuh)
Synonym
Medicago appenina
Medicago cupaniana
Medicago wildenowii
Sun Exposure
Sun to Partial Shade
Light Shade
Foliage
Herbaceous
Height
under 6 in. (15 cm)
Spacing
6-9 in. (15-22 cm)
9-12 in. (22-30 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
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)
Danger
Parts of plant are poisonous if ingested
Bloom Color
Bright Yellow
Bloom Time
Late Spring/Early Summer
Other Details
Category
Herbs
Perennials
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
Regional

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

Jerome, Arizona

Phoenix, Arizona

San Diego, California

Brookeville, Maryland

Valley Lee, Maryland

Powers, Michigan

Columbus, Ohio

Guysville, Ohio

Pocola, Oklahoma

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Gardener's Notes:

0
positive
1
neutral
2
negatives
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M
Powers, MI | March 2014 | negative

Can't even begin to estimate how much "gardening" time I have spent pulling out this terribly invasive plant. It will take over your garden.

C
Brookeville, MD (Zone 7a) | June 2007 | neutral

This plant grows throughout the parts of my lawn that have been disturbed by recent construction and in areas up against the house.
...Read More

R
Walkerton, VA (Zone 7a) | February 2006 | negative

Black Medic(k) is an invasive plant in this area. Once established, it is very difficult to get rid of. It is resistant to many herbicide...Read More

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