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Hop Trefoil

Trifolium campestre

Also listed as Chrysaspis campestris, Amarenus campestris

Also known as Hop Clover, Low Hop Clover, Field Clover

groundcover☀️ full sun💧 low water

Climate Match for your location

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A low-growing annual legume with small clover-like leaves and tiny yellow flowers arranged in dense heads. Commonly found in dry grasslands and disturbed areas, it tolerates poor soil and drought.

Why grow it

Hop trefoil establishes quickly in poor or compacted soils where larger clovers struggle, making it useful for rapid ground cover or erosion control on marginal land. As a nitrogen-fixing legume, it contributes to soil improvement faster than non-leguminous pioneer species, though it typically persists for only one season. It requires less moisture and fertility than common clover species, suiting drier microclimates or low-input settings.

Watch out for

Because this annual reseeds readily, monitor it in perennial plantings if you wish to prevent self-sowing in subsequent years. In areas with regular summer irrigation, it may persist longer than expected and outcompete slower-establishing neighbors during establishment phases.

Overview

Form
Spreading
Growth Rate
moderate
Size
0.25–1′ tall × 0.5–1.5′ wide
Dormancy
annual
Family
Fabaceae
Biomass and mulchErosion controlPollinators & beneficial insects

Native Range

Mediterranean and Europe

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

SpringSummer

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Companion Planting

Plants well with