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Lesser Hop Trefoil

Trifolium dubium

Also listed as Trifolium minus, Amarenus flavus

Also known as Little Hop Clover, Lesser Trefoil, Suckling Clover

groundcover☀️ full sun💧💧 moderate water❄ Hardy: Zone 8a – Zone 9b

Climate Match for your location

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A low-growing annual or winter annual clover with small yellow flower heads, commonly found in meadows and grasslands. It is a nitrogen-fixing legume that tolerates poor soils and is often used as a cover crop or forage plant.

Why grow it

Lesser hop trefoil is a compact nitrogen-fixing legume better suited to sparse, degraded soils than many clover species, making it useful for quick soil improvement in marginal areas. Its small stature and modest nutrient demands mean it requires less management than larger clovers while still delivering reasonable forage or green manure value. It establishes readily from seed and persists through winter in temperate climates, offering flexible timing for integration into rotation systems.

Watch out for

This species can self-seed prolifically in disturbed or bare ground, so timing of incorporation or mowing is important if you want to prevent unintended spread into adjoining areas. Performance varies considerably with rainfall and soil moisture, so it may peter out quickly in dry seasons or heavy clay without supplemental water or soil amendment.

Overview

Form
Spreading
Growth Rate
moderate
Size
0.25–0.75′ tall × 0.5–1.5′ wide
Dormancy
deciduous
Family
Fabaceae
Biomass and mulchFodderPollinators & beneficial insects

Native Range

Europe and Western Asia

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