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Common Cow-wheat

Melampyrum pratense

herbaceousβ›… part shadeπŸ’§πŸ’§ moderate water❄ Hardy: Zone 4a – Zone 8b

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Common cow-wheat is a semi-parasitic wildflower with small yellow and purple flowers that bloom in summer. It typically grows in woodland margins and grasslands, preferring partial shade and moderate moisture.

Why grow it

Common cow-wheat fills a niche role in semi-shaded woodland gardens where typical wildflowers may struggle, particularly in areas with established tree cover and moderate soil moisture. Its semi-parasitic nature means it can establish in less fertile soils without heavy amendment, making it useful for low-input landscape restoration. Compared to purely parasitic relatives, it retains more self-sufficiency, though it will perform better when nearby host plants (grasses and herbaceous species) are present.

Watch out for

This plant may self-seed readily once established, so deadheading spent flowers helps prevent unwanted spread in formally managed gardens. It typically requires a period of winter dormancy to thrive, so performance may be inconsistent in regions with mild winters or when grown in overly warm microclimates.

Overview

Form
Upright
Growth Rate
moderate
Size
0.5–1.5β€² tall Γ— 0.5–1β€² wide
Dormancy
deciduous
Family
Orobanchaceae

Native Range

European native

Seasonality

Bloom Season

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

Season of Interest

Summer

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Companion Planting

Plants well with