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Yarrow

Achillea millefolium

Also called Milfoil and Achillea

Garden plant · Perennials

Rich soil and water make it flop. It wants poor ground and neglect, and the flatter the flowerheads sit the happier it is.

Care at a glance

Ease
Easy
Water
Every 10 daysWater the ground — water at the base, in the morning, not over the leaves.
Light
Full sun
Feed
Not needed
Humidity
Low
Hardiness
Very hardy RHS H7, to -25°C
Size
0.75 m tall · 0.3 m across
Lifecycle
Perennial
Origin
Europe, western Asia and North America

Is it safe for pets and people?

PetsToxic to pets

Affects dogs, cats, horses.

PeopleNot checked yet

Nobody has checked this one against a source for us yet, so treat it as unknown rather than safe.

Checked against ASPCA and RHS on 2026-08-03.

A guide, not veterinary or medical advice. If a pet or a person has eaten a plant and you are worried, call your vet or doctor now — don’t wait for signs to appear. Spotted a mistake? Tell us.

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