Yarrow vs Showy Milkweed - TreeTime.ca

Yarrow vs Showy Milkweed

Achillea borealis (Previously Achillea millefolium)

Asclepias speciosa

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Yarrow
Showy Milkweed

Yarrow is a herbaceous, native wildflower that is found across Canada. It features large, flat clusters of tiny white flowers. The blooms attract a variety of pollinators, making it an ideal choice for pollinator gardens. While partial shade is tolerated, the best flowering occurs in full sun. Yarrow is resistant to deer and rabbits, making it both a beautiful and practical addition to your landscape.

The entire plant is edible, but leaves and flowers are most commonly consumed. They have a strong licorice scent and a mild sweet flavor that is similar to tarragon. Yarrow leaves can also be used as a natural insect repellent.

It is important to plant Yarrow in the right place, it can spread quickly via both rhizomes and self-seeding. Deadheading the spent flowers will extend the bloom season and can help limit self-seeding.

Showy Milkweed is a native perennial wildflower known for its fragrant clusters of pink to purple, star-shaped flowers. It is an essential plant for Monarch butterflies, acting as a critical host plant for caterpillars and a nectar source for adults. Blooming from early to mid-summer, these flowers also supply nectar to many other pollinators, including bees, butterflies, moths, and hummingbirds.

Ideal for butterfly conservation, pollinator gardens, and naturalization projects, Showy Milkweed thrives in a wide range of soils, including dry and rocky ground. While it spreads via underground rhizomes to form colonies, it is much less aggressive than Common Milkweed (Asclepias syriaca).

Note: All parts of the plant contain toxic cardiac glycosides, especially the milky sap. Do not ingest any part of the plant and prevent sap from contacting skin or eyes. Toxic to humans, pets, and livestock.

Yarrow Quick Facts

Showy Milkweed Quick Facts

Zone: 3a
Zone: 3a
Height: 0.3 m (1.0 ft)
Height: 0.9 m (3 ft)
Spread: 0.9 m (3 ft)
Spread: 0.5 m (1.5 ft)
Light: partial shade, full sun
Light: full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, clump forming
Spreading: rhizomes - high, seeds - high
Suckering: none
Maintenance: medium

Toxicity: toxic to dogs, cats, and horses

Toxicity: toxic to pets, livestock, and humans if ingested, can cause skin and eye irritation.
Flowers: clusters of white flowers
Flowers: purplish-pink clusters
Bloom time: late spring to early summer
Bloom time: early to mid summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Native to: AB, BC, MB, YT
Other Names: common yarrow, devils nettle, milfoil, western yarrow, white yarrow