Smooth Sumac vs Yarrow - TreeTime.ca

Smooth Sumac vs Yarrow

Rhus glabra

Achillea borealis (Previously Achillea millefolium)

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Smooth Sumac
Yarrow

Smooth Sumac is an excellent shrub for both its ornamental appeal and tolerance of difficult planting sites. You'll love the attractive pyramidal spikes of hairy, red berries that emerge on female plants and the fern-like foliage that covers both male and female varieties.

Ensure you give Smooth Sumac enough space to spread out due to its high suckering nature. While not ideal for small, urban yards, this shrub will make a stunning border along a woodland edge or roadside.

Note:These plants typically reach maturity and make their sex easily known (females producing fruit) in their 3rd or 4th year of growth. Our seedlings are too young to identify their sex.

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.

Smooth Sumac Quick Facts

Yarrow Quick Facts

Zone: 3a
Zone: 3a
Height: 2.4 m (8 ft)
Height: 0.3 m (1.0 ft)
Spread: 2.1 m (7 ft)
Spread: 0.9 m (3 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: fast
Growth rate: fast
Life span: medium
Life span: short
Suckering: high
Suckering: none
Maintenance: medium


Toxicity: toxic to dogs, cats, and horses
Foliage: long, thin
Fall colour: scarlet red
Flowers: clusters of white flowers
Bloom time: late spring to early summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


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