Green Alder vs Common Cattail - TreeTime.ca

Green Alder vs Common Cattail

Typha latifolia

Alnus alnobetula subsp. crispa

CUSTOM GROW

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Common Cattail
Green Alder

Cattail is found all across North America, growing next to water. Like other waterside plants, Cattail provides erosion control and forage for animals.

It is suitable for land reclamation. Cattail is able to tolerate cold weather and occasional flooding.

Green Alder is a native, cold-hardy shrub found in boreal forests, along slopes, and in open upland habitats. It fixes nitrogen in the soil, improving fertility and helping other plants grow, while its roots help stabilize slopes and disturbed ground. Fast to establish on poor soils, it is widely used in reclamation, restoration, and erosion control projects.

With its smooth grey bark and shiny green leaves, Green Alder often forms dense thickets that provide cover for birds and small mammals. Its seeds, buds, and catkins also supply food for wildlife. Green Alder is well suited for naturalization and ecological restoration.

Note: We use Green Alder for Alnus alnobetula subsp. crispa. This species is also known by many other common names, including Mountain Alder, Sitka Alder, and others. Please confirm the scientific name to ensure you are ordering the correct plant.

Common Cattail Quick Facts

Green Alder Quick Facts

Zone: 1a
Zone: 1a
Height: 2.4 m (8 ft)
Height: 7 m (23 ft)
Spread: 1.5 m (5 ft)
Spread: 3 m (10 ft)
Light: partial shade, full sun
Light: any
Moisture: wet
Moisture: any
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Suckering: medium
Suckering: high


Foliage: thick, flat
Flowers: yellow and green
Hybrid: no
Hybrid: no
Catkins: no
Catkins: yes


In row spacing: 0.9 m (3 ft)
Between row spacing: 5 m (16 ft)
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Native to: AB, SK, MB, ON, NS, NB, NL, YT
Other Names: baco, bulrush, cat o nine tails, cossack asparagus, flag, reed mace, rush
Other Names: american green alder