Marsh Cinquefoil vs Anise Hyssop - TreeTime.ca

Marsh Cinquefoil vs Anise Hyssop

Comarum palustre

Agastache foeniculum

NOT AVAILABLE THIS SEASON - MIGHT RETURN

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Marsh Cinquefoil
Anise Hyssop

Marsh Cinquefoil is a native perennial wetland plant with striking reddish-purple, star-shaped flowers. They bloom in early to mid-summer, providing nectar for bees, flies, and other pollinators. Beyond its summer blooms, the foliage turns red in autumn, adding seasonal interest to wetland landscapes.

Common in wetlands, pond margins, and wet meadows, Marsh Cinquefoil spreads by rhizomes to form colonies or patches that contribute to shoreline stabilization. It thrives in nutrient-poor, saturated soils where many other plants struggle, making it valuable in challenging wetland conditions. With its ecological function and ornamental appeal, it is well-suited for wetland plantings, ecological restoration, and naturalized projects.

Anise Hyssop is a native perennial wildflower known for its fragrant spikes of small purple flowers. This plant is an excellent source of nectar and is highly attractive to a variety of bees and other pollinators. Deadheading spent flowers will encourage more blooms throughout the season.

Its aromatic leaves release an anise-like (licorice) scent when crushed. Both the leaves and seeds are edible and have been used in teas and as flavouring. Leaves can be harvested at any time, though the oil content is highest just past full bloom. Deer tend to avoid Anise Hyssop because of its strong-smelling leaves. This makes it a useful plant for positioning as a protective border around more vulnerable species.

Anise Hyssop spreads by seeds and rhizomes, but is less aggressive than other members of the mint family and is easy to remove if needed. Historically, it was planted in large numbers as a honey plant to support apiaries. Birds also feed on its seeds, adding to its ecological value.

As a perennial, it dies back to the crown each winter, it will regrow from the base in the spring. Avoid disturbing the crown during late winter to ensure healthy growth the following season.

Marsh Cinquefoil Quick Facts

Anise Hyssop Quick Facts

Zone: 1b
Zone: 3b
Height: 0.5 m (1.5 ft)
Height: 0.9 m (3 ft)
Spread: 0.3 m (1.0 ft)
Spread: 0.6 m (2.0 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: wet
Moisture: dry, normal
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: ascending to upright
Growth form: upright, clump-forming
Spreading: seeds - medium, rhizomes - medium
Spreading: seeds - high, rhizomes - medium
Maintenance: medium


Foliage: aromatic when crushed
Flowers: dark red/maroon, star-shaped
Flowers: spikes of purple flowers
Bloom time: summer
Bloom time: summer to fall
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, SK, MB, ON, NT
Other Names: marsh five fingers, purple cinquefoil, purple marshlocks
Other Names: blue giant hyssop, giant hyssop, lavender hyssop