Buttonbush vs Anise Hyssop - TreeTime.ca

Buttonbush vs Anise Hyssop

Cephalanthus occidentalis

Agastache foeniculum

CUSTOM GROW

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Buttonbush
Anise Hyssop

Buttonbush is a moisture loving shrub that provides year round interest.

It has round, fragrant flowers resembling small buttons or pincushions. The flowers transform into small reddish-brown fruit that persists into winter while the leaves take on shades of red in fall.

Providing essential food to bees, butterflies, and other insects, this shrub is versatile. Try it in your next shrub border.

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.

Buttonbush Quick Facts

Anise Hyssop Quick Facts

Zone: 4a
Zone: 3b
Height: 2.4 m (8 ft)
Height: 0.9 m (3 ft)
Spread: 1.5 m (5 ft)
Spread: 0.6 m (2.0 ft)
Light: any
Light: partial shade, full sun
Moisture: normal, wet
Moisture: dry, normal
Growth rate: medium
Growth rate: fast
Life span: long
Life span: short
Growth form: upright, clump-forming
Spreading: seeds - high, rhizomes - medium
Suckering: low
Maintenance: medium
Maintenance: medium


Foliage: aromatic when crushed
Flowers: large, white, spherical
Flowers: spikes of purple flowers
Bloom time: summer to fall
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Other Names: blue giant hyssop, giant hyssop, lavender hyssop