Prairie Crocus vs Anise Hyssop - TreeTime.ca

Prairie Crocus vs Anise Hyssop

Pulsatilla nuttalliana (Anemone patens)

Agastache foeniculum

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Prairie Crocus
Anise Hyssop

Prairie Crocus is a native perennial wildflower that is often considered one of the first signs of spring. The flowers can range from purple, pale blue, to white and often appear before the snow has fully melted. It can bloom a month earlier than other spring flowers, providing an early source of pollen for a variety of pollinators.

The plant is covered in woolly white hairs, including the finely divided leaves, giving them a silvery appearance. Prairie Crocus leaves do not fully emerge until after it has bloomed. The spent blooms transform into fluffy, feathery seed heads. During the hot summer months, the Prairie Crocus goes dormant and will repeat its life cycle the following spring.

The Prairie Crocus is Manitoba’s provincial flower.

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.

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.

Prairie Crocus Quick Facts

Anise Hyssop Quick Facts

Zone: 1b
Zone: 3b
Height: 0.2 m (0.5 ft)
Height: 0.9 m (3 ft)
Spread: 0.2 m (0.5 ft)
Spread: 0.6 m (2.0 ft)
Light: full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: low growing, clump-forming
Growth form: upright, clump-forming
Spreading: seeds - medium, rhizomes - low
Spreading: seeds - high, rhizomes - medium
Maintenance: medium

Toxicity: all parts toxic if eaten, sap can irritate skin

Foliage: fuzzy, finely divided leaves
Foliage: aromatic when crushed
Flowers: pale purple, cup-shaped
Flowers: spikes of purple flowers
Bloom time: early spring
Bloom time: summer to fall
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Other Names: american pasqueflower, crocus anemone, pasqueflower, prairie pasqueflower, prairie smoke
Other Names: blue giant hyssop, giant hyssop, lavender hyssop