Rosy Lights Rhododendron (Azalea) vs Anise Hyssop - TreeTime.ca

Rosy Lights Rhododendron (Azalea) vs Anise Hyssop

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Rhododendron x Rosy Lights

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Anise Hyssop
Rosy Lights Rhododendron (Azalea)

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.

Rosy Lights Rhododendron is the next flowering, deciduous shrub you need in your garden. It is incredibly cold hardy and produces fragrant, bright pink blooms in late spring. Pruning is recommended after the flowers are finished to control the size and shape of this shrub.

Try Rosy Lights Rhododendron when planning your next hedge/screen, or plant it on its own as a striking accent plant. Part of the Northern Lights Series.

Anise Hyssop Quick Facts

Rosy Lights Rhododendron (Azalea) Quick Facts

Zone: 3b
Zone: 4a
Height: 0.9 m (3 ft)
Height: 1.5 m (5 ft)
Spread: 0.6 m (2.0 ft)
Spread: 1.2 m (4 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: fast
Growth rate: medium
Life span: short
Life span: medium
Growth form: upright, clump-forming
Spreading: seeds - high, rhizomes - medium
Suckering: low
Maintenance: medium
Maintenance: medium


Toxicity: All parts of a rhododendron bush, including the leaves, stems and blooms, are toxic to cats, dogs, and horses.
Foliage: aromatic when crushed
Fall colour: Maroon
Flowers: spikes of purple flowers
Flowers: large, pink
Bloom time: summer to fall
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, SK, MB, ON, NT
Other Names: blue giant hyssop, giant hyssop, lavender hyssop