Photo by Charlie McDonald, Public domain

Threadleaf Giant Hyssop

Agastache rupestris

ZONE HARDINESS

SPACE REQUIREMENTS

HEIGHT REQUIREMENTS

SUN REQUIREMENTS

The flowers are orange with purple calyxes, giving it the common name of sunset hyssop, leaves are fragrant, smelling of anise. Drought tolerant, heat tolerant. The use of sand or gravel for mulch can help for better drainage. A short lived perennial, this plant is a favorite of hummingbirds.

This plant is listed as beneficial to pollinators in the book, “100 Treasure Valley Pollinator Plants”. https://gardentronic.com/blog/one-hundred-treasure-valley-pollinator-plants/

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PLANT DETAILS

NAME

Threadleaf Giant Hyssop, Licorice Mint, Sunset Hyssop

TYPE

Perennial

HEIGHT

18" - 30"

SPACING

12" - 18"

ZONE HARDINESS

5-8

ENVIRONMENTAL REQUIREMENTS

Well-drained soils are necessary for this plant to survive the winter.

SUN REQUIREMENTS

Part sun to full sun

ΒLOOM TIME

Mid Summer to Late Fall

ABOUT US

We are GardenTronic!

She is an avid gardener and composter/photographer and he is a web developer/drone pilot -together we produce videos about gardening. We love gardening in the intermountain west, but it can be challenging. We want to inspire gardeners and provide a platform for local gardeners to share their garden successes. GardenTronic provides access to local businesses so your garden dreams can come true.

And, in case you were wondering -- Tronic means "Awesome". It comes from the 1980's movie "Tron", so GardenTronic literally means "Awesome Garden".