Giant Hyssop

Agastache foeniculum

Light Conditions: Part Shade to Sun
Soil Conditions: Moist to Well Drained
Exposure Conditions: Moderate to Exposed
Size: 24-36" T & 18-30" W
Bloom Period: July - August
Bloom Colour: Blue
Growth Habit: Moderate to Fast
Spreads By: Seeds

Good For Small Spaces
Good For Large Spaces
Long Bloom Time


Attractive Seed Heads
Fall Color
Deer Resistant
Edible/Medicinal Properties

Seed Price: $4.00
Seed Quantity:
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Plug Price: $4.50
Plug Quantity:
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Agastache foeniculum (Giant Hyssop) Agastache foeniculum (Giant Hyssop) Agastache foeniculum (Giant Hyssop)

Seeds Per Package: 35

Description: Giant Hyssop is a large leafy plant with pleasant smelling leaves that can be used to make a tasty tea. Showy blue flower spikes are highly nectar producing attracting bees and butterflies. This wildflower is pretty easy going and works well in at the back of a garden bed or a larger naturalized space where its size and upright form make it easy to appreciate from a distance.

Found in Nature: Moist open meadows to lightly shaded sites on the edge of aspen woodlands and thickets.

Distribution: Plains & Foothills

Notes: Available as larger potted stock - pick up only.

Important Information: The "Bloom Period" is an indicator of the time period within which the wildflowers will bloom and does not describe the time period that a single plant will bloom. The "Sizes" listed are intended to be a general guideline to consult during plant selection. Plant growth and bloom times will vary depending on geographical location & individual site conditions. Please contact us with any questions you may have.