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Agastache scrophulariifolia (Purple giant hyssop)
Wasowski, Sally and Andy

Agastache scrophulariifolia

Agastache scrophulariifolia (Willd.) Kuntze

Purple Giant Hyssop, Purple Giant-hyssop

Lamiaceae (Mint Family)

Synonym(s): Agastache scrophulariifolia var. mollis


USDA Native Status: L48 (N), CAN (N)

Flowers purplish-red in a crowded, terminal spike with purple bracts. Oval, opposite leaves are toothed and whitish beneath. Erect, purplish stems are 2-5 ft. tall.


From the Image Gallery

5 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Class: 3-6 ft.

Bloom Information

Bloom Color: Red , Purple
Bloom Time: Jul , Aug , Sep


USA: CT , DC , DE , GA , IA , IL , IN , KS , KY , MA , MD , MI , MN , MO , NC , NE , NH , NJ , NY , OH , PA , SC , SD , TN , VA , VT , WI , WV
Canada: MB , NB , ON , QC , SK
Native Distribution: VT & MA to GA, w. to w. Ont., e. SD & e. KS
Native Habitat: Rich woods & thickets

Growing Conditions

Light Requirement: Sun , Shade
Soil Moisture: Moist
Soil Description: Rich, moist soils


Conspicuous Flowers: yes
Fragrant Foliage: yes
Attracts: Butterflies

Value to Beneficial Insects

Special Value to Native Bees
Special Value to Bumble Bees
Special Value to Honey Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.


Description: Not Available
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Natural Biodiversity - Johnstown, PA

Additional resources

USDA: Find Agastache scrophulariifolia in USDA Plants
FNA: Find Agastache scrophulariifolia in the Flora of North America (if available)
Google: Search Google for Agastache scrophulariifolia


Record Modified: 2021-09-13
Research By: TWC Staff

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