Lady Bird Johnson Wildflower Center - The University of Texas at Austin information

 Native Plant Database

Agastache scrophulariifolia

Purple giant hyssop, Purple giant-hyssop

Lamiaceae (Mint Family)

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

This plant is now extirpated from Ontario (Newmaster et al., 1998)

Image Gallery:

5 photo(s) available

Plant Characteristics

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

Bloom Information

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


USA: CT , DE , GA , IL , IN , IA , KS , KY , MD , MA , MI , MN , MO , NE , NH , NJ , NY , NC , OH , PA , SC , SD , TN , VT , VA , WV , WI , DC
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
Conditions Comments: Not Available


Conspicuous Flowers: yes
Fragrant Foliage: yes
Attracts: Butterflies

Last Update: 2012-12-06