A genus of perennials that are part of the larger Lamiaceae family.
They prefer full sun on moist soil. Most species prefer 2 inches of stone or coarse sand mulch and a deep weekly watering during summer. Fertilize during autumn to encourage root growth and do not remove old stems until early spring as the new foliage emerges ( leaving the old stems tends to increase winter hardiness ). The worst enemy of this plant is soil that is poorly drained and wet during winter, especially clay - these conditions can be fatal. Where these conditions occur, it is better to use them in raised beds or planters.
May be prone to mildew and leaf spot though disease problems are generally rare and not serious, affecting mostly drought weakened plants. All species are generally deer and rabbit resistant.
Propagation is from seed, root division, stem tip cuttings taken during late summer or division during early spring. They often self seed though seedlings are usually removed since they are not as colorful as most of the named cultivars.
* photo taken on Oct 1 2013 in Howard Co., MD
* videos found on internet
Agastache 'Arizona Sandstone'
A compact perennial, reaching up to 12 x 10 inches in size.
The foliage is gray-green.
The intense orange flowers appear from early summer into early autumn.
Hardy zones 6 to 9 in full sun on very well drained soil.
* photo taken on July 26 2021 in Elkridge, MD
Agastache 'Arizona Sunset'
A compact perennial, reaching up to 12 x 10 inches in size.
The foliage is gray-green.
The lavender and orange flowers appear from early summer into early autumn.
Hardy zones 6 to 9 in full sun on very well drained soil.
* photo taken on Aug 26 2020 in Elkridge, MD
Agastache 'Ava'
A long lived perennial, reaching up to 5 x 2 feet, that is the hybrid between Agastache barberi & A. cana. Plants take a few years to establish before reaching full size.
The aromatic foliage may be used to flavor tea.
The deep rosy-pink flowers are borne on huge spikes, up to 13 inches in length, from mid summer until autumn frosts.
Hardy zones 5 to 9 in full sun to partial shade. Excellent drainage during winter is required.
Agastache aurantiaca ( Orange Hummingbird Mint )
A perennial that is native to Chihuahua and Durango states in Mexico.
'Coronado Red'
A very attractive hybrid, reaching up to 2.5 x 1.5 feet with a very upright habit.
The intensely, mint-scented foliage is gray-green.
The deep orange turning to scarlet-red flowers are borne on showy spikes up to 15 inches in length, all summer long.
Hardy zones 7 to 9 ( tolerates - 5 F ) in full sun on very well drained soil. Great for containers.
'Lilac Sprite'
Dense and compact in habit, reaching up to 1.5 x 1.5 feet in size.
The foliage is blue-green.
The bicolored lavender and apricot flowers appear late spring into early autumn.
Hardy zones 7 to 9
* photo taken on Sep 16 2013 in Columbia, MD
'Shades of Orange'
Reaches up to 3 feet in height. Very showy flowers ranging from pale pinkish-orange to deep orange are borne on spikes lasting mid summer into early autumn.
The flowers attract hummingbirds.
Hardy zones 6 to 10 in full sun to partial shade on humus-rich, light, well drained soil. It thrives in the west and the east. Drought tolerant but prefers a weekly deep soaking during summer.
'Tango'
Compact and upright in habit, reaching up to 1.5 x 2 feet.
The intense orange-red flowers appear for up to 4 months from early summer to mid-autumn.
Hardy zones 5 to 10, however excessively wet winters can often be more of a problem than cold.
* photo taken on June 22 2014 in Howard Co., MD
* photos taken @ Smithsonian Inst, Wash., DC on Aug 25 2014
* photos taken on Sep 26 2020 in Howard Co., MD
* photo taken on Oct 6 2021 in Howard County, MD
* photo taken on Oct 30 2023 in Howard Co., MD
Agastache barberi ( Mountain Giant Hyssop )
Also called A. pallida. A moderate growing, bushy perennial, reaching up to 5 feet, that is native to mountains of the southwestern U.S.
The foliage is deep green.
The bright pink flowers appear early summer into early autumn.
Hardy zones 5 to 9 in full sun on sandy, well drained soil. It does not enjoy winter wetness.
Agastache 'Blue Blazes'
A vigorous hybrid between Agastache 'Desert Sunrise' and A. foeniculatum, reaching up to 5 x 3 feet.
The intense lavender-purple flowers are borne continously on spikes from mid summer through autumn. The flowers attract butterflies and hummingbirds.
Hardy zones 5 to 9 in full sun on very well drained soil. Pinch back during late spring to make plants more compact.
Agastache 'Blue Boa'
A very vigorous, upright perennial, reaching up to 2.7 x 1.5 feet at end of first summer, eventually to 4.5 x 4 feet in size.
The coarsely-toothed, ovate leaves are up to 2.3 x 1.7 inches in size.
The very showy, deep violet-blue flowers, up to 0.8 inches in size, are borne on inflorescences up to 6.5 x 1.6 inches in size, all summer long.
They are extremely attractive to butterflies and hummingbirds.
Hardy zones 6 to 9.
* photo taken on Sep 23 2013 in Burtonsville, MD
* photos taken on Oct 24 2014 in Columbia, MD
* photos taken on Aug 13 2017 in Columbia, MD
* patent photo
Agastache cana ( Texas Hummingbird Mint )
A moderate growing, woody based, upright perennial, reaching a maximum size of 3 x 3 feet, that is native to New Mexico and western Texas, where it is endangered.
The pointed oval to triangular leaves, up to 1.5 inches long, are blue-green and slightly downy.
The abundant, reddish-pink, tubular flowers, up to 1 inch long, are borne on spikes up to 12 inches in length, from early summer into early autumn.
The flowers are loved by hummingbirds.
Hardy zones 5 to 8 in full sun on fertile, very well drained soil. Very drought tolerant. Resistant to deer and rabbits. Deadhead old blooms to encourage repeat blooming. Cut back during late fall.
'Heather Queen'
Bright pink flowers.
'Rosita'
Very dense and compact, reaching up to 2 x 2.5 feet.
The fragrant, deep rosy-pink flowers are borne on very abundant, very dense spikes mid summer until autumn frosts.
Hardy zones 5 to 9
Agastache 'Desert Sunrise'
A vigorous, sturdy perennial, reaching up to 4.5 x 2 feet, that is the hybrid between Agastache cana & A. rupestris.
The foliage is silvery-gray.
The very fragrant,reddish-pink flowers are borne on large spikes mid summer through autumn.
The flowers are very attractive to hummingbirds.
Hardy zones 5 to 9 in full sun on very well drained soil. Plant during spring only north of zone 8 to allow plants to harden off before first winter.
Agastache foeniculum ( Blue Giant Hyssop )
An upright perennial, reaching a maximum size of 5 x 2.5 feet, that is native to prairies of North America ( from British Columbia to Northwest Territories to central Saskatchewan to The Pas, Manitoba to Thunder Bay, Ontario to Michigan's Upper Peninsula to Wiarton, Ontario; south to Washington to central Colorado to central Iowa to far northern Illinois ). It is endangered in British Columbia, Northwest Territories, Colorado, Nebraska and Iowa.
The very aromatic, coarse, toothed, pointed oval to triangular leaves are up to 6 inches in length. The foliage is downy white beneath.
The leaves are good for making a great soothing tea.
The pale violet-blue flowers are borne on dense cylindrical spikes from mid summer thru early autumn.
Attracts butterflies, hummingbirds and honey bees. It is generally not eaten by deer but birds do like to eat the seeds.
Hardy zones 2 to 9 in full sun to partial shade on just about any well drained soil.
* photo of unknown internet source
* photos taken on Oct 22 2013 in Towson, MD
* photo taken on June 7 2019 @ Univ. of Maryland, College Park
* photo taken on Aug 4 2021 @ U.S. National Arboretum, Washington, DC
* video found on internet
'Alba'
Reaches up to 3 feet with bright green foliage.
The small white flowers are borne during mid summer.
Attracts butterflies.
Hardy zones 7 to 9 in full sun.
'Apricot Sunrise'
Reaches up to 4 x 3 feet, with aromatic gray-green foliage and rich deep orange flowers borne early summer to early autumn.
Grows very fast during the first year, making it great for bedding and patio planters. It looks great planted in front of the deep purple Cotinus cultivars.
Hardy zones 6 to 9, requiring excellent winter drainage.
'Big Bazooka'
Upright in habit, reaching a maximum of 6 x 3 feet, with huge, fragrant, intense pink flower clusters.
Hardy zones 6 +.
'Black Adder'
Vigorous and bushy, reaching up to 4 x 4 feet.
The violet-blue ( dark purple in bud ) flower clusters, up to 7 inches in length, are borne mid-summer to mid-autumn as long as the plant is deadheaded after the first flush.
Hardy zones 5 to 8 in full sun.
* photo taken on July 15 2013 in Harford Co., MD
'Blue Fortune'
Compact and upright in habit, reaching a maximum size of 6 x 4.3 ( rarely over 3 ) feet, with large, aromatic, green ( silver beneath ) foliage and lightly fragrant, soft violet-blue flowers borne on spikes up to 5 inches in length, over a long season from mid summer to early autumn. The flowers attract hummingbirds and butterflies.
Hardy zones 5 to 8, marginal in zone 4. Heat and drought tolerant.
Thrives over a wide range including the hot humid east.
* photos taken on July 20 2011 in Columbia, MD
* photos taken on Aug 1 in Hyde Park, NY
* photos taken on Aug 20 2011 @ Brookside Gardens, Wheaton, MD
* photos taken on Aug 29 2013 in Clarksville, MD
* photos taken on Aug 5 2017 @ Brookside Gardens, Wheaton, MD
* photo taken on June 12 2020 in Elkridge, MD
'Firebird'
Erect in habit, reaching a maximum size of 6 x 3 ( rarely over 4 ) feet, with deep rose-red flowers borne all summer long.
'Fragrant Delight'
Reaches a maximum height of 4 feet, with purplish-pink flowers.
'Golden Jubilee'
Vigorous in habit, reaching up to 4 x 4 ( rarely over 3 ) feet, with golden-yellow foliage.
The fragrant, blue flowers are borne on dense bottlebrush-like spikes, up to 3 inches in length, from mid-summer until autumn frost.
Hardy zones 5 to 8 on very well drained soil.
* photo taken on June 23 2013 @ U.S. National Arboretum, DC
* photo taken on Apr 23 2015 in Howard Co., MD
* photo taken on May 26 2018 in Columbia, MD
* photo taken on June 15 2018 in Columbia, MD
* photo taken on July 25 2018 in Columbia, MD
* photos taken on Aug 3 2018 in Sandy Spring, MD
* photo taken on May 1 2019 in Columbia, MD
* photo taken on May 29 2019 in Columbia, MD
* photos taken on June 28 2019 in Columbia, MD
* photo taken on May 28 2020 in Columbia, MD
* photo taken on June 8 2020 in Columbia, MD
* photos taken on July 4 2020 in Columbia, MD
* photos taken on July 14 2020 in Columbia, MD
* photos taken on Aug 12 2020 in Columbia, MD
* photos taken on Aug 20 2020 in Columbia, MD
* photo taken on June 29 2021 in Columbia, MD
* photos taken on July 9 2021 in Columbia, MD
* photo taken on July 11 2022 in Columbia, MD
* photos taken on July 3 2022 in Columbia, MD
* photos taken on June 2 2023 in Columbia, MD
* photos taken on July 4 2023 in Columbia, MD
'Pink Panther'
Reaches a maximum size of 6 x 3 feet, with deep purplish-green foliage and intense rose-pink flowers borne on long spikes from late spring to mid-autumn.
Grows very fast during the first year, making it great for bedding and patio planters.
Hardy zones 6 to 9, requiring excellent winter drainage.
Agastache 'Heatwave'
A perennial, reaching up to 3 x 2.2 feet in 2 years, eventually to 5 x 2.3 ( rarely over 3 ) feet. The ovate leaves average 1.3 x 1 inches in size.
The very abundant, lavender-pink flowers are borne on inflorescences averaging 5 x 2 inches in size, from early summer until autumn frost. The flowers are extremely attractive to butterflies and hummingbirds.
Hardy zones 6 to 8 ( 5 on protected sites ) in full sun on very well drained soil. Very heat and drought as well as humidity tolerant.
* photos taken on Sep 29 2013 in Ellicott City, MD
Agastache 'Kudos Ambrosia'
A fast growing but compact perennial, reaching up to 1.2 x 1.5 feet in 1 year, eventually to 1.8 x 1.5 feet. It is great for containers.
The coarsely-toothed, ovate leaves are up to 2 x 1.5 inches in size.
The intense bright orangish-pink flowers, up to 1.3 inches long, are borne in inflorescences up to 5.5 x 2.3 inches in size, from early summer into mid-autumn. The flowers are very attractive to butterflies and hummingbirds.
Hardy zones 5 to 9, preferring moist, well drained soil in full sun.
* photo taken on Aug 29 2013 in Clarksville, MD
* patent photo
Agastache 'Kudos Coral'
A fast growing but compact perennial, reaching up to 1.2 x 1.5 feet in 1 year, eventually to 2 x 1.5 feet. It is great for containers.
The aromatic foliage is gray-green. The coarsely-toothed, ovate leaves are up to 2 x 1.5 inches in size.
The intense coral-pink flowers, up to 1.3 inches long, are borne, are borne in inflorescences, up to 4 x 2.3 inches in size, from early summer into early autumn. The flowers are very attractive to butterflies and hummingbirds.
Hardy zones 6 to 9 in full sun, preferring moist, well drained soil. It is very disease resistant and also drought tolerant.
* patent photos
Agastache 'Kudos Mandarin'
A fast growing but compact perennial, reaching up to 1.2 x 1.5 feet in 1 year, eventually to 2 x 1.5 feet. It is great for containers.
The aromatic foliage is gray-green. The coarsely-toothed, ovate leaves are up to 2 x 1.5 inches in size.
The intense orange flowers, up to 1 inch long, are borne in inflorescences, up to 4.3 x 2.8 inches in size, from early summer into early autumn.
The flowers are very attractive to butterflies and hummingbirds.
Hardy zones 6 to 9 in full sun, preferring moist, well drained soil. It is very disease resistant and also drought tolerant.
* photo taken on May 27 2023 in Burtonsville, MD
* patent photos
Agastache 'Kudos Red'
A fast growing but compact perennial, reaching up to 1.8 x 2.2 feet in 1 year, eventually to 2 x 2.2 feet. It is great for containers.
The aromatic foliage is gray-green. The coarsely-toothed, ovate leaves are up to 2.2 x 1.3 inches in size.
The intense scarlet-red flowers, up to 1 inch long, are borne on inflorescences, up to 7 x 2.2 inches in size, from early summer into early autumn.
The flowers are very attractive to butterflies and hummingbirds.
Hardy zones 6 to 9 in full sun, preferring moist, well drained soil. It is very disease resistant and also drought tolerant.
* photo taken on Oct 30 2023 in Howard Co., MD
Agastache ‘Kudos Silver Blue’
A fast growing but compact perennial, reaching up to 1.7 x 2.3 feet in 1 year, eventually to 2 x 2.3 feet. It is great for containers.
The aromatic foliage is deep green. The coarsely-toothed, ovate leaves are up to 2 x 1.7 inches in size.
The light blue flowers, up to 1 inch long, are borne on inflorescences, up to 5.5 x 1.8 inches in size, from early summer into early autumn.
The flowers are very attractive to butterflies and hummingbirds.
Hardy zones 5 to 9 in full sun, preferring moist, well drained soil. It is very disease resistant and also drought tolerant.
* patent photos
Agastache 'Kudos Yellow'
A fast growing but compact perennial, reaching up to 1.7 x 1.8 feet in 1 year, eventully to 2.3 x 2 feet. It is great for containers.
The aromatic foliage is gray-green. The coarsely-toothed, ovate leaves are up to 2 x 1.5 inches in size.
The intense golden-yellow flowers are borne on large inflorescences, up to 4.5 x 2 inches in size, for up to 4 months from early summer into early autumn. The flowers are very attractive to butterflies and hummingbirds.
Hardy zones 5 to 9 in full sun, preferring moist, well drained soil. It is very disease resistant and also drought tolerant.
* photo taken on Oct 6 2021 in Howard County, MD
* photo taken on Oct 30 2023 in Howard Co., MD
* patent photos
Agastache 'Licorice Candy'
A perennial, reaching up to 5 x 6 feet.
The aromatic foliage is gray-green. The foliage can be used as a subsitute for tarragon.
The rosy-pink flowers, remain during summer into early autumn.
Hardy zones 6 to 9 in full sun on well drained soil.
* photos taken on Sep 3 2021 @ U.S. National Arboretum, DC
Agastache mexicana ( Mexican Giant Hyssop )
An upright perennial, reaching a maximum height of 5 ( usually half ) feet, that is native to Mexico. It is longer lived than most species of Agastache.
The ovate leaves, up to 2.5 inches in length, are deep green.
The young leaves can be used in herbal teas and are lemon scented.
The deep pinkish-red flowers are borne on spikes up to 12 inches in length, from spring to late autumn.
Hardy zones 7 to 9 in full sun to partial shade on light, neutral to alkaline, well drained soil.
* video found on internet
'Acapulco Orange'
Long lived, fast growing and compact in habit, reaching 11 x 14 inches in 3 months from a rooted cutting, eventually up to 2 x 2 feet.
The leaves are up to 1.7 x 0.9 inches in size.
It bears orange flowers over a long season from early summer until autumn frosts. Great for containers.
Hardy zones 5b to 9
'Acapulco Rose'
Long lived, fast growing and compact in habit, reaching 11 x 14 inches in 3 months from a rooted cutting, eventually up to 2 x 2 feet.
The leaves are up to 1.7 x 0.9 inches in size.
It bears rosy-purple flowers over a long season from early summer until autumn frosts. Great for containers.
Hardy zones 5b to 9
'Acapulco Salmon & Pink'
A compact hybrid, reaching up to 2.5 feet x 15 inches.
The leaves are up to 1.7 x 0.9 inches in size.
The abundant, bicolor pink and orange, tubular flowers are borne mid summer to mid autumn.
Hardy zones 6 to 9.
* photo taken on Sep 16 2013 in Columbia, MD
Agastache micrantha ( White Giant Hyssop )
A perennial native from Arizona to Texas.
The flowers are white.
Agastache neomexicana ( New Mexico Hummingbird Mint )
A sturdy, stiffly upright perennial, reaching up to 2.5 x 1.5 feet, native to the southwest U.S.
The fragrant, bright pink flowers are borne on tight spikes during mid summer to early autumn.
Hardy zone 5 to 9 in full sun on very well drained soil.
Agastache nepetoides ( Yellow Giant Hyssop )
A fast growing perennial, reaching a maximum size of 8 x 4 ( rarely over 6 ) feet, that is native to southern Canada and the eastern U.S. ( southern Ontario to southern Quebec south to Georgia ). In the Windsor/Essex County, Ontario region; it was abundant along the Detroit River, around Point Pelee as well as the Ohio shore during the 1800s. It was also common at Detroit, Michigan during that time.
The scallop-edged, ovate leaves are up to 6 x 3 inches in size.
The greenish-yellow flowers are borne on dense spikes, up to 9 inches in length, during mid summer to early autumn.
Hardy zones 2 to 8 in full sun to partial shade.
Agastache 'Orange Flare'
A vigorous, sturdy hybrid cultivar ( Agastache rupestris x A. 'Desert Sunrise' ), reaching up to 3 x 1.5 feet, that originated at High Country Gardens.
The very aromatic, fine textured foliage is gray.
The deep orange flowers are borne on large, full spikes from mid summer through autumn.
The flowers attract hummingbirds.
Hardy zones 5 to 9 in full sun to partial shade on light, well drained soil.
Very easy to grow.
Agastache pallida ( Pale Giant Hyssop )
A perennial, reaching up to 2 feet, that is native to Arizona.
The bright pink flowers are borne on upright spikes from late summer into autumn.
Hardy zones 6 to 9 in full sun to partial shade, it is more moisture tolerant than most Agastache.
Agastache 'Poquito Butter Yellow'
Fast growing but very dense and compact in habit, reaching up to 2.2 x 1.8 feet in 2 years. Hummingbirds love it and it is great for borders and as a perennial bedding plant.
The aromatic foliage is deep green. The ovate leaves are up to 1.6 x 1 inches in size.
The deep yellow flowers are borne on spikes that are very large, up to 4.4 x 1.6 inches in size, in comparison to plant size. They appear early summer until autumn frost.
Hardy zones 5 to 9.
* patent photos
Agastache 'Poquito Dark Blue'
Vigorous but very dense and compact in habit, reaching up to 2.2 x 1.8 feet in 2 years. Hummingbirds love it and it is great for borders and as a perennial bedding plant.
The aromatic foliage is deep green. The ovate leaves are up to 1.8 x 1 inches in size.
The violet-blue flowers are borne on spikes, up to 5 x 1.3 inches in size, that are very large in comparison to plant size. They appear early summer until autumn frost.
Hardy zones 5 to 9.
* patent photo
Agastache 'Poquito Lavender'
Fast growing but very dense and compact in habit, reaching up to 2.2 x 1.8 feet in 2 years. Hummingbirds love it and it is great for borders and as a perennial bedding plant.
The aromatic foliage is deep green. The ovate leaves are up to 1.6 x 1 inches in size.
The lavender-pink flowers are borne on spikes, up to 8 x 1.2 inches in size, that are very large in comparison to plant size. They appear early summer until autumn frost.
Hardy zones 5 to 9.
* patent photo
Agastache 'Poquito Orange'
Fast growing but very dense and compact in habit, reaching up to 2.2 x 1.8 feet in 2 years. Hummingbirds love it and it is great for borders and as a perennial bedding plant.
The aromatic foliage is deep green. The ovate leaves are up to 1.6 x 1 inches in size.
The intense orange flowers are borne on upright spikes, up to 4.4 x 2.8 inches in size, that are very large in comparison to plant size. They appear early summer until autumn frost.
Hardy zones 5 to 9.
* photos taken on June 6 2023 in Columbia, MD
* photos taken on June 13 2023 in Columbia, MD
* photos taken on June 19 2023 in Columbia, MD
* photos taken on July 13 2023 in Columbia, MD
* photos taken on July 28 2023 in Columbia, MD
* photos taken on Aug 11 2023 in Columbia, MD
* photos taken on Aug 27 2023 in Columbia, MD
* photos taken on Aug 31 2023 in Columbia, MD
* photos taken on Sep 21 2023 in Columbia, MD
* photos taken on Sep 28 2023 in Columbia, MD
* photos taken on Oct 10 2023 in Columbia, MD
Agastache pringlei ( Pringle's Hummingbird Mint )
A perennial, reaching up to 4 feet in height, that is native to New Mexico.
The lavender-pink flowers are borne late summer into autumn.
Hardy zones 7 to 10 in full sun and very well drained soil.
Agastache 'Purple Haze'
A moderate growing, compact perennial, reaching up to 3 x 3 feet, bearing long upright deep violet-blue flower spikes, up to 12 inches in length. The flowers are borne over a very long season from early summer to autumn frosts. Hardy zones 6 to 10 ( possibly 5 ) in full sun to partial shade on light, well drained soil. It is more moisture tolerant than most Agastache and thrives in much of the eastern U.S.
* photos taken on Aug 29 2013 in Clarksville, MD
* photo taken on Sep 3 2017 @ U.S. National Arboretum, D.C.
Agastache 'Queen Nectarine'
Fast growing, dense and rounded in habit, reaching up to 3.1 x 3.7 feet in 3 years. The foliage is deep green. The broadly-lanceolate leaves are up to 1.8 x 0.7 inches in size. The flowers are peach-orange and pink. They appear mid-summer until autumn frost.
Hardy zones 5 to 9 ( tolerating -20 F ). It is highly mildew resistant.
* photo taken on Sep 17 2023 in Burtonsville, MD
* patent photos
Agastache rugosa ( Purple Giant Hyssop )
Also called Korean Mint. A fast growing, erect perennial, reaching a maximum size of 5 x 3 ( rarely over 3 ) feet, that is native to eastern Russia, much of China, Korea and most of Japan.
The aromatic, coarsely toothed, ovate leaves are up to 4.5 x 2.8 inches in size. The foliage is glossy mid-green above, hairy beneath.
The abundant, bluish-purple flowers are borne on attractive, compact, cylindrical spikes, up to 6 x 1 inches. The tubular flowers are borne early summer to early autumn.
Hardy zones 4 to 9 in full sun to partial shade.
A herb considered extremely important in traditional Chinese medicine, this plant contains antibacterial, antifungal, anticancer, anti-atherogenic, carminative and other properties. The leaves make a nice anise flavored tea.
* photo taken on Sep 3 2022 @ U.S. National Arboretum, Wash., DC
'Alabaster'
Reaches up to 2 feet, with pure white flowers borne early summer into early autumn.
'Honeybee White'
Compact with white flowers.
'Honeybee Blue'
Compact with blue flowers.
Agastache rupestris ( Threadleaf Giant Hyssop )
A moderate growing, dense foliaged perennial, reaching a maximum size of 4 x 4 feet, that is native to the southern Rockies from southern Arizona and New Mexico into northern Mexico.
The thread-like leaves are gray-green.
The abundant, mid-pink flower spikes are borne early summer to autumn frosts.
Hummingbirds love the flowers of this plant.
Hardy zones 4 to 9 on hot sunny sites on very well drained soil. Very drought tolerant.
Resistant to deer and rabbits.
* photo of unknown internet source
* photo taken on Oct 21 2014 @ Smithsonian Inst., Washington, DC
* video found on internet
'Tutti Frutti'
Upright in habit, reaching a maximum size of 6 x 3 feet, with very fragrant, multicolored, reddish-pink flowers.
The foliage is gray-green.
Agastache scrophulariifolia ( Purple Giant Hyssop )
A shrubby perennial, reaching up to 6 x 4 feet, that is native to eastern North America ( from eastern South Dakota to central Minnesota to central Wisconsin to southern Michigan to far southern Ontario to central New York State to New Hampshire; south to northeast Kansas to central Kentucky to far northern Georgia to central Virginia ). It is extinct in Kansas and Georgia; endangered in South Dakota, Nebraska, Missouri, Kentucky, Tennessee, Maryland, New Jersey, Connecticut, Rhode Island, Massachusetts and New Hampshire. It was considered to be extinct in Ontario but was recently rediscovered on Pelee Island.
The toothed, cordate, ovate leaves, up to 4 x 2 inches in size, are mid-green.
The pale purple flower spikes are borne during summer. The flowers are highly attractive to butterflies and bees.
Hardy zones 4 to 6 in full sun to partial shade on consistently moist soil.
Agastache 'Summer Love'
A vigorous, dense, upright hybrid between Agastache cana & A. pallidiflora; reaching up to 3 x 2 feet in 2 years, eventually slightly wider.
The foliage is bright green. The ovate leaves average 1.7 x 1 inches in size.
The red-purple flowers are borne on very abundant, dense, upright spikes up to 12 inches in length, from late spring into autumn.
The flowers are not scented.
Hardy zones 6 to 9 in full sun on well drained soil. Tolerant of hot humid summers as well as drought.
* patent photo
Agastache 'Summer Sunset'
A vigorous, compact, dense, upright perennial, reaching up to 1.2 x 1 feet in 6 months, eventually to 1.5 x 2 feet in size. It is great for containers.
The ovate lesaves are up to 2 x 1.7 inches in size. The foliage is mid-green above, yellowish-green beneath.
The intense orange flowers are borne on inflorescences, up to 7 x 2.8 inches in size, early summer until autumn frost. It is very attractive to butterflies and hummingbirds.
Hardy zones 6 to 9 in full sun. Very drought tolerant.
* photo taken on Sep 16 2013 in Columbia, MD
* patent photo
Agastache 'Sunrise Blue'
A fast growing, sturdy perennial, reaching up to 4 x 3 feet.
The foliage is gray-green.
The showy, violet-blue flowers appear on upright spikes all summer until autumn frosts. Hardy zones 6 to 9 ( 5 on protected sites )
* photo taken on Sep 27 2021 in Columbia, MD
Agastache 'Sunrise Red'
A fast growing, sturdy perennial, reaching up to 4 x 3 feet.
The foliage is gray-green.
The showy, red flowers appear on upright spikes all summer until autumn frosts. Hardy zones 6 to 9 ( 5 on protected sites )
* photo taken on May 29 2020 in Elkridge, MD
Agastache urticifolia ( Nettle-Leaf Giant Hyssop )
A perennial, reaching up to 6 x 2.5 feet in size, that is native to the Rocky Mountains from south-central British Columbia to central Montana; south to central California to western Colorado.
The aromatic, toothed, ovate leaves are bright to mid green.
The flowers are whitish to pale purple. They are borne on spikes during late summer.
Hardy zones 5 to 8 in full sun.
* photos taken by Jean Pawek @ CalPhotos
ADDITIONAL VARIETIES
https://www.freepatentsonline.com/PP20371.html
https://www.plantdelights.com/products/agastache-rosie-posie-pp-25857
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