by High Country Gardens

agastache blue boa
Agastache Blue Boa.

This genus of native plants has held my full attention for more than 20 years. During that time, I have enjoyed growing, breeding and selecting new cultivars here in my Santa Fe, NM gardens. No doubt, my intense interest in these perennials has been helped by the fact that they are very successfully grown in this high desert climate. (This is because many of the native Agastache species are found in my neck of the woods; the Southwestern US and northern Mexico.)

agastache acapulco peach.
Hybrid Hummingbird Mint Acapulco Deluxe Peach.

Here are the New Agastache Varieties for Spring 2017:

  • Agastache Acapulco® Deluxe Peach - 12-15" tall x 12-15" wide. This is a very compact new hummingbird mint with pretty pastel-pink flowers that attract hummingbirds to your landscape. Use it in container gardens because it's long blooming and makes an excellent annual flower companion.
  • Agastache Acapulco® Deluxe Yellow - 12-15" tall x 12-15" wide. This too is a very compact new hummingbird mint with pretty light yellow flowers that attract hummingbirds. Use it in container gardens because it is long blooming and makes an excellent annual flower companion.
  • 'Blue Boa' - 30-36" tall x 15-18" wide. Here is a stunning new hybrid variety that blooms for several months from mid- to late summer with showy spikes of deep violet-blue flowers. This perennial is a stiffly upright grower with large green leaves that grows best in fast draining soil and average moisture levels; it's not a xeric species. Leave the stems in place over the winter months to improve cold hardiness. Seedling will not be true-to-type and should be weeded out.
  • Agastache foeniculum.
    Agastache foeniculum or Blue Giant Hyssop.
  • Agastache foeniculum (Blue Hyssop) - 30-36" tall x 15-18" wide. Native to the northern tier states of the US and Canada, this exceptionally cold hardy Hyssop blooms for many months with smoky-blue to mid-blue flowers held above attractive, aromatic foliage. An outstanding perennial for attracting bees and butterflies with its nectar-rich flowers, is a highly recommended perennial for gardeners in the moister eastern half of the country, and in the northern tier states of the West like Montana and Wyoming. This species is reliably USDA zone 4 cold hardy. Just be sure to give it adequate water in the summer as it's not as xeric as the Southwestern species.
  • Agastache rupestris 'Apache Sunset' (Compact Licorice Mint Hummingbird Mint) - 18-24" tall x 15" wide. This is a semi-dwarf selection of this species that is about 1/3 shorter in flower than Glowing Embers® or the original selection of Agastache rupestris. It's seed grown so plants will not be uniform as cutting grown plants like Glowing Embers®.

And as I've talked with High Country Gardens customers over the years, I have come to understand how the Agastache react in regions of the US with different climates than Santa Fe. That's why I like to offer a wide variety of species and cultivars; to give gardeners more plants from which to best match their growing conditions.

Agastache rupestris Apache Sunset
Agastache rupestris Apache Sunset

Understanding Region Differences When Choosing Agastache For Your Garden

For gardeners in cold winter, higher rainfall areas (especially east of the Mississippi River), plant selection is essential for long term success with these incredible flowering perennials.

agastache acapulco deluxe yellow.
Hybrid Hummingbird Mint Acapulco Deluxe Yellow
 

How To Plant Agastache

Just be sure to plant into fast draining, low humus ("lean") soils in full sun. Mulch with small diameter gravel to protect the crown from winter moisture and only fertilize in the fall with a low nitrogen, high trace mineral fertilizer like Yum Yum Mix. No chemical fertilizers (Miracle Gro or similar higher nitrogen formulations) as these cause the plants to grow like annuals and not be tough enough to make it through winter.

Helpful Hint: Fall Care For Agastache - Improving Cold Hardiness of Hummingbird Mints

It is essential that you not cut back hummingbird mints in the fall. Leave the old stems from last summer's growing season on the plants. Nutrients from the stems help to feed the crown and fortify it against winter cold. Wait until mid-spring in your area (a month or so before last frost) to cut them back. Remove the old stems just above the tuft of green foliage growing from the crown.

Agastache in late fall.
In mid-spring, prune Agastache by removing the old stems just above the tuft of green foliage growing from the crown.

  1. FlowerKisser™ Arizona Snow Agastache, Agastache urticifolia Arizona Snow

    FlowerKisser® Arizona Snow Agastache (Agastache urticifolia 'Alba') is a pure white flowered form of mountain hyssop, selected for its exceptional cold hardiness and nectar-rich flo...

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    FlowerKisser™ Arizona Snow Agastache FlowerKisser™ Arizona Snow Hummingbird Mint (Hyssop) Agastache urticifolia Arizona Snow
    Sale Price I Save 5%
    $12.99 Sale $12.34
    Per Plant - 5" Deep Pot
    FlowerKisser® Arizona Snow Agastache (Agastache urticifolia 'Alba') is a pure white flowered form of mountain hyssop, selected for its exceptional cold hardiness and nectar-rich flowers. Stunning flowers and fragrant foliage make this a must-have addition to attract native bees and butterflies. Its very upright growth habit make it a wonderful choice for the perennial border. Deer and rabbit resistant. A 2020 High Country Gardens Introduction.
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  2. 'Korean Zest' Agastache compact spikes of blue-violet flowers, Agastache rugosa

    ‘Korean Zest’ Agastache (Agastache rugosa), with its refreshing mint scented flowers and foliage, blooms all season and attracts an amazing number of bees and butterflies to its ...

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    Korean Zest Agastache Korean Zest Hummingbird Mint Agastache rugosa Korean Zest
    Sale Price I Save 10%
    $12.99 Sale $11.69
    Per Plant - 5" Deep Pot
    ‘Korean Zest’ Agastache (Agastache rugosa), with its refreshing mint scented flowers and foliage, blooms all season and attracts an amazing number of bees and butterflies to its compact spikes of blue-violet flowers. Long-lasting blooms from late spring to early fall make ‘Korean Zest’ a "must have" perennial in the pollinator garden. Aromatic foliage makes Agastache deer and rabbit resistant. Also known as Hummingbird Mint or Hyssop.
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  3. Pink and Orange and Silver Agastache rupestris, Agastache rupestris, Licorice Mint or Sunset Hyssop

    Agastache rupestris (Licorice Mint Hyssop) is one of the best, most durable species in the Agastache family. With smoky orange flowers held by lavender calyxes, the entire plant is s...

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    Agastache rupestris Licorice Hummingbird Mint (Sunset Hyssop) Agastache rupestris
    As low as $11.99 Sale $11.39
    Per Plant - 5" Deep Pot
    Agastache rupestris (Licorice Mint Hyssop) is one of the best, most durable species in the Agastache family. With smoky orange flowers held by lavender calyxes, the entire plant is scented like licorice and mint. A 1996 High Country Gardens introduction. Drought resistant/drought tolerant perennial plant (xeric).
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  4. Agastache rupestris Glowing Embers, Glowing Embers Licorice Mint Hyssop

    Agastache Glowing Embers is a fantastic selection of Licorice Mint Hyssop (Hummingbird Mint) with fragrant foliage and glowing orange-red tubular flowers that are a favorite with hum...

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    Glowing Embers® Agastache Glowing Embers® Licorice Hummingbird Mint (Hyssop) Agastache rupestris Glowing Embers®
    As low as $10.49 Sale $9.97
    Per Plant - 5" Deep Pot
    Agastache Glowing Embers is a fantastic selection of Licorice Mint Hyssop (Hummingbird Mint) with fragrant foliage and glowing orange-red tubular flowers that are a favorite with hummingbirds. Plant in containers to enjoy this plant in the eastern U.S. Exclusive. 24-26" tall x 24-28" wide.
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  5. Agastache Blue Blazes

    Blue Blazes is a large growing hybrid hummingbird mint with lavender-purple flower spikes. Very long blooming, its flowers attract hummingbirds, butterflies, and bees making it an es...

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    Blue Blazes Agastache Blue Blazes Hummingbird Mint (Hyssop) Agastache Blue Blazes
    Sale Price I Save 10%
    $9.99 Sale $8.99
    Per Plant - 5" Deep Pot
    Blue Blazes is a large growing hybrid hummingbird mint with lavender-purple flower spikes. Very long blooming, its flowers attract hummingbirds, butterflies, and bees making it an essential perennial for pollinators.
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  6. Pink Agastache Ava

    Agastache Ava is one of High Country Gardens very best plant introductions, renowned for its tall spikes of deep rose-pink flowers held by raspberry-red calyxes. This vigorous hybrid...

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    Ava Agastache Ava's Hummingbird Mint (Hyssop) Agastache Ava
    As low as $11.99 Sale $11.39
    Per Plant - 5" Deep Pot
    Agastache Ava is one of High Country Gardens very best plant introductions, renowned for its tall spikes of deep rose-pink flowers held by raspberry-red calyxes. This vigorous hybrid Hummingbird Mint blooms for many months beginning in mid-summer. 2005 Plant of the Year.
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  7. Red and Orange Agastache Coronado Red, Agastache Coronado Red, Coronado Red Hummingbird Mint

    Coronado Red® Hyssop (Agastache Pstessene Coronado® Red) is a distinctive selection of Hummingbird Mint with silver-green foliage and spikes of orange-red flowers. This Agastache p...

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    Coronado® Red Agastache Coronado® Red Hummingbird Mint (Hyssop) Agastache aurantiaca Pstessene
    As low as $10.99 Sale $9.89
    Per Plant - 5" Deep Pot
    Coronado Red® Hyssop (Agastache Pstessene Coronado® Red) is a distinctive selection of Hummingbird Mint with silver-green foliage and spikes of orange-red flowers. This Agastache plant has a very vertical habit and blooms beginning in mid-summer. A 2009 Plant Select winner. Drought resistant perennial plant (xeric).
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  8. Pink Agastache cana Rosita, Agastache cana Rosita, Rosita Hummingbird Mint

    Rosita was selected for its smaller size and dense spikes of raspberry-red flowers (50% more flowers than the typical Agastache cana). It blooms for several months beginning in early...

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    Rosita Agastache Rosita Hummingbird Mint (Hyssop) Agastache cana Rosita
    As low as $11.99 Sale $11.39
    Per Plant - 5" Deep Pot
    Rosita was selected for its smaller size and dense spikes of raspberry-red flowers (50% more flowers than the typical Agastache cana). It blooms for several months beginning in early to mid-summer. A High Country Gardens introduction.
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Text and Photos by Founder and Chief Horticulturist David Salman.

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