Hyssop (Agastache 'Blue Boa') in the Anise Hyssops Database

1 company sells this plant

Common names:
Give a thumbs up Hyssop
Give a thumbs up Anise Hyssop
Give a thumbs up Giant Hyssop

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Plant Height: 30 - 36 inches
Plant Spread: 24 inches
Leaves: Fragrant
Flowers: Showy
Other: Flower spikes are long, wide and very showy
Flower Color: Purple
Other: Deep violet-blue
Flower Time: Late spring or early summer
Late summer or early fall
Other: Deadheading faded flower spikes ensures more flowering throughout the season.
Suitable Locations: Xeriscapic
Uses: Cut Flower
Dried Flower
Will Naturalize
Suitable as Annual
Wildlife Attractant: Bees
Resistances: Deer Resistant
Rabbit Resistant
Drought tolerant
Propagation: Seeds: Can handle transplanting
Other info: Good self-seeder
Propagation: Other methods: Division
Containers: Suitable in 3 gallon or larger
Needs repotting every 2 to 3 years
Needs excellent drainage in pots
Miscellaneous: Patent/Plant Breeders' Rights: PP24,050 (2013); EU 38274
Awards and Recognitions: Other: "Too Good to Wait Performer" award at the 2013 Colorado State Perennial Trials

Photo courtesy Terra Nova Nurseries,Inc. www.terranovanurseries.c

'Blue Boa' was a featured
Plant of the Day for May 9, 2019.

Photo gallery:
Date: 2011-07-19Photo courtesy Terra Nova Nurseries,Inc. www.terranovanurseries.c
By NJBob
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Photo courtesy Terra Nova Nurseries
By Calif_Sue
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Location: Missouri Botanical Garden (Mobot) in St Louis Date: 2016-06-18
By jmorth
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Location: My garden in Northern KYDate: 2016-10-222016 local Meijer's; one plant.
By Marilyn
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Location: Coastal San Diego County Date: 2018-05-02Just bought this beauty!
By carlysuko
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Photo courtesy of Select Seeds.
By Joy
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This plant is tagged in:

Posted by jvdubb (48036 MI - Zone 6b) on Aug 28, 2014 1:00 PM

I purchased three plugs of 'Blue Boa' from a co-op this summer. I potted them up in one-gallon pots to allow them to get somewhat established before I planted them out in the flower beds. All three grew to fill their one-gallon pots in no time at all. This is a striking and compact Agastache, great for the middle of the border. As with many Agastaches, the stems are somewhat brittle so take care when moving the plant so as not to break it. I planted my 'Blue Boa' next to Agastache 'Kudos Gold' and it really makes the color of both pop!

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Posted by Marilyn (Northern KY - Zone 6a) on Mar 25, 2013 3:33 AM

Agastache 'Blue Boa' is one that I'd love to grow. The flower spikes are supposed to be long, wide, and extremely showy. It sounds as if it would stand out in the garden when it's in bloom. The color of this beauty is a deep violet-blue.

This was introduced by Terra Nova Nurseries.

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Plant Events from our members
lordoctagon On August 10, 2016 Plant emerged
I made two rookie mistakes with the Blue Boa: overfertilizing and insufficient drainage. It took a hit for sure, but after some aggressive pruning, it pulled through good as new.
carlysuko On April 30, 2018 Obtained plant
Bought for La Costa Anderson's Nursery.
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
Need help 😢 by carlysuko Aug 29, 2018 7:57 PM 19
Agastache late to wake? by LoriK Sep 29, 2018 1:28 PM 15
Agastache Blue Boa by jg0613 Jun 1, 2016 4:11 PM 9
Agastache seedling questions help by MariposaMaid Apr 14, 2016 11:10 AM 8
What Plant Varieties Are You Going To Get In 2016? by Marilyn May 27, 2016 6:22 PM 82
Agastache Rupestris ?varieties by jg0613 Sep 14, 2015 12:25 AM 16
Windwalker Royal Red Salvia by jg0613 Sep 14, 2015 1:29 AM 32
My Mail Order Plants For 2014 by Marilyn Mar 4, 2015 6:40 PM 57
Agastache Summer Raspberry by abhege Sep 2, 2013 9:49 PM 30
Mail Order Places To Buy Agastaches by Marilyn Aug 27, 2015 11:18 PM 20
Talking Agastaches by SongofJoy May 18, 2014 8:53 AM 229

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