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Agastache scrophulariifolia |
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| Common name |
purple giant hyssop |
| Family |
lamiaceae |
| Life cycle |
perennial (Z4-9) |
| Flowers |
purple spikes throughout summer |
| Size |
2-4' tall |
| Light |
full sun-part shade |
| Cultural notes |
average garden soil. drought-tolerant |
From seed  |
self-sows in my garden. indoors, give several weeks cold stratification.
detailed seed-starting info below
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| Seed ripens | late October |
Trouble-free plant with fragrant, textured foliage. Some seedlings come up with bright green rather than purple-tinged foliage, and develop white flowers. I prefer the purple, so I weed the white ones out, although I guess in the agastache genus white is the more uncommon color.
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We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston. Seed for this plant is included on my seed trade list One or more images of this plant are included in my stock photo catalog About my plant portraits
PlantLinks to other web pages about Agastache scrophulariifolia
Visitors to this page have left the following comments| Sue Manning | Aug 21, 2006 | A friend gave me a split from a plant she loves in her garden. She didn't know the name of it. I planted it in spring and have enjoyed it all summer. After sifting through my garden books, I could not nail down what it was. I came upon your web site and with the help of your awesome phots was able to determine that the plan I love is the Purple Giant Hyssop! From the photo to the detailed description of how the plant grows (she also said that it spreads and just to pull out what you don't want) - Thanks so much, I can't wait to share this information with her. |
| Marcia Murphy | Jun 25, 2008 | I started mine from seed, many years ago. My original plants where just blue or white. This year I did notice that they are coming out with more colors. I have picked up a couple of the newer varieties to see how they go. I love this plant as it is long blooming and attracts butterflies, honeybees and hummingbirds. |
| Diane | Jun 12, 2018 | This Plant has been growing all spring and is now 2ft tall and has multiple blue/purple spikes of flowers. Wikipedia identified it as a Korean Mint Plant. An Herb. The leaves are very fragrant. It was also Identified as a Hyssop. I can't wait to see the Butterflies and Bees it will attract. |
- Seed from '01 garden. Baggy 70F (5w; 3%G, 7d)-35F (5w)-70F (33%G, 4-13d)
- Seed from '15 garden. Pot outside 11/10 (some G, 16-40d)
Cold treatment appears to be helpful.
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common mis-spellings: scrophulariaefolia
Last modified:
February 25, 2018
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