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PlantFiles: Sweet Annie, Sweet Sagewort, Annual Wormwood, Huang Hua Hao
Artemisia annua

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Artemisia (ar-te-MIZ-ee-uh) (Info)
Species: annua (AN-yoo-uh) (Info)

7 vendors have this plant for sale.

28 members have or want this plant for trade.


4-6 ft. (1.2-1.8 m)

18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Not Applicable

Sun Exposure:
Full Sun
Sun to Partial Shade

Handling plant may cause skin irritation or allergic reaction
Pollen may cause allergic reaction

Bloom Color:
Bright Yellow
Chartreuse (Yellow-Green)

Bloom Time:
Mid Summer
Late Summer/Early Fall

Grown for foliage

Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:

Propagation Methods:
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost

Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry
Allow seedheads to dry on plants; remove and collect seeds

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to view:

By poppysue
Thumbnail #1 of Artemisia annua by poppysue

By Weezingreens
Thumbnail #2 of Artemisia annua by Weezingreens

By ladygardener1
Thumbnail #3 of Artemisia annua by ladygardener1


9 positives
2 neutrals
1 negative

Gardeners' Notes:

Neutral drawings12 On Apr 11, 2013, drawings12 from Saratoga Springs, NY wrote:

I have never seen this plant. I heard a story on the radio about it, and it is used in making drugs to treat malaria. There is a worldwide shortage of it and it is extremely valuable to drug companies who have been paying 110-550 dollars/lb. for it (dried?) They are trying to figure out how to manufacture artemisinin synthetically in labs. I was thinking maybe someone could figure out how to supply it to drug companies. I don't know where they might be, but most malaria cases are in Africa and other equatorial countries. Please read this wikipedia article:

Positive bonehead On May 2, 2010, bonehead from Cedarhome, WA (Zone 8b) wrote:

A thoroughly lovely plant. Smells heavenly. Self-sows wherever it likes, but easy to pull out (and what a treat to release the fragrance). Thin asparagus-ferny fall plant that blends well with others. What's not to like about it?

Positive ladygardener1 On Sep 6, 2009, ladygardener1 from Near Lake Erie, NW, PA (Zone 5a) wrote:

If you are into fragrant plants this one is a must have. The down side is it will reseed everywhere. So if you are a neat flowerbed gardener and hate to weed this one is not for you.
However it is not that hard to pull out and thin in the spring and the smell makes the job easier.

Positive mainenewbie On Sep 18, 2008, mainenewbie from Bangor, ME (Zone 5a) wrote:

A friend of mine gave me some Sweet Annie to dry in my kitchen. It smelled so wonderful and interestingly, the scent changed over time as it dried. I loved it so much she gave me some seedlings which I planted in a fairly shady bed with hostas, pachysandra, and heuchera. They really took to the spot as she said they would. Anyway, I love it and frankly if it takes over my yard the smell is worth it. Talk to me in five years though!

Positive CurtisJones On Apr 16, 2008, CurtisJones from Longmont, CO wrote:

From your friends at Botanical Interests: Sweet Annie is an annual with finely cut, highly aromatic green foliage and reaches 4'-6' tall in one season! Also known as 'Sweet Wormwood', this heirloom plant is a must for anyone who loves to make wreaths, potpurri, or herbal crafts. the pleasantly scented foliage also makes a nice floral filler in vases where it is often substituted for Baby's Breath. It produces insignificant chartreuse flowers in late summer to fall which should be removed if reseeding is not desirable.
This plant grows best in full sun and is attractive to bees, butterflies, and birds.

Positive Mrs_Ed On Mar 21, 2008, Mrs_Ed from Whiteside County, IL (Zone 5a) wrote:

This is also beautiful in containers, but do remember to trim it before the flowers seed.

Otherwise, we like to grow this in an area where we can mow and keep it in check. The smell then is GREAT.

Positive Joemnk On Jul 28, 2007, Joemnk from Pittsburgh, PA wrote:

I bought Sweet Annie from a local garden club sale because it was reported to repel deer who have become a big problem in our suburban Pittsburgh PA community. Joemnk

Positive winterberry On Sep 8, 2005, winterberry from Liberty, IN (Zone 5a) wrote:

Sweet Annie self-sows and grows abundantly in my garden. As a floral designer, I love to cut it and use it in dried wreaths, tabletop Christmas trees, etc. every year. I also love its scent and use it incorporated in bows to tie on Christmas presents or other small gifts (like bars of soap). Even though it is very invasive, I can generally use all of it, so it's worth putting up with its height and the fact that it, along with tansy, have pretty much taken over one of my gardens.

Positive hotnhumid On Apr 20, 2005, hotnhumid from Searcy, AR (Zone 7a) wrote:

Yes, this plant reseeds itself profusely; it is not pretty; but the scent is wonderful. I first got this plant from a coworker in Indiana, brought it to Arkansas, and it has never failed to come back. I always keep at least one plant in my garden. We hang some in our house every fall and enjoy the scent every time we walk by.

Positive Meandy On Aug 16, 2003, Meandy from Tipton, IN (Zone 5a) wrote:

I love the fragrance of this plant! It is an annual for me and has never reseeded though I wouldn't mind a few new seedings to sprout each year.

Neutral Ladyfern On Aug 4, 2003, Ladyfern from Jeffersonville, IN (Zone 6a) wrote:

I have Sweet Annie growing under a maple tree. The harsh conditions keep it in check! A few self-seeded volunteers come up, but not bad. It's a wonderfully aromatic plant to use dried in wreathes, etc., though it doesn't add much to the garden scene in my opinion.

Negative poppysue On Jan 22, 2003, poppysue from Westbrook, ME (Zone 5a) wrote:

Do yourself a favor and don't allow Sweet Annie to go to seed in your garden! I learned the hard way and have been pulling out seedlings for years.


This plant has been said to grow in the following regions:

Seward, Alaska
Little Rock, Arkansas
Longmont, Colorado
Stonington, Connecticut
Athens, Illinois
Monmouth, Illinois
Rock Falls, Illinois
Sterling, Illinois
Anderson, Indiana
Cedar Grove, Indiana
Jeffersonville, Indiana
Liberty, Indiana
Patriot, Indiana
Tipton, Indiana
Valparaiso, Indiana
New Orleans, Louisiana
Opelousas, Louisiana
Bangor, Maine
Adrian, Michigan
Edwardsburg, Michigan
Carthage, Missouri
Mount Vernon, Missouri
Binghamton, New York
Van Etten, New York
Wallkill, New York
Columbia Station, Ohio
Portsmouth, Ohio
Stow, Ohio
Claremore, Oklahoma
Albion, Pennsylvania
Bethel Park, Pennsylvania
Mercer, Pennsylvania
Pittsburgh, Pennsylvania
Tionesta, Pennsylvania
Wilkes Barre, Pennsylvania
Jonesborough, Tennessee
Austin, Texas
Hallettsville, Texas
Houston, Texas
Layton, Utah
Petersburg, Virginia
Stanwood, Washington
Cody, Wyoming

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