Commelina Species, Asiatic Dayflower, Blue Dayflower, Mouse Ears

Commelina communis

Family: Commelinaceae (ko-mel-ih-NAY-see-ee) (Info)
Genus: Commelina (kom-uh-LIN-uh) (Info)
Species: communis (KOM-yoo-nis) (Info)




Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun


Grown for foliage



Foliage Color:

Medium Green


12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)


9-12 in. (22-30 cm)


Not Applicable

Where to Grow:

Can be grown as an annual


Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Dark Blue

Bloom Characteristics:

Unknown - Tell us

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Summer

Mid Fall

Other details:

May be a noxious weed or invasive

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:


Propagation Methods:

From herbaceous stem cuttings

From seed; direct sow after last frost

Seed Collecting:

Bag seedheads to capture ripening seed

Allow pods to dry on plant; break open to collect seeds


This plant is said to grow outdoors in the following regions:

Montevallo, Alabama

Fallbrook, California(5 reports)

Pacoima, California

San Diego, California

Santa Monica, California


West Haven, Connecticut

Washington, District of Columbia

Atlantic Beach, Florida

Bradley, Florida

Clearwater, Florida

Daytona Beach, Florida

Jacksonville, Florida

Merritt Island, Florida

Miami, Florida

Pensacola, Florida

Pompano Beach, Florida

Safety Harbor, Florida

Tallahassee, Florida

Barnesville, Georgia

Brunswick, Georgia

Savannah, Georgia

Hampton, Illinois

Hinsdale, Illinois

Mount Prospect, Illinois

Oak Park, Illinois

Columbus, Indiana

Macy, Indiana

Cedar Rapids, Iowa

Fredonia, Kansas

Farmington, Kentucky

New Orleans, Louisiana

Cumberland, Maryland

Potomac, Maryland

Valley Lee, Maryland

Boston, Massachusetts

Halifax, Massachusetts

Needham, Massachusetts

Winchester, Massachusetts

Bay City, Michigan

Erie, Michigan

Grand Haven, Michigan

Royal Oak, Michigan

Bowlus, Minnesota

Little Falls, Minnesota

Minneapolis, Minnesota

Saint Cloud, Minnesota

Waynesboro, Mississippi

Cole Camp, Missouri

Kansas City, Missouri

Saint Robert, Missouri

Sullivan, Missouri

Flemington, New Jersey

Metuchen, New Jersey

West Milford, New Jersey

Amityville, New York

Brooklyn, New York

Massapequa, New York

Staten Island, New York

West Babylon, New York

Concord, North Carolina

Hillsborough, North Carolina

Mount Airy, North Carolina

Bucyrus, Ohio

Cincinnati, Ohio

Columbus, Ohio

Glouster, Ohio

Mount Orab, Ohio

Newark, Ohio

Comanche, Oklahoma

Tulsa, Oklahoma

Allentown, Pennsylvania

Doylestown, Pennsylvania

Millersburg, Pennsylvania

Osceola, Pennsylvania

Pittsburgh, Pennsylvania

Wilkes Barre, Pennsylvania

Campobello, South Carolina

Spartanburg, South Carolina

Crossville, Tennessee(2 reports)

Knoxville, Tennessee

Mc Minnville, Tennessee

Murfreesboro, Tennessee

Viola, Tennessee

Austin, Texas

Baytown, Texas

Blanket, Texas

Boerne, Texas

College Station, Texas

Fort Worth, Texas(2 reports)

Fulshear, Texas

Harlingen, Texas

Houston, Texas(2 reports)

Lake Jackson, Texas

Lipan, Texas

Livingston, Texas

Mont Belvieu, Texas

San Antonio, Texas

Santo, Texas

Spring, Texas

Norfolk, Virginia

Virginia Beach, Virginia

Williamsburg, Virginia

Cabin Creek, West Virginia

Princeton, West Virginia

Muscoda, Wisconsin

Onalaska, Wisconsin

show all

Gardeners' Notes:


On Apr 11, 2020, blazeaglory from Westminster, CA wrote:

I first found this growing in my Orange County CA backyard roughly 5 to 7 years ago in one far corner up against my neighbours brick fence/border. I didn't think much of it until the last couple years it has EXPLODED in growth!

Once it reached any kind of organic rich or well fed soil it just takes over and saps any li uhfe out of anything on the ground, in my case instead of grass I use a "pasture" mix of nitrogen sequestering greens such as different clovers, dandelions (which are BENEFICIAL to the garden) chickpeas, etc. I use them to feed pollinators such as bees and butterflies plus it's less maintenance intensive than grass. Anyways, the Asiatic Dayflower steam rolled a good area of my backyard and choked out allot of anything in its path. Roughly 1 year ago there ... read more


On Jul 18, 2017, KLBM from Mount Airy, NC wrote:

I have grown these delightful little annuals for decades, all descended from one I found at my grandmother's house in MN in 1963. I have planted them everywhere I've moved to, including multiple places in MN, WI, and NC, where I now live. They do spread, but I have not found them invasive; they prefer moist, semi-shaded locations but will grow just about anywhere. However, unless conditions are good they are easily hoed out or crowded out by other plants, weeds, or mulch. The seeds are easily collected when the cases turn brown and dry. I expect the ones in my garden now will outlive me.


On Jul 6, 2017, Jacksinpa from Doylestown, PA wrote:

Our yard is on one corner of an oval road 1/2 mile long. (It used to be a race track in the former town fair grounds) & as a result our lot is shaped in the form of a slice of pizza. Our side yard is the site of our whole house electric generator & is fenced in. After living here for 2 years I first noticed an extensive carpet of beautiful blue flowers in this part of the yard. They covered much of the area inside the fence & bloomed for the entire month of April. The flowers took up the full time efforts of its pollinator, a single bumble bee.

I had heard that these flowers are fragrant but I could not detect it with my nose.

The Asiatic Dayflower name was confirmed by a local expert on invasive wild flowers.

The plant is very tough & hardy & e... read more


On Aug 15, 2016, coriaceous from ROSLINDALE, MA wrote:

It's pretty flower---at the right time of day---but rather stingily produced. And it will outcompete the other plants you may want to grow unless you have a great deal of time for weeding. I don't think the very transient flower is worth the effort.

And the long-lived seeds in the soil mean that if you change your mind about this plant, you'll never be able to get rid of it.


On Aug 15, 2016, harvissa from Oak Park, IL wrote:

I have had this growing in my yard since I moved to our house, over 25 years ago. I have not had the negative experience that others report. It grows, but doesn't overtake areas. I let it grow, as it favors the edges of my garden in the damper spots. The blue flowers are so beautiful, and last for such a short time, that they bring much joy. Our soil is largely clay and not very good, so perhaps that is why it hasn't become a nuisance. The few times it did get in the way, I pulled it up and it didn't return.


On Nov 5, 2015, GardenElaine from Wilmington, DE wrote:

This is EXTREMELY invasive and takes over very quickly. Small amounts are easy to pull - but should be pulled continually. When I first saw it I thought liked it and left it, but it has been coming up ever since. I just visited another's backyard backing up to the stream and the ENTIRE GROUNDCOVER was this plant. It should NOT BE SOLD COMMERCIALLY. See how much it has invaded:


On Jul 23, 2015, JudyinMD from Union Bridge, MD (Zone 7a) wrote:

I, too, allowed this plant to grow for awhile because I love the bright blue flowers. When it started taking over my flower garden, I decided enough was enough and pulled it out. But I left it alone at the edge of the woods on our property because I didn't think it was hurting anything.

Well, lo and behold, we have three pastures where we keep a horse and two donkeys, and I just realized Asiatic Dayflower has completely taken over one of the pastures and is halfway to taking over a second. It has choked out everything in its path. This has practically happened overnight, and this is following a brutally cold winter.

I'm not sure what to do at this point, because it's too much to pull out by hand, and if I use some kind of weedkiller to get rid of it (which I h... read more


On Sep 5, 2014, AnnieinCanada from in the country near Kent Bridg,
Canada wrote:

Thought these little guys would be good for areas where other things did not flourish. I have been picking them out of my one garden for forty years now. Thought they were planted by my mother in law when she lived here but we're not certain about that. Have not decided yet whether they are an uncontrollable weed or a flower capable of taking on the farm! Other years I've taken them up when they weren't very big but this year I thought I'd let them grow and fill in some of the bare spots. Well, they took off and invaded big time. Took my son and I hours to pull them out and even though we were careful I'm sure we missed some roots and stems. I'll be seeing them again next year I'm sure but they won't get a chance to spread again.


On Jun 7, 2014, mulchwoman from Metuchen, NJ (Zone 6a) wrote:

My garden gets full of these, but as others have said they are extremely easy to pull up. Just found out on another site that they are edible. Don't think I will try that, but I do have a soft spot for these hardy little guys.


On Sep 16, 2013, debylutz from San Diego, CA (Zone 10a) wrote:

Don't let its beautiful blue flowers fool you. If you live in a mild-winter climate, it will quickly take over your entire irrigated landscape if you don't pull out every piece before it sets seed. If you start tearing it out after seed set, you will have a nice crop for next year.


On Jun 30, 2013, lila333 from Virginia Beach, VA wrote:

This grows in my garden in Virginia Beach. I am a half mile from the ocean and have sandy clay soil. The places where I have amended for beds explode with this stuff. I don't mind it too much in the established garden but it always gets the jump on flowers that I try to start from seed. The veggie garden seems more happy to share, this year the beans grew up a stalk so when I was weeding I let that one live. They are super easy to pull. Just run out after a rain and they offer zero resistance. This year I gave up on the bed where my banana trees are and just let it go. It killed all my perennial sprouts so it is better than nothing. I will try and pull it before it drops seed though. I did notice that this year it made a move on the tomatoes and I have blossom end rot. I wonder if it coul... read more


On Jan 11, 2013, savannahjudy from Savannah, GA (Zone 9b) wrote:

I have been trying to get rid of this for the 8 years I have lived in my house. The worst part for me is that I get nasty sick every time after I have been pulling it. I have to get my husband to do it.


On May 8, 2012, MsMuddyToes from Kansas City, MO wrote:

I believe this is the same plant that I have been fighting since we moved into our house 17 years ago. I can't get rid of it! It comes up early in the year and chokes out any other seedling. It is easy to pull, but if you miss one plant, you have a plethora of plants the next year. We have 3 acres and this plant has spread into all parts of it, although I have tried to eradicate it every year. If you spray it with poison, it kills the current plants, but then the dormant seeds just come up again. I would never buy this plant or put it into my garden. It is worse than any other plant I have every tried to get rid of, including Vinca, Ditch Lilies, Dandelions, Chickweed, and many others. Yuck! I thought it was Wandering Jew, but after looking at these pictures and reading the description, I ... read more


On May 7, 2012, bluminghausen from Columbus, OH wrote:

I was tricked by the brilliant blue flower several years ago and thought "gee that looks nice, what can it hurt?" Now, years later I'm still pulling this stuff out of cracks and gardens and all manner of places. It seems to grow several inches over night and can overwhelm an area in little time. Fortunately it's easy to pull, but be sure to discard the plants correctly because pulled plants will continue to develop seeds.


On Oct 15, 2011, keithp2012 from West Babylon, NY (Zone 7a) wrote:

I was lucky enough to find a beautiful Variegated form of this plant in my garden. I saved it and put it in it's own pot, it thrived! The next year seeds from my plant that naturally were sown sprouted, and I found 2 new variegated seedlings. I saved them and they both are large and i've had over 60 flowers from them, my only trouble is I have no idea how to collect seeds. I have looked in the pods, and the seeds are always white and squishy, I dont know how a pod looks with ripened seeds. Seeds seem to pass the variegated form very well. If I knew how to save seeds i'd love to share this beautiful form of this plant. I uploaded an image of it on the database.


On Oct 2, 2011, Laniy from Amityville, NY wrote:

I've had this plant growing in my garden for at least 20 years and I love the tiny blue flower. It is invasive but is easily removed from the areas you don't want it to grow because it has a very weak root system. I have mostly shade in my yard so this tiny bright blue flower is welcome in mid-summer and especially in the fall when most everything else is beginning to fade. It likes to grow around other plants because the stems need support. This every-day fresh blue flower is a delight to the eye. I have a total organic yard, I use no herbicides or pesticides and have designed my gardens to be on the wild side that's why I let the Asiatic Dayflower grow here.


On Aug 8, 2011, mikepallies from Bowlus, MN wrote:

These lush little plants will grow and spread abundantly anywhere but are very easily pulled out where not wanted. They work nice to shade the bases of larger plants like lilies. I have isolated ones with white and green striped leaves that look nice even when not blooming.


On Jul 6, 2011, smurfwv from Cabin Creek, WV (Zone 6a) wrote:

Noxious weeds, very hard to get rid of. Roundup won't even kill them all. Do not leave them in a flower bed, they produce seeds like crazy and spread everywhere.


On Nov 10, 2010, hikinmike from Pensacola, FL wrote:

As the saying goes, "A weed is simply a plant that is growing where you don't want it." I find these flowers in the lawn of a house we perchased about 2 years ago. I enjoy them.


On Nov 8, 2010, pastapicker from Columbus, OH wrote:

I found this plant growing along a rail-trail and was enticed by the beautiful blue of the flowers. Later, after I identified it, I learned that it is highly invasive not only in home gardens (and I have experienced this for myself, still finding it popping up all over the place 5 years after first pulling it out) but also in the natural environment, crowding out native plants. Invasive plants are such a problem for our environment! We may think that we are "controlling" the pest that we want in our gardens, but in fact it is spreading far beyond our view!

UPDATE 2014: although I have been diligent in pulling this beautiful monster since I last wrote, it still is popping up and has traveled to the other side of the yard. It survived the deep freezes of the past winter ... read more


On Aug 25, 2010, themikeman from Concord, NC (Zone 7a) wrote:

this is an invase pest but i love it's blue color, and I admire its spindly different looking leaves. the vegetative growth starts really early and lets you know that spring is here, and although it spreads like wildire, and it's invasive and hard to tame,and get rid of, it keeps the weeds at bay wherever it grows by crowding them out. it looks really cool around large hundred year old oak trees here in the Southeast where it is exremely humid and the moss on these big old trees as well looks really cool in contrast with these when these tiny little blue with yellow dot flowers bloom in the mid summer and then again here in NC in the fall as a wild groundcover at the base of these old trees or around an old plantation house porch. zthis plant just really grows on you.. mike.


On Nov 5, 2009, sembrown from Clearwater, FL wrote:

I find the blue pigment to be very stable and long-lasting. I collected many petals into a small container of rubbing alcohol and have used it like water-color. The pigment turns green when an alkali (like baking soda) is added.


On Jul 7, 2009, napdognewfie from Cumberland, MD (Zone 6a) wrote:

My great aunt grew these around her shady porch & gave me a few cuttings 40 years ago. It hasn't been too bad, I just pull up the volunteers that come up where I don't want them. Pretty easy to pull when they are small. I love the pretty little blue flowers. When it is finished blooming, I pull all the plants (not much to look at without flowers) & they come back again the next year.


On Dec 28, 2008, DMgardener from (Daniel) Mount Orab, OH (Zone 6b) wrote:

This plant is gorgeous in early to mid Summer! It does not spead as much as you would think after reading some of these notes on this plant. The flowers only last from 10:00-1:00 in the height of bloom. They are the most pleasing shade of Blue ing my Gardens!


On Nov 30, 2008, PlantGirl1982 from Cedar Rapids, IA (Zone 5a) wrote:

Pretty in bloom, yes, ugly plant, yes. But just start in spring and pull an it won't really be all that bad.


On Aug 23, 2008, dmj1218 from west Houston, TX (Zone 9a) wrote:

Invasive as they get--one of my biggest pests!


On Dec 17, 2007, juanwillis from Winchester, MA (Zone 6a) wrote:

As others have noted, it's quite invasive here in Massachusetts, especially in moister areas. Admittedly the flowers are quite pretty, but the plant grows gangly later in summer and crowds out all competition.


On Oct 6, 2007, WaterCan2 from Eastern Long Island, NY (Zone 7a) wrote:

I just found out what this was after having it around for a couple of years. I really don't have a problem with them as I find I can eradicate them just by pulling them out of the areas I want to clear. My soil is very sandy, maybe that helps. They have the truest blue flower, which is probably their only saving grace combined with the fact they attract pollinators and song birds. They can however multiply faster than rabbits and have to be kept in check. I keep them around in areas I am not working on...better than having something else take over which is harder to get rid of!


On Sep 27, 2007, distantkin from Saint Cloud, MN (Zone 4b) wrote:

I am shocked anyone would want this near their yard-it is a very invasive weed at my house....every time I pull it-it comes back double! You can have all you want-just e-mail me!


On Apr 22, 2007, rwielgosz from Washington, DC (Zone 6b) wrote:

This is a very tough and very fast-growing annual with prodigious self-seeding ability. When it gets tall enough that its weight starts tipping it over, it puts down roots from the stem to help it spread sideways.

It grows in full shade and full sun. It can handle flood and drought. It makes a great groundcover, especially in shady areas. It has brilliant blue flowers with a touch of yellow in the center.

Although it can become invasive over a single season, it dies off every winter. It also has a shallow root system. With consistent weeding you can control it, if not eliminate it. The seeds can apparently lie dormant for years, if not decades. When I pulled up the landscaping fabric that had covered most of my yard for years, the next spring every s... read more


On Jun 20, 2006, joegee from Bucyrus, OH (Zone 6a) wrote:

I finally have a name for this little beastie. I called it Hitler-weed because it invaded everything around it. I'll be pulling this til the day I die. Once established just try to get rid of it. I dare you. This plant was running rampant through my garden when I bought my home. Little did I know after pulling sixty pounds of it (two 55 gallon trash cans) that it would gleefully reappear en masse the following spring. It took Roundup in stride. Does anyone know where I could find some left-over agent orange?

The flowers are pretty, if tiny, and the foliage is nice until summer heat shrivels the leaves and makes the stems leggy, but at least in my area, with temperate climate, modest rains, and average soils this is a plant for garden masochists or enemies. Toss a h... read more


On Mar 7, 2006, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:

This plant is a superweed, much like the weed oxalis, which will grow anywhere except standing water. Asiatic day flower will grows even in dry shade and dry sunny location, of course, in a smaller form that is slightly less invasive at maybe three to four inches in height. In rich soil with a bit of shade (for me), Asiatic day flower flowers more readiable and grows from one to three feet tall. ( I had a wire fence nearby, so that account for the three feet tall plants). The day flowers are a pain to remove because they can become entangled in my daylilies and the fence, making it difficult to remove all parts of them. They even thrive in my sandy soil! It's a pity no one have developed a clumpy sterile form of this as rich blue flowers are a rarity. I suspect their seeds have a long dorm... read more


On Feb 7, 2006, raisedbedbob from Walkerton, VA (Zone 7a) wrote:

Known here a Asiatic Dayflower, it is extremely invasive; but at least it is edible. The young leaves and stems can be added to salads or boiled for 10 minutes and served with butter.


On Jul 31, 2005, gregr18 from Bridgewater, MA (Zone 6b) wrote:

The genus name of this plant was actually named after three members of the Commelin family. As indicated in the definition provided above in the genus info, it was named for Jan and Kaspar Commelin. However, Linnaeus named this particular genus Commelinas for three members of this Dutch family. The flower of a related species, Commelina erecta, has three petals, two conspicuous blue ones, and one small white one. The two blue petals are meant to represent Jan and Kaspar Commelin, both prominent botanists. The smaller white (blue in the case of C. communis) petal represents another Commelin botanist who died before he was able to contribute anything of import to botany.


On Jun 10, 2005, Gindee77 from Hampton, IL (Zone 5a) wrote:

The blue flowers on this weed are pretty but it's so invasive and healthy, it ends up spreading everywhere. I thought it was pretty one year so let it go, that was a big mistake! Now I fight it all the time. One good thing about it is that it pulls very easily. Just don't leave the plants you pull lying around, they will start to grow again!


On May 26, 2005, DawnRain from Bartow, FL wrote:

There are several very like flowers of this species. There is one rather rare form that has 3 petals. There is also a 2 petaled species that has much larger blooms than the more common tiny one. Both of those once grew here on taller more upright plants. I assume mowing may have caused their demise. This was once all pastureland when they were plentiful.

The plant with the tiny blooms still lives and invades the garden wherever possible. I have collected 2 plants into pots and found they are perennial. They are in their 4th year in the pots. I love the blue color. If only I had known the larger plants could be lost I would have collected them to preserve.


On May 25, 2005, MotherNature4 from Bartow, FL (Zone 9a) wrote:

I believe the 2 photos posted by noxiousweed on this page may be incorrect.
According to my information the genus Commelina has unequal petals (one distinctly smaller and often different colored than the other 2).


On Jun 15, 2004, gardenwife from Newark, OH (Zone 5b) wrote:

I know it's invasive, but I love the electric blue flowers. It's not been hard to control; since it's shallow rooted, I just pull out clumps when I want to stem its spread.


On May 25, 2004, Mr_FernGulley from Onalaska, WI wrote:

I live in Wisconsin. I first found this plant growing at my grandmother's farm when i was about 4yrs old. My grandmother couldn't remember anything about it at the time. Well last summer i brought some iris's home and incedentally brought a little bit of it home too. At first we pulled it out, but it always came back. Now this year it has covered an area of about 8 square feet in 1 season. I find it a very attrative plant and very good ground cover if you dont like pulling weeds. Of course if you dont keep the DayFlower itself in check it will kill off other small plants such as Lily of the Valley.


On Jan 1, 2004, duliticola from Longfield, Kent,
United Kingdom (Zone 8b) wrote:

I found this plant growing wild in Cuba, and found it grows easily from seed, flowering in a few months. It is very pretty in flower, having a pure blue colour not often seen in flowers and looking like tiny butterflies.
Downside? --- The flowers only last in perfection for about an hour! If anyone has any clones which last longer (even a full day) it would make a more desirable plant.
It grows easily in a small pot or open ground, any soil.
Easily controllable outside here in UK.


On Nov 18, 2003, VeganGurl20 from Tulsa, OK wrote:

This plant grows along our fence, and makes a very attractive border for the yard, and the flowers are small, but very bright and pretty. It has stayed restricted to the fence line, and we have never had any problems with it. I enjoy this plant.


On Nov 14, 2003, PurplePansies from Deal, NJ (Zone 7a) wrote:

Though blossoms are quite blue, they are very tiny. Of course as stated they last only a day. Plant is pretty invasive, although true blue, because of invasiveness and size of the flower I wouldn't recommend this as a garden plant...........


On Apr 18, 2003, PaulRobinson from Torrance, CA wrote:

Asiatic Dayflower appeared spontaneously in my yard in Los Angeles, California, USA some years ago. While it is certainly invasive, I have found it simple to control, and I truly enjoy the lovely electric blue flowers on that lush green background. It grows with two other "weeds", yellow and red wood sorrel, along with fern beneath a 40 year old Sequoia, I derive as much pleasure from it as from my "formal" roses, etc.


On Mar 14, 2003, Kelli from L.A. (Canoga Park), CA (Zone 10a) wrote:

I kept pulling it out before it would bloom and go to seed and it kept coming back. The blue is a nice color and uncommon in flowers, though. That helps me live with it, as getting rid of it was just an exercise in futility.


On Mar 13, 2003, Karenn from Mount Prospect, IL (Zone 5a) wrote:

Several years ago I received this plant as a "bonus" within the pot of another end-of-season purchased perennial. This is VERY invasive, even in my USDA Zone 5a garden. If it's anywhere near moist soil conditions, it is a very aggressive stoloniferous plant. It took 2 years of aggressive "weeding" to get rid of (almost) all of it. I expect I will once again find some with this spring growing season.


On Dec 15, 2002, ideboda from T-village ;) - Friesland,
Netherlands (Zone 6a) wrote:

It's just a subtropical weed, but it has very attractive blue flowers; the picture Vince submitted on 12/14/2002 has the real colour, but it's so much smaller in reality. The flowers last only a day, and afterwards each fruit contains 1 or 2 brown seeds, oblong and dented all-over, about 2-3 mm long.

I found the plant in the garden of hotel "Neptun" in Dubrovnik (Croatia) in 1983. No idea if the hotel survived the war in the 90's, but I suppose the plant did. It grew among Oleanders and other subtropical garden plants, creeping on the ground, an unsignificant weed. But these truly blue flowers drew my attention, I took a cutting home, and grew it for years in my garden in the Netherlands. I suppose it was an annual, but it sowed itself. It thrived at first, but after a few ... read more


On Aug 4, 2001, Terry from Murfreesboro, TN (Zone 7a) wrote:

Although this plant is closely related to its more well-behaved cousins the Tradescantia (Spiderwort) plants, it is considered an invasive weed by most gardeners, with few redeeming qualities. Its blue flowers are arguably this plant's best feature, but are small unless viewed upclose.

As its common name suggests, the plant was introduced in Asia, and the flowers last but a day. However, repeat blooms keep it blooming for many weeks in mid-summer.

Grow with extreme caution, as it will quickly spread in a cultivated setting.