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topicquestion
Native vs. invasive photosynthesis and CO2 exchange.
June 27, 2008
My group is conducting an experiment on invasive and native plants in Valdosta, Georgia. Are invasive plant species better adapted to live in Valdosta than native plant species? How do invasive specie...
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Non-branching mimosa tree
June 26, 2008
I have a Mimosa Tree, just about 2 years old, grown from seed. The problem with it is that it has not branched out, it looks like one long branch growing out of the ground, about 5 feet if stood strai...
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Non-blooming wisteria in Oklahoma
June 24, 2008
I have a wisteria bush that doesn't bloom. It's two years old. What should I do?
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Evergreen hedge for constant rain
June 24, 2008
We live in Washington State up north by Canadian border. We need a hedge that will survive the constant rain. We have tried cedar. They seem to turn brown and die,one at a time so we keep replacing th...
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Taproot tree to replace willows by pool
June 23, 2008
Installing Pool with bomanite decking all around it. We're in process of cutting down 18 year old Weeping Willow due to root invasiveness and small messy leaves. Can you recommend a good shade tree w...
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Invasiveness of wild petunia in Austin
June 15, 2008
Is the wild petunia in the data base as invasive/aggressive as the more common ruellia? In other words, will it pop up everywhere? Ruellia nudiflora (Engelm. & Gray) Urban Common wild petunia, Vi...
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Growing bluebonnets in England
June 08, 2008
I'm sending some bluebonnet seeds to Norwich England to a dear friend. What time of year should she plant them?
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Elimination of nutgrass
May 06, 2008
Nutgrass has taken over my vegetable and perennial garden to the point that I can not see my plants or granite sand paths. The two major areas are about 600 square feet in total. What can I do to co...
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Brown, dry leaves on weeping willow tree
May 01, 2008
We live in central TX and have just planted a weeping willow tree. Our back yard has a retention pond and ravine that parallels our property and we were told that the weeping willow will do perfectly ...
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Do Salvia coccinea and Salvia occidentalis occur in Hawaii
April 27, 2008
Aloha, Would you please happen to know if the salvia occidentalis and the salvia coccinea are growing in a wild state in Hawaii, the quantity (small or large areas? What are the weather conditions ...
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Use of chemicals for eradicating invasive plants
April 24, 2008
Re: Round Up We are extremely reluctant to use any chemical agents in our yard (or around our home) due to environmental & ecological reasons... However, we are becoming inundated with several ver...
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Native plants for southwest exposure in Tulsa OK
April 24, 2008
I want to plant something in a bed on the South side of my house with some Western exposure. The space is in a bed that would share space with a Red Tip Photinia (next to the house)& liriope( on the ...
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Organic means for ridding garden of stinging ants
April 18, 2008
Dear Mr. Smarty Pants, I have a butterfly garden that is filled with native plants the butterflies LOVE! However I have a colony of red ants that have moved in. I need to trim some of the more inva...
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Use of kudzu in landscaping
April 11, 2008
HELLO MR.SMARTY PlANTS,my question is , I need a # of kudzu plants to grow quickly for a huge bare back wall since we are selling our house & have zero anything back there.we are getting comments that...
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Information about empress tree (Paulownia tomentosa)
March 07, 2008
I have an Empress Tree, 3 yrs old, and the limbs grow straight out from the trunk about 2-3ft and then grow straight upward. When do they start to grow outward for a canopy??
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Name of the rough-barked mimosa (Albizia kalkora)
February 12, 2008
I read two years ago that there was two different mimosa trees one that is common and has the smooth bark and the other one had a rough bark. I am Interested in the one who has the rough bark and the ...
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How to eradicate chameleon plant (Houttuynia cordata)
February 10, 2008
How do I get rid of a invasive ground covering plant called Camelion without hurting the ground so I can plant something else?
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Identification of lantanas safe for use in Florida
February 10, 2008
Why do you list lantana camara as a native to the U.S. and as a native plant in Florida? It is a category one invasive exotic on the Florida Exotic Pest Plant Council's list of invasive exotics. La...
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Official list of invasive plants in Texas.
January 25, 2008
Is there an "official" invasive / noxious weed list for Texas? I have found several lists, but I wanted to know if there was one truly accepted list for Texas. If not, what would be the #1 list yo...
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Viability of Ehretia anacua tree for Austin, TX
January 17, 2008
I live in Austin, TX and I see you've recommended the Ehretia anacua tree for someone living here. Also, my arborist mentioned it as a replacement for non-native, invasive trees. However, the databas...
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Control of English ivy
November 27, 2007
I need to know if there is a way to kill, or contain, English Ivy that was planted as groundcover next door. Despite my discouragement, my next door neighbor planted English Ivy as groundcover all alo...
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How to get rid of devils club (Oplopanax horridus)
November 22, 2007
please tell me how to get rid of devils club!!!
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Control of King Ranch Bluestem (Bothriochloa ischaemum)
November 21, 2007
What is the best way to get rid of King Ranch Grass (an invasive plant) on my half acre property? I felt like mowing just encouraged more seed heads to pop up.
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Removal of mature agaves
November 20, 2007
Hello- we live in Austin, TX and have a bed of different varieties of agave. They are near the walkway to our house, and are so out of control they pose a hazard to our guests walking up to the house...
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Help for restoring landscape to indigenous native plants
November 05, 2007
I have inherited some acres in Robertson County (Texas) which is about 40 miles north of Bryan/College Station. I would like to restore the landscape to the indigenous native plants without just lett...
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Destroying seeds of Chinaberry tree
October 23, 2007
I have a "chinaberry" tree in my yard, and while I understand that it is an invasive plant to Texas, I was hoping to save the large mature tree. As an effort to be more responsible I have been coll...
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Landscaping in the Southern California desert.
October 16, 2007
We are located in southern California in Lake Havasu. I'm trying to landscape sloping areas. I have arrow weeds (Pluchea sericea) and want to get rid of them permanently. How can I achieve this or...
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Chinaberry trees coming up volunteer
October 14, 2007
I have several chinaberry trees that have sprouted after my neighbor trimmed his tree. I have cut these trees down to the ground a couple of times, but they just send out new shoots. Any idea on how...
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Elimination of nutgrass from native flower bed
October 14, 2007
Nutgrass!*#!* My new bed in NE Austin wraps around a hot sunny SW street corner. Grass wouldn't grow there [I wouldn't water it.] I removed the turf [mostly stickers] to a depth of about 4", carefu...
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Controlling invasives and using natives in New Hampshire
October 09, 2007
What ideas would you have for marrying the subjects of native plants and invasives? This summer I volunteered to work with our town planner and recycling director on a new initiative called SNIP-IT!: ...
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Removing St. Augustine, replacing with native plants
October 06, 2007
Hello Mr. Smarty Plants, always excited to talk to the Green Guru himself. I've recently purchased a house in South Austin and am interested in establishing a small, 500+ sq ft, prairie grass and wi...
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Possibility of camas being raised in Edmonton, Alberta
September 18, 2007
I live in Edmonton, Alberta, and wish to find out how "Camassia (leichtlinii white) will fare in this zone.
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Flashing barrier to Bermuda in tree bed
September 16, 2007
I'm building a 6-ft-diameter planting bed on a gentle slope on blackland clay, at the center of which I plan to install a cedar elm. I'm using the wedge-shaped stones from the home-improvement stor...
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Removal of invasive non-native Chinese wisteria
September 10, 2007
I am going to be removing my ubiquitous chinese wisteria very soon (the method I'm going to use is undetermined). If I decide to use Round-up on the cut-stem (which may take more than one application...
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Native alternatives for Chinest pistache
September 06, 2007
We live just outside Kerrville on a lot with shallow soil over rock. We have built a raised bed for a shade tree and were considering a Chinese Pistache. However, I have since heard that they don't...
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Oxalis crassipes identification
July 23, 2007
I'm trying to identify a plant that has appeared in several containers on my balcony. The largest plant is about a foot tall, with triangular leaves, small white flowers with yellow centers, and has...
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Fast growing, possibly invasive trees for South Carolina
July 12, 2007
What fast growing trees would you suggest for South Carolina? We are heavy clay and the pecan trees we planted don't see to be too happy here. We are looking at the yellow poplar and the empress tre...
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Maintenance of Blue grama in early stages
July 06, 2007
I am seeding my large back yard with blue grama - 30-45 minutes of almost daily hand weeding for two months keeps me from falling too far behind on the green foxtail, bindweed, elm tree seedlings, pig...
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Percentage of plants native to U.S.
June 22, 2007
About 50% of the plant species in Hawaii are naturalized, invasive, aliens (from other places). What are equivalent statistics for the lower 48 states (continental US) as a whole?
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Privacy plantings to replace invasive bamboo
June 22, 2007
We are looking for good screening plants for our new house (the houses are very close). We like the way bamboo looks it is tall and narrow for the most part, but we do not want bamboo since it is inv...
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Toxicity and invasiveness of Scarlet Wisteria
May 04, 2007
I recently purchased seeds for Scarlet Wisteria (Chinese rattlebox tree). I spoke to a neighbor about this and she warned me not to plant them as they were poisonous to hummingbirds. Can you clarify...
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Identification and replacement of chinaberry tree (Melia azedarach)
April 24, 2007
I am trying to identify and locate a native tree. We live in Fairview, near Allen, Texas. It is in bloom now. It has fragrant small lavender 5 petal flowers in clusters. They develop into yellow/t...
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Possibility of consuming Rapistrum rugosum
April 21, 2007
Reference: "Bastard Cabbage" (Rapistrum rugosum) Garden section of Austin American-Statesman (April 7, 2007) speaks of this weed. As a child, my parents used to pick, cook and eat this weed at the ...
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Introduced invasive Melia azedarach along Shoal Creek in Austin
April 17, 2007
Along the Shoal Creek Trail in Austin are many flowering trees with sparse clusters of small pink/purple, star-shaped flowers with a dark red center stalk, blooming now in April. They have a fragrance...
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Control of Acacia escaping cultivation in California
March 26, 2007
My backyard has been overrun by acacia shrubs. How and what can I do to permanently rid the area of this weed? I hold an agricultural QAL so I have access to herbicides if there are effective ones a...
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Invasive common giant mustard
March 14, 2007
I have been seeing a lot of a small shrubby plants with yellow flowers all over Austin, mainly along roadsides. Back in my day the first wildflowers of Spring were the paintbrushes and the bluebonnets...
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Avoiding planting Indian Paintbrush in Hawaii because of invasiveness
March 01, 2007
My daughter is living in Hilo, Hawaii. For her birthday, her boyfriend ordered her some Indian Paintbrush seeds. Trying to be sure she grows them correctly in a pot, she found instructions that say ...
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Control methods for Cenchrus spinifex, Coastal sandbur
September 22, 2006
I have some of the nicest, thickest, greenest grassburs in the county of Erath. What is the best and quickest way to get rid of them? I have heard of a product called cornmeal gluten. Any info appreci...
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Lists of edible plants in region of Pennsylvania for school project
September 12, 2006
Please Help! I'm a grade four teacher in Philadelphia. My students and I are assigned a theme project that involves listing edible plants that grow in our region. Can you recommend a web site(s)...
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Management practices to eradicate Johnson grass
September 02, 2006
Please suggest some eradication methods for Johnson grass. It is established in a field that I want to encourage native wildflowers/plants such as goldenrod, prairie coneflower, blue eyed grass, milkw...
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Control of Roosevelt weed in Hays County, TX
August 29, 2006
Roosevelt weed is rapidly taking over the ranchette which we have purchased in Hays County. Any suggestions for reducing or eliminating its presence will be appreciated. Thanks.
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Disposal of bulbs to control Arrowhead aquatic plant
August 29, 2006
How can I kill Arrowhead permanently? I have sprayed repeated years with Roundup, Crossbow, etc., but the arrowhead comes back from the bulb the next year!
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Invasive definition kalanchoe pinnata
June 05, 2006
The plant Kalanchoe pinnata is listed as being invasive. What does that mean? Is it a weed or does it interefere with metropolitan plumbing? (root system)
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Conversion of patch of bermuda grass to native perennial garden in Texas
March 20, 2006
My wife and I want to take a section of our front lawn that is currently in Bermuda grass and plant some native perennials with lots of flowers. The area will be a quarter-circle in a corner of the la...
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Inadvisability of importing plants from one region to another
March 03, 2006
I wonder if you could help me. I want to send my friends some conifer trees from England to Florida USA. I went on the Department of Agriculture site and they recommended your site for questions. Than...
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About Salvia superba
January 09, 2006
About 10 years ago, nurseries were offering a small salvia, called salvia superba or meadow sage. A few years later, "May Night" and "Blue Hill" appeared on the market similar to this first sal...
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Smarty Plants on vitex
May 12, 2005
I recently purchased a vitex tree and I don't know anything about it other that it blooms. Can you tell me everything there is about this tree?
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Methods of controlling poison ivy
April 19, 2005
What do you suggest for controlling poison oak (ivy)?
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Where is marijuana plant native?
April 03, 2005
In what part of the world is the marijuana plant native?
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Removal of invasive mints
March 30, 2005
How do I remove common mint from my garden? I removed the previous years plants and tilled the soil. This year they came back more than before.
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Science project on invasive plants in American Samoa
September 23, 2004
What is an experiment I can do on invasive plant species for a science project? What are some main invasive plant species found in American Samoa? Where can I go to find more information on invasive ...
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Smarty Plants on Invasive Plants
June 22, 2004
What is an invasive plant?
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Smarty Plants on native plants
March 26, 2004
What is a native species?
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Smarty Plants Exotic Species
March 26, 2004
What is an Exotic Species?
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Smarty Plants Exotic Species
March 26, 2004
What Makes an Exotic Species Invasive? (When is a Guest a Pest?)
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Smarty Plants on Invasive Plants
March 26, 2004
How many plants are invasive?
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Smarty Plants on Invasive Plants
March 26, 2004
How bad are invasive species?
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Smarty Plants on invasive and exotic plant species
March 26, 2004
Where can I go to learn more about invasive and exotic plant species?
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Smarty Plants on Invasive Plants
March 15, 2004
How can I find out if a plant is federally listed as an invasive?
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Information on non-native, invasive pampas grass
February 12, 2004
Our neighborhood is doing a community landscaping project and pampas grass has been suggested. Is there a good article related to invasives that specifically mention pampas grass?
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Definition of a weed
April 22, 2003
What is your definition of a weed?
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topicquestion

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