Native Plants
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Q. Who is Mr. Smarty Plants?
A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.
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Tuesday - May 15, 2012
From: Austin, TX
Region: Southwest
Topic: Invasive Plants, Non-Natives
Title: Invasive plants in native plant area from Austin
Answered by: Barbara Medford
QUESTION:
Why do invasive plants grow in native plant territory?ANSWER:
Actually, some invasives are native, as well. Usually, invasiveness is controlled by the soil, climate or water being wrong for the non-native. However, plants don't necessarily grow where they belong, they grow where they can get away with it. If a non-native plant manages to get seeds in the ground where there are good conditions, it will grow aggressively, shading or crowding out the native plants around it. There is no natural barrier to keep non-natives nor invasives out of a territory previously dominated by native plants.
In the case of Bastard Cabbage, which we are hearing so much about, it is believed the non-native seeds sneaked in as part of an imported grass mix. When the grass seed was put in the ground, probably some of it blew away to contaminate another area right away, and the rest of the seeds grew into plants that quickly grew, flowered and seeded for still more. They grow quickly, are aggressive with long taproots that spread, and very low-growing flowering sprouts that can dodge being mowed. Read the linked article above to learn how that particular non-native invasive got going. The seeds germinate in late Fall and early Winter, and the early rosettes quickly cover the ground, shading out seeds of more desirable native flowers that were there before.
More Invasive Plants Questions
List of North American plants grown in other countries
August 17, 2008 - I am working on a childrens story and would like to let the teachers who read this book know where some of the native plants in my book grow throughout the world, or if they grow outside of the USA. p...
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Removal of non-native invasive Ligustrum japonica from Austin
February 14, 2012 - I bought a house that I am slowly turning into a native garden, but as a teacher, I have a really small budget. One entire border of my backyard (30 feet) was planted with evil Ligustrum japonica. I l...
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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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Controlling Thermopsis rhombifolia (buffalo bean) in Mozambique
May 19, 2009 - Dear Mr. Smarty, Please,can you assist. We have
a plot on a dam in Mozambique. It has been invaded with Thermopsis
rhombifolia (we call it buffalo bean), it is very hardy and if you fall
in it or j...
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Transplanting trumpet creeper in Prairie City, IA
August 22, 2011 - I have a Trumpet Creeper that I would like to transplant. How do you do that?
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