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dollar weed seeds

Resource for information on phytoremediation
April 27, 2006 – Hello, I’ve been searching for a resource that will tell me which contaminants certain plants are able to absorb (in terms of phytoremediation). Thanks so much – I do hope to hear from you so.
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From: St. Augustine, FL
Region: Southeast
Topic: Seed and Plant Sources
Title: Looking for a source for Dollarweed in St. Augustine FL.
Answered by: Jimmy Mills

Food value of cultivars of eastern red cedar (Juniperus virginiana)
May 21, 2008 – Can you suggest any resources regarding the wildlife value of native plant cultivars? For example, I can only buy an eastern red Cedar cultivar in my region: “Burkii” or “Emerald Sentinel”. I w.
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More Seed and Plant Sources Questions

Who does pecan grafting in Brownsville, TX?
June 29, 2009 – Who does pecan tree grafting in Brownsville TX? I planted a pecan. It is now about 8′ tall, and about 3 years old.
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Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

A previously answered question has some nice things to say about Pennywort, and pondbiz.com has the plants for sale.

Our special skunk strain that has been a hit here in BC for years is now available. The skunky stench that comes from these is unbelievable. The consumers always choose this strain when given a choice, it smells so dank and packs a big punch. Developed for sea of green method whether growing in soil or hydro. Very few days to veg before flipping to flowering (4 days veg), clone plant stretches 12-16inches in first 2 weeks with many tight bud sights in between. High Yield.

A: You need to keep leaves raked off your lawn, even if it means that the grass will go brown in really cold weather as lawns have done over most of Texas this winter. Those somewhat warmer, moist conditions can really lead to disease issues if leaves are left on the grass for prolonged periods. As for the mowing height question, my answer has always been that letting grass grow really tall will lead to weak grass. Blades grow more vertically, and the grass will thin out allowing weeds to move in. The best mowing height for St. Augustine would be between 2 and 2½ inches. You might lean toward the taller end of that in shaded situations like it sounds like you have, but it would probably be best not to mow as high as you’ve been mowing.

Dear Neil: You used a term recently with which I wasn’t familiar. It involved picking up grassbur seeds with a burlap bag filled with “sawdust ballast.” Is that different from just plain sawdust? Is it something I can buy?

A: Perhaps my term was too vague. I was just hinting that you’d need some kind of weight to press the burlap bag down into contact with the soil line where the grassburs would be hanging out. It would be just plain sawdust or wood shavings, or you could probably use dry shredded tree leaves just as well. You could partially fill the burlap bag with bark mulch just as well.

A: Weedkillers that would kill thistles will also kill other wildflowers, so spraying isn’t an option unless you can direct it only onto the thistle foliage as the plants start growing vigorously in a few weeks. Broadleafed weedkillers, however, drift and will probably affect the wildflowers near the thistles. The next best step is to keep them from flowering and going to seed. Before they become tall and obnoxious (and painful!), use a line trimmer to sever them as close to the tops of the wildflower plants as possible. Hopefully you don’t have a thistle seed source that’s nearby. Thistle seeds, as you have observed, are highly mobile on windy days in late spring.

Dear Neil: I have a rubber tree that has grown from 1 foot tall to almost 8 feet tall in just a few years. It will soon touch our ceiling, but it has no branches at all. Can I prune it back to force it to produce branches? If so, when and how?

Dear Neil: We had a really bad outbreak of dollar weed a year ago. I have physically pulled it up, and I tried two rounds of a broadleafed weedkiller that was supposed to eliminate it. It’s just beginning to reappear now in my St. Augustine. What can I do?

A: Two plants are commonly called “dollar weed” in Texas. One is called that in error, actually being dichondra. Dichondra’s leaves are the size of a man’s thumbnail, and they’re kidney-shaped. They are medium green and matte in appearance. The plant itself grows to be only 1 to 1-1/2 inches tall, usually growing beneath the grass blades. True dollar weed, by comparison, has silver-dollar-sized leaves that are ultimately glossy. They are borne on single stems 4 to 5 inches above the soil. Both plants can eventually be eliminated by careful applications of a broadleafed weedkiller spray containing 2,4-D and probably other ingredients. There are several critical issues. Use a pump sprayer that will put out fairly small droplets. Include one drop of liquid dishwashing detergent per gallon of spray to help the spray hold onto the glossy and funnel-shaped leaf surfaces. Do not apply when winds are greater than 5 to 8 mph or when rain is expected within at least 24 hours, preferably 48. Best control will be had when the weed is growing actively, so that’s usually going to be late February through the spring. Beyond all of that, read and follow the specific label directions for best results with the product.