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Weed Barrier Fabric & Pins

$62.00
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Product Description

25 pieces of 4' x 4' polypropylene geotextile fabric

 

Information Sheet (PDF)

Weed barrier fabric is a woven, polypropylene fabric. Used to enhance survival and growth on tree and shrub plantings, it allows water to penetrate, but does not allow weeds to grow through it, eliminating much of the labor involved in establishing seed-lings. Kansas Forest Service provides the fabric in units of 25 pieces of 4 by 4 feet fabric and 125, 10-inch wire pins to secure the fabric to the ground.

The fabric is guaranteed for five years against deterioration from sun damage. The first sign of deterioration is white to gray spots about 3 to 4 inches in diameter. The next phase is separation of ribbons, usually length-wise on the fabric. Finally it becomes a cigar-ash like material and disappears.

The fabric is very effective at conserving soil moisture, but it does not generate water. If the soil is dry when the seedlings are planted, they should be watered thoroughly. The fabric sheds water until the sun breaks down the silicone used to enhance the weaving process. After about 3 to 4 weeks of exposure to the sun, it allows penetration of 9 gallons of water per square foot per minute.

It is best to till the planting spot to kill existing vegetation and loosen the soil for rapid seedling root development. Plant the seedling and water it thoroughly to settle the soil around the roots and to ensure that there is adequate soil moisture. In all but exceptionally dry years, no supplemental watering is needed after the initial watering at the time of planting.

Pull the seedling through the center opening. Place pins in the four corners and the center of the fabric. The 10-inch pins tend to work out of the soil until they are pitted from soil moisture. They may have to be shoved back into the soil occasionally for a couple of weeks, then they will hold well on loam or clay soils. On lighter soils, a shovel of soil may have to be placed on the corners to secure the fabric. If weeds grow through the seedling hole, pull them out before they become well established.

Weed barrier fabric should not be considered a "plant them and ignore them" practice. Regular inspections are needed to check for such problems as insects, rodents building homes under the fabric, weeds growing through the planting hole, wind lifting the fabric, bark injury due to rubbing fabric, and need of supplemental watering.

Caution: Fast growing plants can fill the center hole before the fabric deteriorates, causing the fabric to girdle the plants. This may result in the death of the tree or shrub. The center hole may have to be enlarged as the plant develops to prevent damage.

(Extra pins can be purchased seperately, if needed.)

Product Reviews

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  1. Good start

    Posted by Patrick Jankowski on 27th Apr 2016

    I weed-eated the grass that would be under the weed mat to the ground then used an 18 inch post auger to make the holes for the trees, some grass grew through the centers but easily removed after the first good rain. When reading the instructions I noticed that the weed mat needs 3-4 weeks of direct sunlight to break down the silicone on the weed mat before water will penetrate it. It's been a little longer than that and the weed mat still sheds water pretty good. Planning on mulching over them in the fall if water will penetrate by then, if not then remove them and reuse on the next planting. The stakes are good, weed mat hasn't blown off in even 40mph winds.

  2. need smaller center. ut

    Posted by bill devlin on 8th Nov 2014

    The center cuts should be 4" instead of 10". You can allow as make it bigger but you can't make it smaller. The large cut lets weeds grow outside tree tube.

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