How to Replace a Weed Barrier
Weed barriers prevent weeds from growing in beds and borders in your garden. Usually consisting of black plastic or landscaping fabric, they effectively prevent most weeds from germinating or receiving the light they need if they do manage germination. Plastic mulch is usually used for annual plants or in vegetable beds, as it requires yearly replacement. Landscaping fabric lasts three to five years and is used for perennial beds. When replacing the mulch, do so before replanting annuals or when you are dividing the perennial plants. Does this Spark an idea?
Instructions
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1
Remove any soil or bark mulches from the bed that are on top the weed barrier. Set them aside on a nearby tarp so they can be added once the weed barrier is replaced.
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2
Pull the weed barrier up from the bed. Cut it away from any plants that are not being removed from the bed.
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3
Measure the bed and cut a new length of weed barrier 3 inches larger on all sides than the bed measurement. Drape it over the bed and cut slits large enough to go over any plants that are still in the bed.
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4
Dig a 2-inch-deep trench around the edges of the bed. Push the edges of the weed barrier into the trench, then re-cover with soil. This prevents the barrier from being pulled up from wind or when you work the bed.
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5
Replace any soil or mulch on top the weed barrier. Add fresh soil or organic mulch as necessary to cover the new barrier completely.
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Tips & Warnings
Work soil amendments and fertilizer into the bed before laying a new weed barrier.
Some plants, such as nut grass, penetrate weed barriers. Pull these by hand or use recommended controls to keep them in check.
Cut away excess plastic from the barrier so it isn't against plant stems. The plastic heats up in the sun and may burn tender stems and leaves.