Black plastic weed barrier
Rake the area smooth and remove any old mulch, rocks or debris that could poke a hole in your weed barrier.
Apply a 2- to 4-inch layer of organic mulch over the entire surface of the black plastic weed barrier. Spread the mulch over the edges of the weed barrier so the black plastic doesn’t show.
Weeds are the enemy of gardeners around the country. These pesky plants decrease the beauty of your yard and rob vital moisture and nutrients from your flowers, vegetables and lawn. Mulch helps minimize weeds but also retains more moisture and helps moderate the temperature of your soil. The trick to keeping weeds from growing through your mulch is to put a layer of weed barrier underneath.
Things You Will Need
Cut small “X” shapes into the weed barrier if you want to plant new plants in the area before laying the mulch. Dig a hole in each “X” shape and place one plant inside each hole.
Use several layers of old newspaper in place of black plastic weed barrier if you want a more environmentally friendly way to reduce weed growth through your mulch. Lay the newspaper down and cover with a 2- to 4-inch layer of organic mulch. You’ll have to replace the newspaper and mulch more often, however, because the newspaper will biodegrade over time. Fabric weed barriers are another option, though they aren’t always as effective as plastic in preventing weeds from growing.
Pull up any weeds that are already growing in the area you want to mulch. Use a trowel to help you remove the roots of the weeds, which will decrease how many try to grow back.
Overlap the strips of black plastic weed barrier so weeds can’t sneak their way through the edges of the material.
Spread a layer of black plastic weed barrier over the planting area. If you already have plants growing in the area, cut holes in the black plastic to fit over them.
Killing weeds in a mulch beds is slightly different from doing the same in a larger area such as a garden for example. It’s both easier and harder at the same time given the smaller size and delicate nature of the bed respectively.
How to kill weeds in mulch beds
The best way to get rid of weeds in mulch beds is to treat the soil with a pre-emergent herbicide first before mulching. This will prevent weeds from growing through the mulch. For existing weeds, cover them with landscaping fabric, uproot or kill them with organic herbicides.
Do weeds grow through mulch?
Weeds tend to grow just about anywhere there’s enough material to support their root system. That’s including in your mulch beds and flower beds. Some weeds can grow through mulch and become problematic to control. So, how can you get rid of weeds in mulch beds?