Harris Seeds Plastic Mulch

Black plastic mulch absorbs sunlight, which warms the soil beneath it more quickly than exposed ground. This increased soil temperature encourages faster root development and earlier plant maturity, often leading to a harvest that arrives sooner than it would in unmulched soil.

Yes, it acts as a physical barrier that blocks sunlight from reaching weed seeds, effectively preventing them from germinating. This significantly reduces the need for manual weeding and cultivation throughout the growing season.

At 1.0 mil thickness, this mulch is designed primarily as a single-season product. While it is durable enough to withstand a full growing season, it is thin enough to be easily removed and disposed of once your harvest is complete.

The plastic itself is a solid barrier, so water will not pass through the material. To ensure your plants get enough hydration, you should install drip irrigation lines underneath the plastic before laying it down, or water directly at the base of each plant through the holes you cut for them.

This mulch works perfectly in both raised beds and traditional in-ground gardens. Just ensure you secure the edges firmly with landscape staples or soil to keep it in place, especially in raised beds where wind might catch the edges.