The term “mulch” applies to any material that is spread on top of the soil to retain moisture and discourage weeds. Mulches may be inorganic (gravel based) or organic (plant based).

In most cases, plant-based mulch is best for planting beds. It breaks down naturally and acts as a slow-release fertilizer for the soil. It looks and acts just like the forest floor! 

Popular organic mulches include redwood bark, shredded cedar, and dyed wood (made from shredded pallets). Arbor chips (wood chips made from trees that have been run through a chipper) are ideal. 

Our own Terra Blend mulch is made by mixing clean arbor chips with fresh green clippings from healthy plants. This addition provides a nice shot of nitrogen to the soil as the green material breaks down, leaving the more substantial chips to create a solid layer that lasts longer. It’s like a jump start for your soil.

All organic mulches need to be refreshed every year or so – but once you have a nice layer of mulch in place, you can be sure that the soil beneath it is being constantly improved. Just keep it topped off!