What to do with grindings
After a tree stump has been ground to small chips by a stump grinder, you will be amazed at the big pile of shredded stump you will be left with. Since leaving the grinding out in the open will do nothing for the beauty of your garden, why not put it to good use.
One of the ways to use stump grindings is to use it as mulch. But before you use it for mulching, you need to make sure that the tree from which the grinding came from is not disease infested. Once this has been ascertained, you can proceed to use the grindings for making mulch. First remove as much grindings as you can from the location where the tree has been felled and transport it to another area of the garden. Spread the wood chips in a 1 inch layer over the soil. For best results add the stump shavings to flower beds and rake it into the soil. This gives the grindings a chance to decompose and it increases the nutrient in the soil. Be careful while using stump grindings as mulch from pine trees. Too much of it can increase the acidity of the soil. This will make it difficult for any plant to grow.
Use for Compost
Instead of taking small amount of stump grindings and mixing it with the soil around the garden plants and bushes as mulch, it would be easier to make a compost and use it in as a natural fertilizer. Use a small plastic drum or container to compost the stump shavings. Add other organic waste from your kitchen like vegetable and fruit peels as well as waste from the garden. Make sure to stir the pile of compost frequently so that the stump grindings decompose quickly. Once the stump grindings have decomposed, you can use it to enrich the soil in your flowerbeds and other areas of the garden. You need to decompose the stump shavings for 3-4 months before you use them in your garden as fertilizer.