Using Compost as a Soil Amendment
Compost can be used to enrich garden beds before planting annuals, ground covers, shrubs and trees.
In flower and vegetable beds and ground covers:
- Dig or till base soil to an 8 to 10 inch depth.
- Mix 1 to 4 inches of compost through the entire depth. In established gardens, mix 1 to 3 inches of compost into the top 6 to 10 inches of soil each year before planting.
- Till base soil to a 6 to 12 inch depth.
- Mix 1 to 2 inches of finely textured compost into the loosened base soil.
Around trees and shrubs:
- Dig or till base soil to a minimum 8 to 10 inch depth throughout planting area, or in areas 2 to 5 times the width of the root ball of individual specimens.
- Mix 1 to 4 inches of compost through the entire depth.
- Do not use compost at the bottom of individual planting holes or to fill the holes. Mulch the surface with wood chips or coarse compost.