Good Garden Soil


Soil particle sizes
add organic matter.

Examples of Organic Matter.
Many sources of organic matter are directly available in the yard already:

  • Plant trimmings
  • Grass cuttings
  • Shredded fall leaves
  • Household compost (from the compost bin)
  • Aged/composted manure (from farms)

Generally, composted products are safer to use. If non-composted materials are used, such as shredded leaves in the fall, additional nitrogen fertilizer should be added (a light layer of lawn fertilizer added to the shredded leaves is fine). Manure should ideally be composted to avoid burning tender roots, or the soil prepared 6 months in advance of planting. Grass clippings should be composted or spread in a thin layer on top of the soil.

The Process of Amending Soil.
The process is relatively simple:

  • Dig the flower bed to be improved by turning over the top 8-10" of soil (one spade depth).
  • Spread a 3-4" layer of organic matter, such as compost, and mix it thoroughly into the top 10-12" of soil. This result in 30-35% organic matter which is recommended.
  • Plant flowers and shrubs in the amended soil. Water well once to settle the soil around the roots.
  • Every fall, and spring if possible, add another 1-2" of compost to the top of the soil. Organic matter slowly decomposes in soil and adding more every year will ensure the continued improvement of your soil.

Composted forest products and manures are available in one or two cubic feet bags at garden centers. These are also commonly sold as "humus". If you purchase amendments by bulk, retailers usually charge per (cubic) yard. You need approximately 1 cubic yard (27 cubic feet) per 100 sq feet garden area.

Obviously, the best compost you can make at home in your own compost pile, and don't forget to check your local county or city recycling center. In spring many centers offer free compost if you pick it up yourself. Check the phone book.

Sources Used:

  • "Soil Organic Matter", J. Lickacz and D. Penny, Government of Alberta
  • "Soil Biology", Saskatchewan Centre for Soils Research
  • "Garden Soil", Rutherford Garden.
The copyright of the article Good Garden Soil in Home Lawncare is owned by Kenneth Joergensen. Permission to republish Good Garden Soil in print or online must be granted by the author in writing.

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