What is the CSPMA?
Founded in 1988 to promote the benefits of peat moss to horticulturists and home gardeners throughout North America, the Canadian Sphagnum Peat Moss Association is comprised of 18 peat moss producers and marketers representing 95 percent of Canada’s total production.

What is OMRI?
The Organic Materials Review Institute (OMRI) is a national nonprofit organization that determines which input products are allowed for use in organic production and processing. OMRI Listed—or approved—products may be used on operations that are certified organic under the USDA National Organic Program.

What is the Mulch & Soil Council?
Founded in 1972 as the National Bark Producers Association (NBPA), the current Mulch & Soil Council has become the nonprofit trade group of all producers of horticultural mulches, consumer potting soils and commercial growing media.

What is Black Gold’s Controlled Release Fertilizer?
Black Gold All Purpose Potting Soil uses controlled release fertilizer formulations made with the highest quality nutrients. Our homogenous granules are encapsulated in a multilayer polymer coating. The polymer coating controls the release rate, thereby allowing a slow, continuous diffusion of dissolved nutrients to the root zone. As the soil warms up, the release rate increases consistently with the plant’s growth rate and nutrient consumption. The premium NPK formulations have a reliable release profile, which is unaffected by soil type, soil pH, moisture or microbial activity.

Amendment Calculator
Our Amendment Calculator chart can help answer your questions. For the two compressed Peat Moss sizes, the compressed Soil Conditioner and all 1 cf. and larger loose-fill Black Gold® Amendments, the charts below are designed to help you figure out how far each of the packages will go in amending your soil or when they are used as a top dressing.

The National Home Gardening Club is a membership-based organization designed exclusively for active gardeners.  The club welcomes gardeners of all skill levels and its official publication, Gardening How-To serves as the primary source for expert advice, member interaction and gardening knowledge. The club offers its members many opportunities to interact with one another and with experts in the field via the magazine, club website, Extra Dirt weekly e-newsletter and events.

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