Event Date March 9, 2019, 9am-1pm
Sponsored By Ten Rivers Food Web
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History and Updates

The Soil Amendment Sale 2019



Pick-up will be in the parking area behind the First Alternative Natural Foods Co-op, South Store, 1007 SE 3rd St, Corvallis, OR, March 9, 9am-1pm. Please help us thank the co-op for their generous willingness to grant us the space for the sale!


We have expanded our offerings this year to include cover crop seed, a wider range of organic pest controls, an organic seed-starting mix, and smaller-format offerings of some of our most popular amendments.  We are also continuing to offer a selection of poultry and domestic animal supplies that have been added over the past few years.  We encourage our shoppers to share our online store with friends and neighbors who may have need of these products.



History of the Sale

For more than a quarter century the “organic gardening club”, once a chapter of Oregon Tilth, and now a chapter of Ten Rivers Food Web, held what was known  as “the fertilizer sale”. For years the sale happened every weekend in March at the South store of the 1st Alternative Co-op. During that time hundreds of organic gardeners and small farmers from across this part of the valley relied on being able to get amendments at reduced prices, many of which were recommended by Steve Solomon in his first three editions of Growing Vegetables West of the Cascades.


Times change. The Growing Organic Chapter of TRFW shortened the sale to the first Saturday in March a few years ago, and began offering online pre-ordering to make things more manageable.


Steve Solomon’s recommendations changed too, and in 2013 he published The Intelligent Gardener: Growing Nutrient Dense Food. For one thing, he now warns against using dolomite or green sand on most Willamette Valley soils because our soils are naturally high in magnesium and the dolomite aggravates the tight stickiness of our clay soils, compacting them. For most situations, he recommends gypsum. He also recommends that gardeners and farmers soil test, especially when vegetable growing areas have been used for multiple years, to monitor what needs to be added. Nutrient density in our food is his focus, and it's the focus of the TRFW Soil Nutrition Committee.