Available in 1 size
5LB Box
Excellent source of valuable plant nutrients
Greenstone Metabasalt originates from basalt subjected to great heat and pressure over millions of years. Its naturally green color distinguishes it from unaltered basalts and comes from the presence of various minerals that were formed by these metamorphic forces. It is an excellent source of the valuable plant nutrients calcium, magnesium and iron and can be used for fortifying garden soils with these important mineral elements. Greenstone is ideal for direct application to soils or combining with other natural fertilizers, composts and soil amendments.
CALCIUM (Ca) 2.0%
MAGNESIUM (Mg) 4.0%
0.001% Water Soluble Magnesium
IRON (Fe) 4.0%
Derived from:
Basalt
Listed by the Organic Materials Review Institute (OMRI) for use in organic production.
1-1/3 cups ≈ 1 lb; 1 cup ≈ 12 oz; 1 tbsp ≈ 1 oz
Vegetable Gardens & Flower Beds:
To prepare new gardens, apply 5-10 lbs per 100 square feet and thoroughly mix into the top 3″ of garden soil in spring or fall. For new transplants, add 1 Tbsp per hole, mix into soil and water in well.
Trees, Shrubs and Vines
Spread 1-2 lbs per 1″ of trunk diameter around the base outwards to the drip line, mix into soil surface and water in well. For new trees, prepare transplant hole and mix 1-2 lbs with the backfill soil. Use amended soil to fill in around the new tree and water in well.
Containers
For new plantings, add 2 Tbsp per gallon OR ¾ cup per cubic foot of soil and mix thoroughly. Plant into the amended soil or use this soil as needed. For large volumes of soil add 5-10 lbs per cubic yard.
