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Derived from:
Gypsum and Elemental Sulfur
APPLICATION RATES
Apply Garden Sulfur in the spring and summer to lower soil pH. Most acid loving plants prefer a soil pH between 4.5 and 6.5. Performing a complete soil analysis (with lab recommendations) or using a soil pH home test kit before application is encouraged. If you do not know your soil pH, use the recommended application rates below:
Berries and Hydrangeas:
To prepare new gardens, apply 5-10 lbs per 50 square feet of planting area depending on soil pH desired. Incorporate into soil or cover with fresh soil, compost or mulch and water in well.
To feed established plants, apply 1 cup per plant in early spring, mix into soil surface or cover with fresh soil, compost or mulch and water in well. To encourage blue flowers on hydrangeas, soil pH must be 5.5 or lower. Test and apply seasonally as needed.
Vegetable Gardens & Flower Beds:
To prepare new gardens, apply 5 lbs per 50 square feet for each point of pH reduction required. Evenly distribute over soil surface by hand or spreader. Incorporate into the soil or cover with new soil, compost or mulch. For soil pH maintenance, test and apply seasonally as needed.
Trees, Shrubs and Vines:
For new plants or transplants, prepare planting hole and mix 1 cup with the backfill soil. Use amended soil to fill in around the new plant and water in well.
For established plants, apply 1 cup Garden Sulfur per 1 inch of trunk diameter evenly to soil outwards towards the drip line. Cover with fresh soil, compost or mulch and water in well. For soil pH maintenance, test and apply seasonally as needed.
