LINKS

Shrubs (Non Acid Loving)

  1. Per 100 square feet of area, broadcast under and beyond spread of branches when growth starts in spring or earlier, 1 1/2 lbs. (3 cups) of 13-13-13 or equivalent type of fertilizer, preferably containing a slow release nitrogen source. Water immediately, being sure to rinse dust and granules off foliage. Repeat application in For mature shrubs with adequate growth and color, use half the amount and apply only once per year. Test soil again next autumn.
  2. Per 100 square feet of area, broadcast under and beyond spread of branches when growth starts in spring or earlier, 1 1/2 lbs. (3 cups) of 12-6-6 or equivalent type fertilizer, preferably containing a slow release nitrogen source, plus 1 lb. (2 cups) of 0-46-0, superphosphate or similar. Water immediately, being sure to rinse dust and granules off foliage. Repeat application in June. For mature shrubs with adequate growth and color, use half this amount and apply only once per year. Test soil again next autumn.
  3. Per 100 square feet of area, broadcast under and beyond spread of branches when growth starts in spring or earlier, 1/2 lb. (1 cup) of 34-0-0, ammonium nitrate or similar plus 1 lb. (2 cups) 0-46-0, superphosphate or similar. Water immediately, being sure to rinse dust and granules off foliage. Repeat application in June. For mature shrubs with adequate growth and color, use half this amount and apply only once per year. Test soil again next autumn.
  4. Per 100 square feet of area, broadcast under and beyond spread of branches when growth starts in spring or earlier, 1 1/2 lb. (3 cups) of 12-6-6 or equivalent type of fertilizer, preferably containing a slow release nitrogen source. Water immediately, being sure to rinse dust and granules off foliage. Repeat application in June,  For mature shrubs with adequate growth and color use half this amount and apply only once per year. Test soil again next autumn.
  5. Per 100 square feet of area, broadcast under and beyond spread of branches when growth starts in spring or earlier, 1/2 lb. (1 cup) 34-0-0, ammonium nitrate or similar plus 1/2 lb. (1 cup) 0-46-0, superphosphate or similar. Water immediately, being sure to rinse dust and granules off foliage. Repeat this application in June. For mature shrubs with adequate growth and color, use half this amount and apply only once per year. Test soil again next autumn.
  6. Per 100 square feet of area, broadcast under and beyond spread of branches when growth starts in spring or earlier, 1 lb. (2 cups) 15-0-15 or equivalent type of low or no phosphorus fertilizer. Water immediately, being sure to rinse dust and granules off foliage. Repeat application in June. For mature shrubs with adequate growth and color, use half this amount and apply only once per year. Test soil again next autumn.
  7. Per 100 square feet of area, broadcast under and beyond spread of branches when growth starts in spring or earlier, 1 lb. (2 cups) of 15-0-15 or equivalent type of low or no phosphorus fertilizer. Water immediately, being sure to rinse dust and granules off foliage. Repeat this procedure in June using 1 1/2 lbs. (3 cups) of 12-6-6 or equivalent per 100 square feet, preferably containing a slow release nitrogen source. For mature shrubs with adequate growth and color, use half this amount and apply only once per year. Test soil again next autumn.
  8. Per 100 square feet of area, broadcast under and beyond spread of branches when growth starts in spring or earlier, 1/2 lb. (1 cup or less) of 34-0-0, ammonium nitrate or similar. Water immediately, being sure to rinse dust and granules off foliage. Repeat application in June. For mature shrubs with adequate growth and color, use half this amount and apply only once per year. Test soil in 2-3 years in autumn.
  9. If soil pH is above 6.5, apply to the following plants two-tenth (0.2) pound of elemental sulfur per 100 square feet (for medium-textured, silt-loam soils) for each one-tenth (1/10) unit the pH is above 6.5: Hollies, Laurels, Aucuba, Nandina, Mohonia, Viburnum. Use 1/3 more sulfur for fine-textured (clay) soils or 1/3 less sulfur for course-textured (sandy) soils than the amount used for medium-textured (silt-loam) soils.
  10. [Note 10 is used only when the magnesium test indicates a need for magnesium] If lime is recommended, use dolomitic limestone. Where lime is not needed, use one-fourth cup Epsom Salts (magnesium sulfate) per 100 square feet.