Kelp Meal 5lb.
QUESTIONS & ANSWERS
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can I use kelp meal to fertilize my spruce and piñon pine trees?
Kelp alone would not be a complete fertilizer for those trees, but it could be included with other amendments to feed those types of trees.
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rate of application
Application rates vary with your situation. For outdoor vegetable garden beds the typicAL use rate is 1lb to 2lb per 100 square feet. For potted plants it is 1 to 2 tablespoons per gallon of soil.