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Specifications at a Glance:
- 5 lb. package
- Broadcast 2-4 lbs per 100 sq ft.
- One application lasts up to 5 years.
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Rock Phosphate for Bigger Blooms
An excellent source of slow-release phosphorus (0-4-0), Black Rock Phosphate also provides calcium, trace elements, and helps neutralize mildly acidic soil.
