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Humboldt Countys Own Gravity is a uniquely prepared kelp extract and phosphorus based additive will harden your flowers from the top to the bottom. A little goes a long way. Use once or twice about 3 weeks before the end of a plants cycle. Adds size and weight to flowering plants.
| Size | 8 oz. |
| Usage | Additive/Supplement |
| N-P-K | 0-0.1-0 |
| Certified Organic | No |