Key To Life Key to Silica Powder Works Dry, Not in the Tank
Key To Life Key to Silica Powder is an amendment you work into the medium, not a bottle you pour into a reservoir. The guaranteed analysis runs 6.26% silicon dioxide derived from zeolite. The balance is declared as 93.74% other ingredients. That zeolite carrier is the reason it behaves like a soil amendment rather than a solution. Silicon that reaches the plant deposits into cell walls and stays there. Stems thicken. Leaf surfaces get harder for mites and mildew to break through. It builds slowly, and that is the part growers underestimate. Start it in early veg and you notice it in week six of flower. The colas are heavy and the branches are still holding them up.
Label Rates for Silica Powder for Plants, Top-Dress Through Foliar
The rates are small and they come straight off the label. Top-dress at half a teaspoon to one teaspoon per gallon of soil. A root drench uses that same range per gallon of water. Foliar drops to half a teaspoon per gallon, rising to a full teaspoon when powdery mildew is the reason you are spraying. Key To Life marks hydro and aero as N/A on their own application chart, and that is worth respecting. Zeolite does not fully dissolve. It settles in a reservoir and it will find your emitters. Most soil and coco growers top-dress at transplant, again at the flip, and hold the foliar rate in reserve for humid weeks. A recirculating room wants a liquid silicate instead of this powder.
Key Features
- 6.26% Silicon Dioxide (SiO2): Zeolite-derived silicon in a dry carrier, declared on the guaranteed analysis rather than implied.
- Top-dress and root drench at 1/2-1 tsp per gallon: One rate covers both application methods, so a top-dress week and a drench week use the same scoop.
- Foliar at 1/2 tsp per gallon, 1 tsp for powdery mildew: The higher spray rate is the label's own answer for humid rooms, not an improvised double dose.
- No pH swing to correct: Unlike alkaline potassium silicate liquids, a dry zeolite amendment does not push reservoir pH up before you feed.
- Four sizes from 8 oz to 20 lbs: The same powder scales from a two-tent room to a production floor with no formula change between sizes.
Technical Specifications
| Specification | Value |
|---|---|
| Guaranteed Analysis | 6.26% Silicon Dioxide (SiO2) |
| Derived From | Zeolite |
| Other Ingredients | 93.74% |
| Format | Dry powder |
| Soil / Top-Dress Rate | 1/2 - 1 tsp per gallon of soil |
| Root Drench Rate | 1/2 - 1 tsp per gallon of water |
| Foliar Rate | 1/2 tsp per gallon (1 tsp for powdery mildew) |
| Hydroponic / Aeroponic Use | Not rated by the manufacturer |
| Growth Stages | Vegetative through flower |
| Available Sizes | 8 oz, 32 oz, 4 lbs, 20 lbs |