Jack’s Classic 10-30-20 Blossom Booster
Product details
| Management number | 232250101 | Release Date | 2026/06/21 | List Price | US$6.22 | Model Number | 232250101 | ||
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Jack’s Classic Blossom Booster 10-30-20 Fertilizer is a professional formula designed to produce more flowers and brighter colors on all indoor and outdoor plants. It feeds through the roots and the leaves, giving your flowering plants a double dose of nourishment. This is the Original Blossom Booster with the proven 1:3:2 nutrient ratio of nitrogen, phosphate and potash. It also contains small amounts of magnesium, boron, copper and other essential micronutrients.
The quality of Jack’s Blossom Booster is unmatched in the home gardener market. It’s trusted by many professional growers as a tool to fill out a blooming container. This formula will produce the same great results for you at home. Follow the instructions below to mix the fertilizer in water for small-volume applications or a siphon mixer. (Note it is not for use with injectors.) Order convenient 4-pound tubs or giant 25-pound bags with a Low Price Guarantee.
For best results, apply Jack’s 10-30-20 fertilizer every 7-14 days just like a thorough watering. Use this high-phosphorus formulation during periods of bud set to increase the number and size of blossoms. Blossom Booster is for use on all indoor and outdoor flowering plants like geraniums, impatiens, begonias and marigolds. It’s also great for vegetables and fruit and can be used as a transplant solution. Read the reviews of Jack’s Fertilizers 10-30-20 Blossom Booster to see how our customers have used this formula.
Specifications: Classic Formula
| Total Nitrogen (N)....................................... | 10% | |
| 5% Ammoniacal Nitrogen | ||
| 5% Nitrate Nitrogen | ||
| Available Phosphate (P2O5)....................... | 30% | |
| Soluble Potash (K2O)................................. | 20% | |
| Magnesium (Mg)......................................... | 2.03% | |
| 2.03% Water Soluble Magnesium (Mg) | ||
| Boron (B).................................................... | 0.0068% | |
| Copper (Cu)................................................ | 0.0036% | |
| 0.0036% Chelated Copper (Cu) | ||
| Iron (Fe)...................................................... | 0.0500% | |
| 0.0500% Chelated Iron (Fe) | ||
| Manganese (Mn)......................................... | 0.0250% | |
| 0.0250% Water Soluble Manganese (Mn) | ||
| Molybdenum (Mo)....................................... | 0.0009% | |
| Zinc (Zn)...................................................... | 0.0025% | |
| 0.0025% Chelated Zinc (Zn) | ||
Specifications: Professional Formula
| Total Nitrogen (N)....................................... | 10% | |
| 5% Ammoniacal Nitrogen | ||
| 5% Nitrate Nitrogen | ||
| Available Phosphate (P2O5)....................... | 30% | |
| Soluble Potash (K2O)................................. | 20% | |
| Magnesium (Mg)......................................... | 0.50% | |
| 0.50% Water Soluble Magnesium (Mg) | ||
| Boron (B).................................................... | 0.02% | |
| Copper (Cu)................................................ | 0.05% | |
| 0.05% Chelated Copper (Cu) | ||
| Iron (Fe)...................................................... | 0.10% | |
| 0.10% Chelated Iron (Fe) | ||
| Manganese (Mn)......................................... | 0.05% | |
| 0.05% Water Soluble Manganese (Mn) | ||
| Molybdenum (Mo)....................................... | 0.0009% | |
| Zinc (Zn)...................................................... | 0.05% | |
| 0.05% Chelated Zinc (Zn) | ||
For small volume mixing
Dissolve the following amounts in 1 gallon of water. Injectors should not be used.1/2tsp. = 67.5 ppm
1tsp. = 125 ppm
1tbspn. = 375 ppm
When using a Siphonex or Hoze-on proportioned
| 1:15 Setting | E.C. |
|---|---|
| 100 ppm = 2.0 oz. | 0.98 |
| 200 ppm = 4.0 oz. | 1.96 |
| 300 ppm = 6.0 oz. | 2.94 |
Limit of Solubility in Hot Water = 3.5 lbs. per gallon
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