Bloom 1-Part Powder

Bloom 1-Part Powder2019-03-22T09:21:41+00:00

Bloom 5-13-28™

Ultra premium, extremely soluble, broad spectrum, one-part powder fertilizer. Pre-charged with humic and fulvic acids, as well as amino acids. 

All Cutting Edge Solutions are formulated with only the finest raw inputs. Selecting the best materials has remained a top priority when we developed our new powdered nutrient system.  Connoisseur customers demand the very best, grown with a dedication to science and craftsmanship.

Bloom label with NPK
Bloom label with NPK

Suggested use during transitional period from vegetation into flowering:

We have conducted several complete grow trials on different farms. Our research suggests feeding at ½ Grow and ½ Bloom during the transition to 12 hours-on / 12 hours-off cycle, for 1 week on most common strains.

However, each cultivar and soil maybe be different. Our suggestion may vary slightly from grower to grower.  Longer flowering sativa strains require the half Grow and half Bloom for at least 2-3 weeks.

If farmers experience more crop stretch than they’re comfortable with, we instead recommend a ¼ Grow and ¾ Bloom for 2-3 weeks of transition. After stretch and flower-set begins, discontinue using Grow.  The ratios are dependent on your feed strength, which will be dictated by variety.

Your perfect ratio will depend on desired feed strength PPM (EC) which varies depending on your cultivation system, water quality and cultivar tolerance.

Our Grow 10-6-12™ provides plenty of nitrogen, so the general rule is that farmers use less Grow than Bloom during the 12/12 transition stage.

Bloom 5-13-28™


Total Nitrogen (N) – 5.0%

  • 5% Nitrate Nitrogen

Available Phosphate (P2O5) – 13.0%

Soluble Potash (K2O) – 28%

Calcium (Ca) – 1.5%

Magnesium (Mg) – 1.0%

Sulfur (S) – 3.60% (combined sulfur)

Boron (B) – 0.03%

Copper (Cu) – 0.05%

Iron (Fe) – 0.10%

Manganese (Mn) – 0.05%

Molybdenum (Mo) – 0.001%

Zinc (Zn) – 0.05%

Derived from: potassium nitrate, potassium phosphate, potassium sulfate, magnesium sulfate, calcium carbonate, copper, iron, manganese, zinc, sodium borate, and ammonium molybdate.

Information regarding the contents and levels of metals in this product is available at:

Feeding rates:

For use during the flowering stage of plant growth, after vegetational growth.

Use .5 to 1.5 teaspoon per gallon of water, depending on stage of growth, plant size, water quality and other nutritional content in growing medium.

For autodosers, mix 1 gallon of R.O. water with a 1/2 pound (.5 lb) of powder to create concentration, stir well, adjust doser to desired PPM.

Bloom 5-13-28™ is a highly concentrated, single-part powdered fertilizer.

Do not store product in direct sunlight. Do not freeze.

Designed for use in soil, hydroponics, soilless, continuous feed systems, drain to waste, and soil applications.

Coco growers have reported best results when pre-treating coco with our organic Plant Amp™, or our Cal-Mag Amplified™. Drench the coco medium at regular suggested rates before transplanting.

Safety Data Sheet