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Pure Blend® Pro Soil 1-4-5

The Pure Blend® Pro Series includes all natural and organic-based, one part base nutrient formulas optimally blended for desired nutrition in each phase of growth.

Premium, Bloom, Base Nutrient for Soil & Coco

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Pure Blend® Pro Soil 1-4-5 blooming natural and organic-based nutrient is specifically designed for plants cultivated in soil and coco. Containing only natural sources of essential major, secondary, and trace minerals from the land and sea in a 100% soluble form Pure Blend Pro Soil encourages the development of vigorous buds, fruits, and flowers. Cultivating plants in soil requires higher phosphorous levels to offset clay colloidal particles that bind up phosphorous and offset soil microbes that also compete for the phosphorous. Pure Blend Pro Soil 1-4-5 offers this needed phosphorus and provides nutritional value for blooming fruiting and flowering plants.

  • Formulated for coco and soil applications.
  • Suitable for use with all growing mediums and hydroponic methods.
  • 100% plant soluble organics for fast absorption
  • Increases budding, flowering, and fruiting capacity.
  • Essential elements are not derived from harmful chemicals such as urea and ammonia nitrate.
  • Eliminates the plants' exposure (and ultimately the consumer) to toxic heavy metals which can occur as contaminates in chemical fertilizers.
  • The organic components of Pure Blend Pro enhance uptake and utilization of plant nutrients.
  • Amplified Metabolic rate and capacity enables plants to produce fruits and vegetables with more minerals and vitamins.

Content based on US labels

I love this stuff. my plants started to bud right away using pro bloom 1-4-5 . I used Pure Blend Pro 3-2-4 during the veg stage an my plants never had one leaf turn color die or anything. The plants where super dark green when using pure blend 3-2-4 .. this stuff is super easy to use especially for beginners.. ill continue to use these products for future crops. My advice to anybody would be to spend the extra money and buy the bigger container. Especially the 1-4-5 thanks botanicare for keeping it easy...


I was super disappointed to find out this product wasn't organic. I guess it's my fault for not reading "100% natural and organic" as "all natural with a small organic portion. Shady marketing from a company that is known for calling out another company's product line, that is actually 100% organic, as a "rip off."

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Understanding product date codes

Q: Is Pure Blend Pro completely organic?
A: Pure Blend Pro is natural and organic-based, not “100% organic.” Although it is created from natural and organic inputs such as humic acid, guano, kelp, rock phosphate, and carbonates, these naturally-occurring inputs are processed for enhanced stability and product quality purposes which prevents it from qualifying as completely organic.

Q: After adding Pure Blend Pro to my reservoir the pH drops very low. Is this normal or problematic?
A: Yes experiencing low pH after adding Pure Blend Pro is completely normal. In it’s concentrated form Pure Blend Pro is very acidic which helps the product to remain stable during storage and maintain the original composition and quality of the formula.

Q: Can Pure Blend Pro be used in DWC, Aeroponic, NFT, and systems?
A: Yes all 3 Pure Blend Pro formulas are water soluble and can be used in any type of hydroponic system.

Q: What is the ideal grow room temperature?
A: Most plants do well between 65˚F - 80˚F (18˚C - 26˚C) for light and dark cycles. Having a lower temperature during the plant’s dark cycle is common. When temperatures are higher than the recommended range, you may experience more pest problems, reduced dissolved oxygen in the nutrient solution, and increased plant transpiration which can increase humidity and irrigation demand. Cooler than recommended temperatures may slow growth.


Q: What is the ideal nutrient water temperature? Should it be cooler than the grow room?
A: The ideal water temperature in hydroponics is from 68°F - 75°F (20°C - 24°C). There is less dissolved oxygen available in water at higher temperatures.


Q: How often should I change my reservoir water? 
A: We recommend changing your reservoir water completely every 10 - 14 days. Even though you can top off your reservoir with water to make up for water lost by evaporation and plant transpiration, you can’t accurately measure the nutrients left in the water after plants have taken up some of the nutrients. (For instance, plants may need / deplete more nitrogen during some growing stages.) The only way to ensure optimal growing success is to know the exact ration of NPKs you’re feeding by starting fresh with a new batch of nutrient solution.


Q: Are your products organic?
A: We have many certified/listed organic products and use many organically derived ingredients in our formulations. Organic certified compounds are naturally occurring compounds like bat guano or alfalfa meal, rather than mineral compounds that are mined or synthesized. While not all of our products are CDFA, OMRI, NOP certified organic we strive to use natural and organic inputs whenever possible.


Q: Which nutrients or supplements should I use to increase flower size?
A: Our bloom booster, Hydroplex, contains high levels of phosphorus and potassium which are beneficial for flower initiation and structure. Phosphorus will increase the number of flowers and potassium will increase the weight of flowers.


Q: I’m having a problem with scum in my reservoir, what do I do?
A: We recommend covering your nutrient solution reservoir to decrease light and therefore decrease the likelihood of unwanted algae, bacteria or fungal growth. These organisms need nutrients, light, and water to multiply and thrive. Keeping your room and water cool will slow the potential growth of these organisms. Clean your reservoirs between crops and plant stages of growth. You can use bleach or hydrogen peroxide to clean them, but rinse well to remove all cleaning product residue before refilling with nutrient solution.


Q: Which Botanicare nutrient system would be best for me to use?
A: We’ve created 4 different base nutrients for different uses and purposes. CNS17 is the simplest mineral base with all of the necessary macro and micro nutrients included in one bottle. Pure Blend Pro is our natural and organic one-part nutrient that contains natural and organic based ingredients. KIND is a three-part mineral based nutrient which requires no Calcium/Magnesium supplementation and allows the grower the most flexibility in application. Growilla is a dry organic nutrient formulation (OMRI listed/CDFA) which delivers excellent results outdoors in soil and in large containers.


Q: Should I use all the supplements you manufacture?
A: The short answer is, no. We make a wide variety of supplements that can be used for different purposes. Some products like Pure Blend Tea and Liquid Karma are fairly similar, but they were developed for different reasons. We recommend Pure Blend Tea be used with KIND to add flavors and aromas, and Liquid Karma be used with Pure Blend Pro base nutrients to add additional bio-stimulants. Check our website or product pages and information sheets for clarification--our website has some excellent Pre-Developed Recipes to guide you.


Q: Which grow medium do you recommend?
A: We were one of the first companies to recommend coco coir for growers, and we do think it delivers excellent results. We have 3 premium coir based formulas to choose from - Cocogro, Readygro Aeration and Readygro Moisture. Cocogro can be blended with your favorite amendments or you can chose our Readygro Aeration or Moisture depending on your irrigation needs.

Q: Are your plastics food-safe?
A: Our trays and reservoirs are made of BPA-free plastic, but they are not rated for food storage. Plastic pots are used to grow all kinds of food and are rarely food grade because the plant roots are not eaten. Food grade plastics are used to store, prepare, or serve food. Our trays are made from extra thick, high-impact, BPA-free ABS plastic and have a smooth finish for easy cleaning.

Q: How and when do I check my pH and PPM levels?
A: You should check the pH and PPMs of your nutrient solution after mixing the nutrient solution and periodically throughout the usage of the solution (if using a recirculating system). You should use a pH meter, colorimetric pH solution, or indicator strips to test the nutrient solution or the runoff from the plants. You can use a PPM or EC meter to test the concentration of the nutrient solution.

Q: When should I adjust my pH levels and what should pH level be?
A: Check and adjust pH after you have mixed your nutrient solution and periodically during the usage of the nutrient solution if using a recirculating system and the pH becomes out of range. We recommend a pH level between 5.5 - 6.5 for maximum nutrient availability.


Q: Do you have a nutrient or supplement that is pH stable so that when I adjust my pH, it won’t change?
A: The pH of the nutrient solution will vary depending on the source water, the nutrient concentration, and the uptake of nutrients by the plant if using a recirculating system. You should always check your pH and adjust it to ensure best availability of nutrients to the plant.


Q: What is the difference between PPM, EC and TDS?
A: TDS stands for total dissolved solids, PPM stands for parts per million, and EC stands for electrical conductivity; which are acronyms used to quantify the concentration of nutrients as positive or negatively charged salts in the solution or growing substrate. Meters measure the electrical conductivity (EC) of the salts and can convert to PPMs or TDS.

Q: What conversion factor does Botanicare use for nutrient calculations to convert EC to PPMs?
A: Botanicare uses the 700 ppm to 1.0 EC factor. This is standard for most EC or ppm meters as well, but check the specifications of your meter to be sure.

Q: What should my PPMs or ECs be at each stage of growth?
A: The concentration of nutrients that plants require depends on their stage of growth, i.e. smaller plants need less food. See our nutrient calculator, or more information in our Hydro 101 section.


Q: When should I add nutrients?
A: You should add nutrients as soon as the first true leaves emerge if growing from seed or when the plant has developed roots if growing from cuttings. You can find detailed information on our website using the nutrient calculator, feed sheets, or on the back of the bottle of our base nutrient formulations.


Q: Should I top off with straight water or water with nutrients added? 
A: If you are growing in a system that re-uses nutrient solution, like with the ebb and flow method, you should top off with straight water if the reservoir level is lowered by evaporation or plant uptake. Remember that you will have no way of knowing how much of each nutrient (like nitrogen) has actually been used by the plants (and is therefore depleted in the reservoir water.) We recommend completely changing out and replacing all the nutrient solution every 10 - 14 days so you know the exact ratios you are feeding the plants.


Q: Do I need to use humic or fulvic acid with Liquid Karma or Pure Blend Pro?
A: No, both of these products contain these naturally occurring organic acids.   


Q: Can I use hydrogen peroxide with your nutrients and supplements?
A: We do not recommend using hydrogen peroxide in application to plants as this may kill off beneficial microorganisms that live in the substrate surrounding root zone of the plant. Hydrogen peroxide is an environmentally friendly product for cleaning and sterilization, but is not recommended in nutrient solution mixtures.


Q: What is the difference between Pure Blend Tea and Pure Blend Pro?
A: Pure Blend Tea is an organically derived compost tea supplement which can be used with many base nutrient systems to increase flavors, aromas and terpene production. Pure Blend Pro is a premium, complete, one-part base nutrient system that contains the same natural and organic compounds which add flavors and aromas found in Pure Blend Tea. It is not necessary to use Pure Blend Tea if using the Pure Blend Pro nutrient line.

Q: What are the best tools for opening and dispensing product from your larger size liquids?
· 5-gallon cap - Container Wrench for 70mm Caps & 3/4" Slotted Drum Plugs.
· 15’s & 55’s cap - Container Wrench for Bung Plugs & 3/4" Slotted Drum Plugs.
· 15 & 55 Dispenser – Zee Line Part# 375 hand pump siphon.

Use every watering. If using reverse osmosis water, it is recommended to use 1 tsp (5 ml) of Cal-Mag Plus per gallon of water (4 l).

Guaranteed Analysis:

  • Total Nitrogen (N) 1.0%
  • 1.0% Water Soluble Nitrogen
  • Available Phosphate (P2O5) 4.0%
  • Soluble Potash (K2O) 5.0%
  • Calcium (Ca) 1.0%
  • Magnesium (Mg) 0.5%
  • 0.5% Water Soluble Magnesium (Mg)

Derived from: Fish Meal and Kelp.

ALSO CONTAINS NON-PLANT FOOD INGREDIENT: 0.35% Humic acid derived from leonardite.

Pure Blend Pro MSDS


INGREDIENTS: Dolomite, potassium carbonate, fish meal, seaweed extract, magnesium sulfate, humic acid.

  • Physical Form: Liquid
  • Boiling Point: 100°C
  • Vap Press: n/a
  • Vap Density: n/a
  • Sol in Water: Appreciable
  • Evaporation Rate: n/a
  • Appearance: Dark, coffee-colored liquid
  • Odor: Slight organic odor
  • Flash Point: n/a
  • Method Used: n/a
  • LFL: n/a
  • UFL: n/a
  • This product is not combustible. Use any appropriate medium for extinguishing surrounding fires.
  • Stability: Stable.
  • Polymerization: Will not occur.
  • Conditions to Avoid: Water of crystallization from applicable components driven off at approximately 235° Fahrenheit/113° Celsius.
  • Materials to Avoid: Solutions can be corrosive to metals. Avoid strong oxidizing and reducing agents. Hazardous Decomposition Products: None.
  • Wear protective equipment, including rubber boots, rubber gloves, rubber apron and chemical goggles. For small spills, sweep up and dispose of in DOT-approved waste containers. Comply with all applicable governmental regulations on spill reporting, and handling and disposal of waste.
  • If Inhaled: Remove to fresh air.
  • In Case of Eye Contact: Flush eyes with lots of running water.
  • In Case of Skin Contact: Wash skin with lots of soap and water. Remove contaminated clothing and shoes. Get medical attention if irritation persists.
  • If Swallowed: Do not induce vomiting. Consult a physician.
  • Primary Routes of Exposure: Skin or eye contact, swallowed.
  • Eye Contact: May moderately irritate eyes.
  • Skin Contact: May irritate damp skin.
  • Swallowed: Swallowing may result in abdominal discomfort.

CHRONIC EFFECTS OF EXPOSURE: No specific information available.


  • Ventilation: Local mechanical exhaust ventilation at the point of use.
  • Respiratory Protection: NIOSH-Approved dust and vapor respirator or mask in the absence of adequate environmental controls at the point of use.
  • Protective Clothing: Long-sleeved shirt, trousers, safety shoes and gloves.
  • Eye Protection: Chemical goggles.
  • Other Protective Measures: An eyewash and safety shower should be nearby and ready for use.

MATERIAL SAFETY DATA SHEET EMERGENCY ASSISTANCE: For emergency assistance involving PUREBLEND, call American Agritech at (480) 517-0542 or 1-877-753-0404. Product and sales information contact American Agritech at the same numbers.