Why Expert Growers Love GreenPlanet’s 3-Part Program

If you’re a seasoned grower, you’ll love GreenPlanet’s GP3 3-Part program. Here’s why: GreenPlanet’s GP3 offers expert growers access to one of the cleanest and most quality-driven 3-Part formulations on the market. GP3 is clean because it’s produced without the inclusion of carbonates, bi-carbonates, fillers, artificial colours, or preservatives. Also, the quality design of GreenPlanet’s 3-Part is unmatched by competitors. 3-Part nutrient programs are classic and traditional nutrient enrichment programs. GP3, however, is the only 3-Part program on the market that provides plants with stable elements, chelated micronutrients, and multiple sources of iron, all within a clean, low salt formulation. If you want to learn more about why expert growers love GreenPlanet’s 3-Part program, read the following passages below. 

What is GreenPlanet’s GP3 3-Part Feed Program?

GreenPlanet’s 3-Part GP3 feed program consists of a three-part base nutrient system and several additives that enhance both vegetative and blooming growth. The base nutrient component consists of three parts: Grow, Micro and Bloom. Made for the expert grower, GP3 offers plants everything they need in 3 bottles. From essential micronutrients like copper, boron, and zinc, to balanced levels of nitrogen, phosphorus, and potassium, GP3 is fed to plants in varying ratios throughout stages of propagation, growth, and bloom, making it the perfect stack of fertilizer for growers who want nothing but the best.

Why Expert Growers Love GreenPlanet’s 3-Part Program 

A Clean Formula: No Carbonates, Bi-Carbonates, or Fillers 

GP3 contains no carbonates, bi-carbonates, unnatural derivatives, or fillers, and each product in the GP3 program goes through a rigorous filtration process during production to ensure an extremely low salt index. Carbonates and bi-carbonates form when a positively charged metal ion comes in contact with the oxygen atoms of a carbonate ion. These compounds are often insoluble in water and exhibit some level of basicity or acidity in water (Zumdahl, 2008, p. 17). Experts argue that carbonates and bi-carbonates can be damaging to crops by allowing micronutrients to become less available to plants at undesirable pH ranges, therefore inducing micronutrient chlorosis (Morgan, 2008, p. 60). Furthermore, fertilizers high in carbonates and bi-carbonates contain a high salt index and can consequently lead to the buildup of sodium in drip emitters, irrigation lines, and/or reservoirs (Morgan, 2008, p. 43). 

GreenPlanet ensures the cleanliness and solubility of their 3-Part program by selecting only the purest raw ingredients that undergo no damaging alteration during the manufacturing process. And, to guarantee that GP3 remains as soluble as possible, each product goes through a multi-step filtration process before it is bottled. In short, expert growers love GreenPlanet’s 3-Part because they trust the consistency and quality of the product. 

Includes Multiple Sources of Iron 

While micronutrients only account for 1% of a plant’s dry matter content, they are essential for the vegetative and blooming periods of growth. Iron (Fe), in particular, is an extremely important micronutrient that flowering plants rely on to transport nutrients, respire and photosynthesize water and light energy. Reduced or insufficient iron in the root zone can lead to deformed growth, interveinal chlorosis, poor yields, weakness, and low iron-induced anemia (Schmidt et al, 2020, para. 2). 

GreenPlanet makes sure your plants acquire a wide variety of elemental iron to avoid the exaggeration of the issues above. For example, three unique sources of chelated iron (Iron EDTA, Iron EDDHA, Iron DTPA) are included in the GP3 Micro formulation. Iron EDTA and EDDHA are both synthetic sources of iron, however, they contain different functions when fed to plants in a solution. Iron EDTA, for instance, is made of strongly chelated ions that hold iron elements together for uptake in pH ranges from approximately 6.0 – 6.5; past this, however, iron EDTA becomes almost impossible for plants to absorb (Krauskopf, 2007, para. 4). Then, until a pH of around 8.0, EDDHA becomes the plant’s available source of iron. Finally, at any pH level above 8.0, the last source of iron (DTPA) becomes readily available to plants (Krauskopf, 2007, para. 4). 

It’s recommended that growers always maintain an acceptable pH range (somewhere between 5.8 – 6.5, depending on the system). However, in the unlikely event that your nutrient solution does rise beyond a suitable range, it’s important to note that safeguards against inevitable micronutrient deficiencies have been put in place. GreenPlanet includes these three sources of iron in their 3-Part feed program to guarantee suitable access to this important micronutrient, no matter the extreme alkalinity of a nutrient solution. 

Intricate and Balanced Nutrition

GP3 is supplied to plants in varying ratios throughout stages of propagation, growth, and bloom. For example, GP3 Micro and Grow are fed more heavily during the vegetative stage, while GP3 Bloom is the primary component of the nutrient system during flower. These varying ratios make up a scheduled program of plant nutrition in each stage of growth, allowing growers to get the most out of their nutrients with little waste and no issues with common deficiencies. 

This point is not to say that 1 or 2-Part feeding programs aren’t as effective as more intricate nutrient systems. However, by feeding your plants exactly what they need in specific stages of growth, you can guarantee that your crop will have maximal output at harvest time. So, while the GreenPlanet 3-Part program may be slightly more complex, expert growers would agree that the intricacy and balanced nutrition provided by GP3 massively outways the extra effort. 

Whatever your style of garden, chances are, GreenPlanet Nutrients has the perfect base nutrient program. To access the programs available at GreenPlanet Nutrients, contact a member of the GreenPlanet sales team, or your local garden supply store for product information and purchasing inquiries. 

Works Cited

• Krauskopf, D. (2007). Selecting which iron chelate to use. Michigan State University. Retrieved September 21st, 2021 from MSU Extension 
• Schimdt, W. (2020). Editorial: Iron nutrition and interactions in plants. Retrieved September 21st, 2021 from Frontiers in Plant Science
• Morgan, K. (2008). Nutrition of Florida citrus trees. University of Florida IFAS Extention. Retrieved September 21st, 2021 from University of Florida The Institute of Food and Agricultural Sciences
• Zumdahl, S. (2008). Oxyacid: Additional information. Encyclopedia Britannica. Retrieved September 21st, 2021 from Britannica 

Check out our Resource Centre for more product information

• MSDS Sheets
• Individual Product Information
• Feed Programs
• Retailer Login Resources

Read More

• 
  Feeding for Flavour: The Secret to Terpene-Rich Cannabis GrowsJuly 22, 2025
  In today’s cannabis market, flavor and aroma are just as important as potency. With connoisseur consumers placing increasing value on terpene profiles, growers are seeking
• 
  A guide on When to Harvest CannabisJuly 7, 2025
  When it comes to growing cannabis, know when to harvest cannabis is crucial. Harvest too early and you’ll end up with lower potency and reduced
• 
  A guide to Coco CoirJuly 7, 2025
  Coir (pronounced coy-er) is a natural fiber derived from the outer husk of coconuts. Once the coconut’s edible parts are removed, the husk is processed