International Rainbow Plant Food Products

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Every great product has to start somewhere, and International Plant Food is our basic granular fertilizer. International is designed for crops and situations where nutritional needs can be met without premium products. The fertilizer contains a standard amount of nitrogen, phosphorus, potassium, and sulfur – the four ingredients for Above-average Yields. What's more, every granule of International Plant Food provides the ideal mix of these minerals to Make Your Fields Thrive.

Because every farmer is different, because every grower grows different crops, we offer International Plant Food in a variety of grades for a variety of crops in every region of the country.

The following is an example of the grades that are normally inventoried at our plants.

Grades of International Rainbow Plant Food - View Table

Chemical Make Up

Every granule of Rainbow Plant Food contains a perfect combination of nutrients to maximize distribution and crop yield. Here’s a sampling of some of the minerals our granules contain:

Magnesium – This mineral is a key element for chlorophyll development and the formation of sugars within the plants. Magnesium also acts as a carrier for phosphorus throughout the plant and root system. Think of it as a highway, enabling transportation inside your crops.

Sulfur – Sulfur also plays a vital role in chlorophyll production. This mineral is essential to plant growth, root development and seed production. Sulfur also can increase the efficiency with which plants use other minerals, such as nitrogen and phosphorus.

Calcium – Calcium isn’t only responsible for strong bones in growing humans; the mineral also promotes development of a plant’s cell strength, while affecting the plant’s uptake of other nutrients. Got calcium?

Nitrogen – While the human body rejects nitrogen, the mineral is a key component of plant life. Nitrogen comprises the part of chlorophyll involved in photosynthesis, and also is part of plant energy systems that helps with amino acid and protein production.

Phosphorus – Phosphorus plays a role in the all-important functions of cell division and cell enlargement. It is a mineral every plant needs to grow, and is therefore a mineral we make sure we put in every one of our International, Rainbow, and Super Rainbow Plant Food products.

Zinc – Zinc is necessary for regulating plant growth hormones, as well as activating plant enzymes critical to maturation. Put simply, without zinc, plants just cannot grow up.

Boron – Cell elasticity is critical for newly developed cells that need to elongate rapidly, and boron promotes it better than just about any other mineral. The nutrient is therefore perfect for high-yield crops.

Iron – Iron is as important to health in plants as it is to health in humans. In plants, it acts as an oxygen carrier, helping form certain respirator enzyme systems in most crops.

Molybdenum – One of the only words in the English language to pit a “b” and a “d” consecutively, molybdenum is required for plants to reduce nitrogen to usable forms. It’s also necessary to convert inorganic phosphorus to organic forms.

If these minerals aren’t enough to remember, Potassium, Copper, Chloride, and Manganese are all also necessary for photosynthesis, chlorophyll formation, and the activation of many other enzymes. Chloride in particular is involved in the chemical breakdown of water in the presence of sunlight.

Considering all of these choices, you can’t go wrong with International. While we don’t make specific International Plant Food products for specific crops, all of our International grades contain a mix of Nitrogen, Phosphorus, and Potassium. This triumvirate, a trio we call “NPK,” comprises our basic offering of primary nutrients that play a vital role in chlorophyll production, plant growth, root development, and seed production. Here’s how:

Potassium – Potassium is what we like to call a super mineral; it helps with the development of amino acids, it promotes overall healthfulness, and is involved in the chemical breakdown of water in the presence of sunlight. It also forms the foundation of what we call potash.

Many granules of International Plant Food also contain secondary nutrients such as Calcium, Magnesium and Sulfur, which spur all-around healthfulness in crops of every kind. Some grades of International also contain traces of additional nutrients, such as Iron, Boron, Manganese, and Zinc.

With International Plant Food, growers learn the difference between soil and pay dirt. See for yourself today.

If you are interested in buying Rainbow products, locate the closest farmarket or dealer near you.