'Vitamins' for Plants

Explore the incredible results for your succulents and house plants with our chelated micronutrients.

CACTUSRX – Our formulations are particularly effective in alkaline soils, making them perfect for succulent enthusiasts.

HOUSEPLANTRX – Same blend of chelated micronutrients PLUS we added Humate to increase availability of nutrients to plants.

Exclusive Plant Formulations

Our exclusive formulations are available in three unique blends, each carefully crafted to meet the specific needs of your green companions.

3 Unique Blends to Choose From!

Cactus RX

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Garden of cacti, agaves and succulents near to famous archaeological site Tula de Allende, Hidalgo state, Mexico, North America (Garden of cacti, agaves and succulents near to famous archaeological site Tula de Allende, Hidalgo state, Mexico, North Am

Iron Boost

Elevate your plant's iron levels with our specialized iron supplement, perfect for addressing nutrient deficiencies and promoting vibrant, lush foliage.

Cactus RX+

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Baystar LLC --- DBA - CASTUS RX

Essential Blend

Our comprehensive formula combines essential micronutrients, including IRON, ZINC, MAGNESIUM, COPPER, MOLYBDENUM, AND BORON. This powerful combination ensures a well-rounded and balanced nutrient profile for optimal plant growth and development.

HousePlantRX

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Baystar LLC --- DBA - CASTUS RX

Humate Enriched

Take your plant care to the next level with our Humate Enriched formula. In addition to the essential micronutrients found in our second blend, this version also includes humate for enhanced soil structure and nutrient absorption. Ideal for succulents thriving in alkaline soils.

Baystar LLC --- DBA - CASTUS RX
Baystar LLC --- DBA - CASTUS RX

Why Chelated Micronutrients Matter?

Plants, like humans, need a balanced diet of nutrients to thrive. Chelated micronutrients play a critical role in plant health, enhancing growth, color, and disease resistance. From budding seedlings to mature plants, every stage of growth can benefit from the power of chelated micronutrients.

General Symptoms of Micronutrient Deficiency in Plants:

IRON Yellowing between the veins or ribs of younger leaves. Eventual loss of color and turgidity to the entire plant.
MANGANESE Loss of color to the leaf between veins. The resulting color may be yellow to almost white. Small gray specks appear on young leaves first then eventually the entire plant.
COPPER Young leaves are permanently wilted and the growth of the entire plant is retarded. Often, there is die-back in citrus with bumpy and split fruit.
BORON Plant stems become brittle. Leaves will often curl inward and produce a burnt appearance. Growth is stunted or gnarled.
MOLYBDENUM A distinctive mottling occurs in older leaves, with veins remaining light in color. As the deficiency is prolonged, puffing of the chlorotic areas occurs. Leaves curl inward and begin to die along tips and margins.
ZINC Leaves are mottled to uniformly yellow in color.

After "Hunger Signs in Crops", Howard B. Sprague, ed.,

Baystar LLC --- DBA - CASTUS RX

Cactus RX and HousePlants RX Micronutrients may be used as a dry soil amendment or as a liquid applied to the leaves and around the drip zone of the plant.

To use in liquid form, mix one oz with ½ gal of water or six tablespoons (two ounces) of powder in one gallon of water. Stir gently until dissolved and sprinkle around the root zone at the base of the plant.

Potting Soil - 2 ozs. per cu. ft.
New (young)Plants up to 8” ½ teaspoon ¼ teaspoon
Older Potted Plants up to 8” ~ ¾ to 1 teaspoon ¼ teaspoon
Potted Plants over 8” 1 to 2 teaspoons ½ teaspoon
Flowers & Ornamentals 1 oz. per ft. height 1 teaspoon per ft height
Vegetable Garden 1 gal per 100 sq.ft. 1 lb per 1000 sq. ft.
Bush Fruit 1 gal. per 200 sq. ft. 4 oz. per 200 sq. ft.
Trees and Large Shrubs 1 qt. per inch diameter 2 oz. per inch diameter

* The recommended mixing ratio is 6 tablespoons (2 ozs.) of dry micronutrient per gallon of water. Do not exceed 1 lb. per 12 1/2 gallons (3 ounces per gallon). 

For use as a soil amendment, simply work into the soil by raking into the top 2’.  If you are planting in pots, blend thoroughly before planting.  

Package Options

  • Approx. 1+ oz Package: Starting at $12 (Including Freight, Postage, and Taxes)
  • Approx. 2+ oz Package: Starting at $20 (Including Freight, Postage, and Taxes) (Mix with 1 gallon of water for optimal application)
  • Approx. 1 Pound Jar: Starting at $60 (Ideal for gardens or large applications)