Best Micronutrients Fertilizer For Plants for Indoor and Outdoor Use

#1 · Best Overall

1. Jackpot Micronutrient Mix

• Weight: 2 lb
• Form: Liquid

Best for: Broad indoor-outdoor coverage.

Why it ranks #1: Lists seven micronutrients, including iron and zinc, and is intended for indoor and outdoor plants, gardens, trees, shrubs, and lawns.

Seven named micronutrients—boron, calcium, copper, iron, magnesium, manganese, and zinc—give Jackpot a broad supplemental profile beyond the basic NPK nutrients. Its liquid mix is intended for both indoor and outdoor vegetation, so one product can serve houseplants alongside garden beds, trees, shrubs, and lawns.

The listed nutrient range spans seven elements, including iron and magnesium, while the product is positioned as a supplement to basic nitrogen, phosphorus, and potassium. That makes it a fit for growers seeking micronutrient coverage across varied plantings rather than a single plant type. Its liquid form can be incorporated into indoor or outdoor plant care, and the stated use sites include flowers, vegetables, trees, shrubs, and lawns. The supplied information does not specify dilution instructions.

Skip it if you need a specified dilution rate before applying; the supplied Jackpot information does not give one.

Choose Jackpot if you want a liquid micronutrient supplement for a mix of indoor plants and outdoor plantings. Its broad use-site list is useful, but growers who require a listed mixing rate will need more application guidance.

Listed on Amazon as: Jackpot Micronutrient Liquid Fertilizer Mix | Indoor & Outdoor | for Plants, Flowers, Vegetable Gardens, Trees, Shrubs & Lawns (32oz)

#2 · Broad Use Liquid

2. Covington MicroNutrient Plant Food

• Weight: 2 lb
• Form: Liquid

Best for: Multi-setting liquid micronutrients.

Why it ranks #2: Liquid formula is described for indoor, outdoor, and hydroponic use, with listed boron, cobalt, copper, iron, manganese, and zinc.

Hydroponic use alongside indoor and outdoor applications sets Covington Naturals MicroNutrient Plant Food apart for growers using different cultivation settings. Its liquid formula lists micronutrients together with nitrogen, phosphates, and potash, and the stated plant range includes houseplants, lawns, vegetables, and flowers.

Covington’s listed nutrient profile includes boron, cobalt, copper, iron, manganese, and zinc, as well as nitrogen, phosphates, and potash. That blend is presented for periods of high nutrient demand and for plant health, growth, and yields. Its directions identify hydroponic, indoor, and outdoor use, giving it broad setting compatibility, while the liquid form serves as plant food and foliar plant food. The supplied information says to follow manufacturer instructions but does not provide a dilution rate here.

Skip it if you need a specific mix ratio before use; no dilution rate is included in the supplied details.

Covington Naturals is a fit for growers seeking one liquid micronutrient product for hydroponic, indoor, or outdoor plant care. Its broad setting claims are useful, but buyers who require an explicit dilution rate will need further instructions.

Listed on Amazon as: All Purpose MicroNutrient Plant Food & Lawn Fertilizer, Indoor/Outdoor/Hydroponic Liquid Plant Food, Growth Boosting MicroNutrients for House Plants, Lawns, Vegetables, & Flowers (32oz.) USA Made

#3 · Detailed Nutrient Blend

3. Prevegenics MicroGenics 0.75%

• Weight: 2.8 lb
• Form: Liquid

Best for: Foliar feeding with amino acids.

Why it ranks #3: Names seven elements at 0.75% each and gives a foliar dilution of 15 mL per gallon; its amino-acid complex is EDTA free.

Amino-acid complexing and an EDTA-free formula distinguish Prevegenics MicroGenics 0.75%, which is intended for foliar application and nutrient uptake. The listed analysis names seven elements at 0.75% each, while its squeeze-to-measure bottle supports mixing a spray for plant leaves.

MicroGenics is applied as a fine foliar mist: the directions call for 15 mL, or 0.50 fluid ounce, per gallon of water. That gives growers a stated dilution for preparing a spray rather than leaving the dose unspecified. Its amino-acid complexed nutrients are described as EDTA free, with nutrients moving throughout the plant. At 32 fluid ounces, the bottle is also stated to make up to 60 gallons; handling directions advise avoiding skin and eye contact.

Skip it if you prefer a product specified for routine soil watering; MicroGenics directions call for a fine foliar mist.

This is a fit for growers who want a measured foliar micronutrient spray and value its amino-acid complexed, EDTA-free formulation. It is less suited to buyers seeking directions for applying nutrients through ordinary soil watering.

Listed on Amazon as: MicroGenics 0.75% | 32 fl. oz. | Contains .75% Magnesium, .75% Manganese, .75% Zinc, .75% Copper, .75% Boron, .75% Nickel and .75% Iron | Liquid Fertilizer | Makes up to 60 Gallons

#4 · Iron-Focused Spray

4. Ferti-lome Chelated Liquid Iron

• Weight: 16 oz
• Form: Liquid

Best for: Iron-deficiency foliage care.

Why it ranks #4: Targets iron deficiency and includes other micronutrients; directions specify a foliage spray of one tablespoon per gallon of water.

Chelated iron aimed at correcting yellowing foliage is the defining use of ferti-lome Chelated Liquid Iron & Micronutrients. The concentrate also adds other key micronutrients and mixes with water, offering a targeted nutritional spray for shrubs, lawns, trees, flowers, and vegetables.

The product is specifically presented for iron deficiency and other nutrient deficiencies, making it more targeted than a general-purpose fertilizer; its listing explicitly says it should not be substituted for fertilizer. For foliage treatment, the directions call for one tablespoon per gallon and a thorough spray on both sides of leaves. Soil application is also described, with amounts depending on tree or shrub size. The concentrate therefore offers more than one application route, but requires following the label for the relevant plant and method.

Skip it if you need a complete fertilizer rather than targeted iron and micronutrient correction; this product says not to substitute it for fertilizer.

Consider ferti-lome for plants showing yellowing foliage when a chelated iron treatment and other micronutrients are the goal. Keep its stated boundary in mind: it is a nutritional supplement, not a replacement for a complete fertilizer.

Listed on Amazon as: Fertilome (10625) Chelated Liquid Iron & Micronutrients, 16 oz

#5 · Amino Acid Powder

5. BioAg Multi-Mino

• Weight: 1.5 lb
• Form: Powder

Best for: Amino-acid complexed powder.

Why it ranks #5: A powder with amino-acid-complexed micronutrients, described for improving uptake and addressing deficiencies; the label warns against use on sensitive crops.

Amino-acid complexing in a spray-dried powder gives BioAg Multi-Mino its distinctive approach to micronutrient feeding. The product is presented as a way to enhance micronutrient uptake and can be used immediately to address deficiencies, while also serving as a food source for microbial populations.

Multi-Mino is described as a fine, free-flowing, hygroscopic powder with short peptide-form amino acid chains derived from enzymatic hydrolysis of non-GMO soybeans. Its natural complexing agent is intended to enhance micronutrient uptake, while the product also claims to improve efficiency of applied fertilizers and support soil microbial populations. That combination may suit growers seeking a supplemental role alongside existing fertility practices. The key crop boundary is explicit: it contains boron and should not be used on sensitive crops.

Skip it if you grow boron-sensitive crops; the supplied safety information says not to use Multi-Mino on them.

Multi-Mino fits growers seeking an amino-acid complexed powder for micronutrient uptake and fertilizer-efficiency support. Check crop sensitivity first: its boron content makes it unsuitable for sensitive crops, a significant boundary for this choice.

Listed on Amazon as: BioAg Multi-Mino Organic Micronutrient Fertilizer, Amino Acid Complexed Micronutrient Fertilizer (1.5 lbs)

#6

6. FoxFarm Cultivation Nation Micro

• Weight: 16 oz
• Form: Liquid

Best for: Three-part program micronutrient step.

Why it ranks #6: A liquid micronutrient product with 5-0-1 NPK, but it is specifically part two of a three-part feeding program rather than a standalone broad-use option.

FoxFarm Cultivation Nation Micro is explicitly the second step in a three-part liquid feeding program, making its role clearest for growers already following that sequence. Its micronutrients are intended for established plants through vegetative and flowering stages, with weekly or every-other-week mixing directions.

The product’s 5-0-1 analysis accompanies its role as the Micro part of FoxFarm’s Cultivation Nation program, following Cultivation Nation Grow. The stated mixing schedule is one to two teaspoons per gallon weekly during vegetative growth and every other week during flowering, giving users stage-based guidance. That structure supports a planned feeding routine rather than an unspecified one-off supplement. The main fit consideration is program compatibility: buyers should be comfortable using Micro as one component of the named three-part system.

Skip it if you want a standalone micronutrient product rather than the second step of FoxFarm’s three-part feeding program.

FoxFarm Micro suits growers using Cultivation Nation who want stage-specific micronutrient feeding for established plants. Its clearest fit is within that three-part routine, so consider the program commitment before choosing it as a standalone supplement.

Listed on Amazon as: FoxFarm Cultivation Nation Micro Liquid Plant Fertilizer, 5-0-1 – Part 2 of FoxFarm 3-Part Feeding Program for Micronutrients – NPK Fertilizer for Established Plants & Flowering Cycle – 1 Pint

#7

7. Southern Ag PowerPak 20-20-20 1 lb

• Weight: 16 oz
• Form: Soluble Fertilizer

Best for: Balanced NPK with minor elements.

Why it ranks #7: Combines 20-20-20 NPK with chelated minor elements and lists use on houseplants, vegetables, flowers, shrubs, trees, and lawns.

A 20-20-20 NPK analysis paired with chelated minor elements makes Southern Ag PowerPak a broad-feeding option rather than a micronutrient-only supplement. The water-soluble fertilizer is listed for flowers, roses, vegetables, shrubs, trees, lawns, and houseplants, spanning many common planting areas.

PowerPak combines 20% nitrogen, 20% phosphorus, and 20% potassium with chelated minor elements, so the micronutrients come alongside substantial macronutrient content. The directions call for two teaspoons mixed into a gallon of water, then using that solution to water plants. This water-soluble format supports a prepared-liquid feeding routine across the listed plant types. Buyers seeking only micronutrients should account for its full 20-20-20 analysis when deciding whether it suits their feeding plan.

Skip it if you want micronutrients without adding a 20-20-20 NPK fertilizer to your feeding routine.

PowerPak suits growers who want chelated minor elements delivered with balanced NPK across a varied garden or houseplant collection. It is not the right fit when the aim is to add micronutrients without a full NPK feed.

Listed on Amazon as: Southern Ag PowerPak 20-20-20 Water Soluble Fertilizer with micronutrients (1 LB)

#8

8. Southern Ag PowerPak 20-20-20 5 lb

• Weight: 5 lb
• Form: Granules

Best for: Larger-format soluble feeding.

Why it ranks #8: The 5-pound size offers the same 20-20-20 NPK and chelated minor elements as the 1-pound option for broader feeding needs.

The five-pound format of Southern Ag PowerPak pairs chelated minor elements with a 20-20-20 NPK analysis for buyers preparing repeated feeds. It is listed for flowers, roses, vegetables, shrubs, trees, lawns, and houseplants, making its broad-use formula relevant across mixed plantings.

PowerPak supplies 20% each of nitrogen, phosphorus, and potassium alongside chelated minor elements. Its directions give a general mix of two teaspoons per gallon, with spray and drench rates also listed for specific applications, supporting different feeding approaches. The product is identified as granules, while the instructions describe mixing with water; users can prepare a solution for application. Its five-pound amount may suit ongoing use, but the substantial NPK content matters if micronutrients alone are the goal.

Skip it if you only want to supplement micronutrients without applying a 20-20-20 NPK fertilizer.

Choose this PowerPak format for repeated water-mixed feeding across varied plantings when both NPK and chelated minor elements are wanted. Its broad nutrient profile is a poor fit for a micronutrient-only correction.

Listed on Amazon as: Southern Ag PowerPak 20-20-20 Water Soluble Fertilizer with micronutrients (5 LB)

#9

9. TPS Nutrients Micronutrient Fertilizer

• Weight: 8 oz
• Form: Liquid

Best for: Flexible liquid feeding routines.

Why it ranks #9: Liquid formula is intended for indoor and outdoor plants and mentions root and foliage support, but its ingredient information only says NPK.

Compatibility with watering cans and hose-end sprayers is the practical draw of TPS NUTRIENTS Micronutrient Fertilizer, letting growers work the liquid into familiar watering or feeding routines. The formula is presented for indoor and outdoor plants, including containers, gardens, and raised beds.

TPS lists support for strong roots and healthy foliage, linking the product to both below- and above-ground plant development. Its liquid format is described as suitable for watering cans, hose-end sprayers, and feeding schedules, giving buyers multiple ways to include it in routine care. The stated settings span containers, gardens, and raised beds, as well as indoor and outdoor plants. The supplied details do not name individual micronutrients or give a dilution rate.

Skip it if you need a named nutrient analysis or a stated mixing rate; neither appears in the supplied product details.

TPS suits growers who want a liquid plant food that fits watering cans, sprayers, or scheduled feeding across containers and beds. Buyers selecting by specific micronutrient content should note that individual nutrients are not named here.

Listed on Amazon as: Micronutrient Fertilizer – Liquid Plant Food for Healthy Growth & Strong Root Development, 8 oz (250mL)

#10

10. Cz Garden 10-10-10 Fertilizer

• Weight: 4 lb
• Form: Granules

Best for: Resealable all-purpose granules.

Why it ranks #10: Granular 10-10-10 all-purpose plant food lists broad garden uses, but the supplied details do not identify specific micronutrients or their amounts.

A resealable, easy-pour pouch gives Cz Garden Supply 10-10-10 All Purpose Fertilizer a practical storage and handling feature for multi-use plant care. Its listed applications span indoor and outdoor plants, flower and food gardens, herbs, trees, and lawns, while directions call for spreading over soil and watering in.

The 10-10-10 all-purpose formula is positioned for a broad range of plants, including fruit and vegetable gardens, herbs, flowers, trees, and lawns. That breadth can simplify product selection for growers maintaining mixed plantings. Granules are spread evenly over the soil and watered in, a straightforward application that does not require a listed foliar spray process. The heavy-duty pouch is resealable, helping keep the remaining product stored between uses. The supplied details do not identify individual micronutrients or give a spreading rate.

Skip it if you need a named micronutrient analysis or measured application rate; neither is given in the supplied details.

Cz Garden Supply suits growers seeking an all-purpose granular feed for varied indoor and outdoor plantings, with resealable storage between applications. Choose another option if you need specified micronutrient contents or a stated spreading rate.

Listed on Amazon as: 10-10-10 All Purpose Fertilizer – Made in USA – Micronutrients Plant Food for Indoor/Outdoor Plants, Flower Gardens, Fruit & Vegetable Gardens, Trees & Lawns! (All Purpose Fertilizer 8LB)