Comparison: Best Miracle Gro Universal Liquid Plant Feed (Updated | Nov 11th)

That’s why we took a deep dive into Miracle-Gro’s Universal Liquid Plant Feed—the one product that seems to be in every gardener’s shed. Is it really the all-around champion it claims to be? We tested it across different plants, soil types, and growing conditions to see if it lives up to the hype—or if there’s a better option hiding in plain sight.

Product Comparison: Best Miracle Gro Universal Liquid Plant Feed

Auto-Mix Refills

4 Pack Liquafeed Refills All Purpose Fertilizer

4 Pack Liquafeed Refills All Purpose Fertilizer

Miracle-Gro
  • For all outdoor flowers, vegetables, trees, shrubs and lawns
  • No-mess concentrate automatically mixes plant food with water at the correct level
  • For use with Miracle-Gro LIQUAFEED garden feeder (sold separately)
  • 4 pack
  • 567 g (1.25 lb) each

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Starter Kit Bundle

Miracle-Gro LiquaFeed All Purpose Plant Food Advance Starter Kit, For Flowers, Vegetables, Trees and Shrubs, One 16 oz. Plant Food and One Feeder

Miracle-Gro LiquaFeed All Purpose Plant Food Advance Starter Kit, For Flowers, Vegetables, Trees and Shrubs, One 16 oz. Plant Food and One Feeder

Miracle-Gro
  • Grow plants twice as big compared to unfed plants with the Miracle-Gro LiquaFeed All Purpose Plant Food Advance Starter Kit
  • With this plant food and garden feeder set, feeding is as easy as watering!
  • Use this all-purpose plant food in in-ground gardens or outdoor containers and with most plant types, including flowers, vegetables, trees, and shrubs
  • To apply, attach LiquaFeed Feeder to your garden hose and insert LiquaFeed Plant Food bottle
  • This starter kit includes one Miracle-Gro Liquafeed Feeder and one 16 oz. bottle of Miracle-Gro LiquaFeed All Purpose Plant Food, which feeds up to 400 sq. ft. of garden

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Versatile Liquid Feed

Miracle-GRO 1001502 Liquid All Purpose Plant Food Concentrate, 12-4-8, 32-Ounce Bottle (2-Pack (32 Oz))

Miracle-GRO 1001502 Liquid All Purpose Plant Food Concentrate, 12-4-8, 32-Ounce Bottle (2-Pack (32 Oz))

Miracle-Gro
  • For Houseplants or In the Garden
  • Shake bottle well before each use. Measure amount based on the area of use for in the garden or houseplants. See label for full product instructions.
  • Feed While Watering
  • Miracle-Gro makes it easy to feed while watering. Add Miracle-Gro Liquid All Purpose Plant Food to a watering can then apply by thoroughly soaking the soil around each plant.
  • For Best Results – Apply every 7-14 days for spectacular results.

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Indoor Plant Boost

Miracle-Gro Indoor Plant Food, Liquid Plant Food for Houseplants, Snake Plants, Peace Lilies, Flowers, Vegetables, Herbs and More, 8 oz., 2-Pack

Miracle-Gro Indoor Plant Food, Liquid Plant Food for Houseplants, Snake Plants, Peace Lilies, Flowers, Vegetables, Herbs and More, 8 oz., 2-Pack

Miracle-Gro
  • Miracle-Gro Indoor Plant Food is formulated with nutrients your indoor plants need to flourish
  • This liquid plant food feeds plants instantly
  • Where to use: Use with all indoor container plants including houseplants, snake plants, croton, peace lilies, flowers, vegetables, and more
  • How to use: Apply this houseplant food directly to the soil using 1 pump for small pots and 2 for large pots, or mix 4 pumps of plant food with 1 quart of water and water as usual
  • What’s included: This bundle comes with two 8 oz. bottles of Miracle-Gro Indoor Plant Food

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Organic Duo Pack

Miracle-Gro Organic Plant Food, 32 oz. (2-Pack)

Miracle-Gro Organic Plant Food, 32 oz. (2-Pack)

Miracle-Gro
  • Miracle-Gro Organic Plant Food is made from plants for all plants for Successful Organic Gardening Made Attainable
  • Made from 94% plant-based fertilizer ingredients, this organic gardening product feeds plants instantly for healthier, more resilient plants (vs unfed plants, when used as directed)
  • Use with all plant types, including indoor or outdoor container plants and in-ground plants in gardens
  • To apply this liquid plant food, dilute with water per label directions and soak the soil around each plant; reapplications may be made to outdoor garden plants every 7-14 days or every 2 weeks to indoor plants
  • This bundle includes two 32 oz. containers of Miracle-Gro Organic Plant Food

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Plant-Based Organic

Miracle-Gro Organic Plant Food, Made from Plants for All Plants, Use with Indoor or Outdoor Container Plants and In-Ground Gardens, OMRI Listed, 32 oz.

Miracle-Gro Organic Plant Food, Made from Plants for All Plants, Use with Indoor or Outdoor Container Plants and In-Ground Gardens, OMRI Listed, 32 oz.

Miracle-Gro
  • Miracle-Gro Organic Plant Food is made from plants for all plants for Successful Organic Gardening Made Attainable
  • Made from 94% plant-based fertilizer ingredients, this organic gardening product feeds plants instantly for healthier, more resilient plants (vs unfed plants, when used as directed)
  • Use with all plant types, including indoor or outdoor container plants and in-ground plants in gardens
  • To apply this liquid plant food, dilute with water per label directions and soak the soil around each plant; reapplications may be made to outdoor garden plants every 7-14 days or every 2 weeks to indoor plants
  • This 32 oz. container of Miracle-Gro Organic Plant Food makes up to 10.75 gallons of diluted plant food

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Ready-Serve Singles

Miracle-Gro Pour & Feed Singles Ready-To-Use Liquid Plant Food – Pre-Measured Liquid Plant Fertilizer for Potted Plants, 2 oz. Singles

Miracle-Gro Pour & Feed Singles Ready-To-Use Liquid Plant Food - Pre-Measured Liquid Plant Fertilizer for Potted Plants, 2 oz. Singles

Miracle-Gro
  • Easy to use! No mixing, no measuring and no storage required
  • Use each pre-measured single to feed every 10-14 days
  • Designed to feed your 12 to 18-inch pot
  • Makes feeding your plants easy!
  • For use on different potted plant types

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High-Coverage Powder

Miracle-Gro Water Soluble All Purpose Plant Food, For All Indoor or Outdoor Plants, Roses, Flowers, Vegetables, Houseplants, Trees, and Shrubs, 1.5 lbs

Miracle-Gro Water Soluble All Purpose Plant Food, For All Indoor or Outdoor Plants, Roses, Flowers, Vegetables, Houseplants, Trees, and Shrubs, 1.5 lbs

Miracle-Gro
  • Feeds all plants: Miracle-Gro Water Soluble All Purpose Plant Food feeds all outdoor, in-ground and indoor plants, including roses, flowers, houseplants, vegetables, and trees
  • Promotes growth: This all-purpose plant food grows bigger, more beautiful plants (vs unfed plants) and starts working instantly to promote quick, beautiful results
  • NPK: 24-8-16 plant fertilizer contains Nitrogen (N), Phosphorus (P) and Potassium (K) which are key nutrients plants need to thrive
  • Application: For indoor plants, mix 1/2 tsp per gallon of water in a watering can; For outdoor plants, mix 1-1/2 tbsp per 1-1/2 gallon of water. Use with the Miracle-Gro Garden Feeder or any watering can
  • Coverage: One 1.5 lb. container of Miracle-Gro Water Soluble All Purpose Plant Food feeds approximately 600 sq. ft. of garden area

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All-Purpose Soluble

Miracle-Gro Water Soluble All Purpose Plant Food, Fertilizer for Indoor or Outdoor Flowers, Vegetables or Trees, 3 lbs.

Miracle-Gro Water Soluble All Purpose Plant Food, Fertilizer for Indoor or Outdoor Flowers, Vegetables or Trees, 3 lbs.

Miracle-Gro
  • Full of essential nutrients, it instantly feeds to grow bigger, more beautiful plants versus unfed plants
  • Feed every 1-2 weeks
  • Use with the Miracle-Gro Garden Feeder or any watering can
  • For all flowers, vegetables, trees, shrubs and houseplants
  • Safe for all plants, guaranteed not to burn when used as directed

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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Buying Guide

Buying Guide: Best Miracle Gro Universal Liquid Plant Feed

Application Method

  • Choose between pre‑measured singles, concentrate to mix with water, or feeder‑compatible bottles
  • Consider if you prefer feeding while watering or using a dedicated garden feeder
  • Check if the product requires dilution ratios or is ready‑to‑use

Plant Type Compatibility

  • Ensure the formula works for indoor houseplants, outdoor garden beds, or both
  • Look for NPK ratios suited to flowering versus leafy growth
  • Organic options are ideal for sensitive or edible plants

Concentration & NPK Ratio

  • Higher NPK (e.g., 24‑8‑16) promotes rapid foliage growth
  • Lower ratios (e.g., 12‑4‑8) are gentler for seedlings and indoor plants
  • Organic blends use plant‑based nutrients and may have lower NPK values

Packaging Size & Value

  • Larger containers (32 oz or 2‑pack) reduce per‑ounce cost for big gardens
  • Smaller 8‑oz bottles are convenient for occasional indoor use
  • Pre‑measured singles eliminate waste but increase per‑feed price

Feeder & Compatibility Extras

  • Some kits include a LiquaFeed garden feeder for hose‑connected dosing
  • Check if the product works with existing Miracle‑Gro feeder accessories
  • Look for no‑mess concentrate bottles that auto‑mix with water

FAQs

What should I consider when choosing a liquid plant food for both indoor and outdoor use?

Look at the nutrient ratio (N-P-K) to match your plant types, and check whether the formula is organic or synthetic. Verify if the product is pre‑mixed, concentrate, or requires a feeder, as this affects convenience and storage. Also compare coverage area and bottle size to gauge long‑term value.

How does the Miracle‑Gro LiquaFeed starter kit compare to buying the feeder and fertilizer separately?

The starter kit bundles a feeder and a 16‑oz. bottle that feeds up to 400 sq ft., offering a ready‑to‑use solution for new users. Purchasing refills like the 4‑pack LiquaFeed concentrates can be cheaper per ounce if you already own a feeder. The kit provides convenience, while separate purchases give flexibility for larger gardens.

Is there a benefit to choosing the organic plant food over the conventional liquid feed?

Organic formulas are made from 94 % plant‑based ingredients, which can improve soil health and reduce chemical buildup over time. Conventional feeds often have higher N‑P‑K ratios for rapid growth, but may not be suitable for organic gardening standards. Your choice should align with your gardening philosophy and the specific needs of your plants.

Which product offers the best value for large outdoor gardens?

The Miracle‑Gro Water Soluble All Purpose Plant Food (1.5 lb.) covers about 600 sq ft., providing a low cost per square foot for extensive beds. The 32‑oz. organic plant food makes roughly 10.75 gal of diluted feed, which is also economical for sizable plots. Compare the per‑area cost and consider whether you prefer organic or synthetic nutrients.

Can I use the same liquid feed for houseplants and garden beds?

Yes, many Miracle‑Gro products, such as the All Purpose Plant Food concentrate and the Indoor Plant Food, are formulated for both indoor containers and outdoor plants. Just follow the dilution instructions specific to each plant type; indoor plants typically need a weaker solution. Using a single product simplifies inventory and reduces confusion.

What are the advantages of pre‑measured Pour & Feed singles versus bulk concentrates?

Pre‑measured singles eliminate mixing and measuring, making them ideal for occasional feeders or small pots. Bulk concentrates, like the 4‑pack LiquaFeed refills, lower the cost per feed and are better for frequent watering of larger areas. Choose singles for convenience and concentrates for cost efficiency.

How often should I apply liquid fertilizer for optimal growth?

Most Miracle‑Gro liquid feeds recommend feeding every 7‑14 days, depending on plant type and growth stage. Indoor plants may benefit from the lower end of that range, while vigorous outdoor growers can handle the full two‑week interval. Consistent application ensures steady nutrient availability without over‑fertilizing.

Is a separate garden feeder necessary when using concentrate formulas?

Concentrates like the LiquaFeed refills are designed to work with a feeder that automatically mixes the correct amount of fertilizer with water, providing precise dosing. If you prefer manual mixing, you can add the concentrate directly to a watering can, but you must measure carefully. A feeder adds convenience and reduces the risk of under‑ or over‑application.

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