Comparison: Best Miracle Gro Liquid Plant Fertilizer (Updated | Nov 11th)
We’ve done the digging (and the watering) to compare the top Miracle-Gro liquid fertilizers, so you don’t have to guess. Whether you’re growing lush tomatoes, vibrant flowers, or keeping houseplants happy, we’ll help you pick the perfect feed to turn your green dreams into reality—no PhD in botany required.
- Best for indoor boost pack: Miracle-Gro Indoor Plant Food
- Best for all-purpose concentrate: Miracle-GRO 1001502 Liquid All Purpose Plant Food Concentrate
- Best for feeder refill pack: 4 Pack Liquafeed Refills All Purpose Fertilizer
- Best for organic duo pack: Miracle-Gro Organic Plant Food
- Best for plant-based liquid: Miracle-Gro Organic Plant Food
- Best for versatile soluble feed: Miracle-Gro Water Soluble All Purpose Plant Food
- Best for root starter boost: Miracle-Gro Quick Start Planting and Transplant Starting Solution
- Best for high npk formula: Miracle-Gro Water Soluble All Purpose Plant Food
- Best for feeder kit advantage: Miracle-Gro LiquaFeed All Purpose Plant Food Advance Starter Kit
- Best for tropical foliage fuel: Miracle-Gro Tropical Houseplant Food – Liquid Fertilizer for Tropical Houseplants
Product Comparison: Best Miracle Gro Liquid Plant Fertilizer
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 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
Miracle-GRO 1001502 Liquid All Purpose Plant Food Concentrate, 12-4-8, 32-Ounce Bottle (2-Pack (32 Oz))
- 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.
4 Pack Liquafeed Refills All Purpose Fertilizer
- 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
Miracle-Gro Organic Plant Food, 32 oz. (2-Pack)
- 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
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 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
Miracle-Gro Water Soluble All Purpose Plant Food, Fertilizer for Indoor or Outdoor Flowers, Vegetables or Trees, 3 lbs.
- 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
Miracle-Gro Quick Start Planting and Transplant Starting Solution, For Flower and Vegetable Plants, Concentrate Mix with Water, 48 oz.
- Miracle-Gro Quick Start Planting & Transplant Starting Solution gives transplants the nutrients they need to thrive
- This plant starting solution improves root growth for faster blooms (vs unfed plants)
- Use this liquid plant food with seedlings, flowers, vegetables, trees, and other plants when planting or transplanting
- Apply this liquid concentrate by filling the cap to the 1st line and mixing with 1 gallon of water; pour solution around new plantings and repeat application in 7 days
- This 48 oz. bottle of Miracle-Gro Quick Start Planting & Transplant Starting Solution covers approximately 150 sq. ft. of planting area
Miracle-Gro Water Soluble All Purpose Plant Food, For All Indoor or Outdoor Plants, Roses, Flowers, Vegetables, Houseplants, Trees, and Shrubs, 1.5 lbs
- 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
Miracle-Gro LiquaFeed All Purpose Plant Food Advance Starter Kit, For Flowers, Vegetables, Trees and Shrubs, One 16 oz. Plant Food and One Feeder
- 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
Miracle-Gro Tropical Houseplant Food – Liquid Fertilizer for Tropical Houseplants, 8 fl. oz., 2-Pack
- Feed your tropical plants with Miracle-Gro Tropical Houseplant Food to promote lush foliage
- Formulated with micronutrients including magnesium, manganese, copper, iron, and zinc
- Starts feeding instantly
- Apply once per week while watering during the spring and summer months
- Safe for all tropical plants, including spider plants, ZZ plants, snake plants, croton, pothos, monstera, fiddle-leaf figs, and more
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
FAQs
What factors should I consider when choosing a Miracle‑Gro liquid fertilizer for indoor plants?
Look at the nutrient formulation (N‑P‑K ratio), whether the product is organic or synthetic, and the recommended dosage for pot size. Indoor formulas often come in smaller bottles with lower concentration to avoid root burn. Also check if the fertilizer includes micronutrients that benefit foliage, such as iron or magnesium.
How does the Miracle‑Gro Indoor Plant Food compare to the Organic Plant Food in terms of value?
The Indoor Plant Food comes in two 8 oz bottles, while the Organic Plant Food is sold as a 2‑pack of 32 oz containers, giving you more liquid for a lower price per ounce. However, the organic version is 94 % plant‑based and may appeal to eco‑conscious shoppers, whereas the indoor formula is a conventional synthetic blend. Consider whether you prioritize cost per volume or organic ingredients.
Which product is best for feeding both indoor and outdoor plants?
Miracle‑Gro Liquid All Purpose Plant Food Concentrate (12‑4‑8) is versatile enough for houseplants and garden beds, and it can be mixed in a watering can for easy application. The Water Soluble All Purpose Plant Food also works for indoor and outdoor use, but it requires measuring teaspoons or tablespoons. Choose the concentrate if you prefer a single bottle that can be diluted to any volume.
Is there a noticeable performance difference between the regular and the Tropical Houseplant Food?
Tropical Houseplant Food adds a suite of micronutrients like magnesium, manganese, copper, iron, and zinc, which can enhance the deep green foliage of tropical species. The regular indoor formula provides the basic macro nutrients but lacks those extra micronutrients. If you grow many tropical varieties, the specialized formula may produce richer leaf color and growth.
How do the refill packs (LiquaFeed Refills) affect long‑term cost?
The 4‑pack LiquaFeed Refills provides 567 g (1.25 lb) each, designed for use with a separate LiquaFeed feeder, which reduces waste by mixing only what you need. Because you buy concentrate only, you typically spend less per gallon of diluted fertilizer compared with pre‑mixed bottles. This option is most cost‑effective for gardeners who have a feeder system and need large volumes.
What is the recommended feeding schedule for these liquid fertilizers?
Most Miracle‑Gro liquid feeds suggest applying every 7–14 days, with indoor plants often on the shorter end of that range. The Quick Start Planting Solution recommends an initial application at planting and a follow‑up after 7 days. Consistent, regular feeding ensures steady nutrient availability and promotes healthier growth.
Do I need any special equipment to use the LiquaFeed or Liquid All Purpose products?
LiquaFeed products are intended for use with a dedicated LiquaFeed garden feeder, which attaches to a hose and automatically mixes concentrate with water. The Liquid All Purpose concentrate can be added to any watering can or garden feeder, so no special equipment is required. Choose LiquaFeed if you want a hands‑free, precise mixing system.
How important is the N‑P‑K ratio when selecting a Miracle‑Gro fertilizer?
The N‑P‑K ratio indicates the balance of nitrogen (leaf growth), phosphorus (root development), and potassium (overall vigor). A higher nitrogen ratio, like the 12‑4‑8 concentrate, is great for foliage‑heavy plants, while a more balanced ratio suits flowering or fruiting plants. Match the ratio to your plant’s growth stage for optimal results.