Nourishing your plants with the right fertilizer is crucial for a thriving garden. A well-chosen product provides essential nutrients that promote healthy growth, abundant blooms, and bountiful harvests. Understanding the different types and their applications will help you select the best option for your specific gardening needs.
Looking for the best Garden Fertilizers?
Discover now our comparison of the best Garden Fertilizers. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Garden Fertilizers are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Garden Fertilizers in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
SaleNo. 1
Miracle-Gro Shake 'N Feed All Purpose Plant Food - Outdoor and Indoor Plant Food for In-Ground and Containers...
- 3 MONTHS OF FEEDING: Miracle-Gro Shake 'N Feed All Purpose Plant Food feeds plants for up to 3 months, and nourishes above and below the soil
- GROW STRONGER PLANTS: This plant food contains vital micronutrients to grow stronger, vibrant, and more productive plants (vs unfed plants)
- FOR ALL PLANTS: Use this all-purpose plant food outdoor or indoor to feed container plants or plants in outdoor in-ground and raised bed gardens, including flowers, vegetables, and herbs
- APPLICATION: Apply this continuous release garden product evenly onto the soil and work into the top 1-3 inches of soil for in-ground plants, or lightly work into the soil of established container plants; water to start feeding; reapply every 3 months
- NOURISHES ABOVE & BELOW THE SOIL: Indoor and outdoor plant food contains natural ingredients to feed soil microbes that break down the ingredients into nutrients that support root strength and development which increases water efficiency
- COVERAGE: One 4.5 lb. container of Miracle-Gro Shake 'n Feed All Purpose Plant Food feeds up to 180 sq. ft.
−30%
$14.42
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SaleNo. 2
Miracle-Gro Water Soluble All Purpose Plant Food - Fertilizer For All Indoor or Outdoor Plants including...
- FEEDS ALL PLANTS: Miracle-Gro Water Soluble All Purpose Plant Food is a plant fertilizer that feeds all outdoor, in-ground and indoor plants, including roses, flowers, houseplants, vegetables, and trees
- PROMOTES GROWTH: Use this all-purpose plant food outdoors and indoors to grow bigger, more beautiful plants (vs unfed plants); starts working instantly to promote quick, beautiful results
- NPK: 24-8-16 outdoor and indoor plant food contains Nitrogen (N), Phosphorus (P) and Potassium (K) which are key nutrients plants need to thrive
- APPLICATION: To use as plant food indoors, mix 1/2 tsp per gallon of water in a watering can; to feed outdoor plants, mix 1-1/2 tbsp per 1-1/2 gallon of water in any watering can or use with the Miracle-Gro Garden Feeder
- COVERAGE: One 3 lb. container of Miracle-Gro Water Soluble All Purpose Plant Food can be used as an outdoor and indoor plant food for houseplants, vegetables, flowers, trees, roses and more; feeds approximately 1,200 sq. ft. of garden area
- Miracle Gro all purpose plant food is water soluble
- Contains chelated iron and five other trace elements plus soil penetrant
- Ideal for all types of plants
- Works instantly for quick, beautiful results
- Available in 3-pound pack
−25%
$11.99
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No. 3
Scotts Turf Builder Weed and Feed3 - Weed Killer Plus Lawn Fertilizer, Controls Dandelion and Clover, Grass...
- WEED KILLER PLUS LAWN FOOD: Scotts Turf Builder Weed & Feed3 weed killer plus fertilizer for grass kills existing listed weeds and feeds to thicken your lawn and crowd out future weeds
- WEED CONTROL FOR LAWNS: These weed killer plus lawn fertilizer granules control over 50 listed lawn weeds, including clover, dandelion, plantain, morningglory, chicory, eveningprimrose, and purslane
- WEED AND FEED FOR LAWNS: Apply this combination weed control and lawn food to your wet lawn when weeds are actively growing and daytime temperatures are consistently between 60°F and 90°F; don't apply more than 2X per year
- USE ON LISTED GRASS TYPES: Apply this lawn care product to Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass (temporary discoloration may occur on some grasses)
- DO NOT USE ON: Do not use this weed killer for lawns on St. Augustinegrass (including Floratam), Dichondra, Lippia, Carpetgrass, and Bentgrass lawns
$57.79
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SaleNo. 4
Miracle-Gro Water Soluble All Purpose Plant Food - Fertilizer For All Indoor or Outdoor Plants including...
- FEEDS ALL PLANTS: Miracle-Gro Water Soluble All Purpose Plant Food is a plant fertilizer that feeds all outdoor, in-ground and indoor plants, including roses, flowers, houseplants, vegetables, and trees
- PROMOTES GROWTH: Use this all-purpose plant food outdoors and indoors to grow bigger, more beautiful plants (vs unfed plants); starts working instantly to promote quick, beautiful results
- NPK: 24-8-16 outdoor and indoor plant food contains Nitrogen (N), Phosphorus (P) and Potassium (K) which are key nutrients plants need to thrive
- APPLICATION: To use as plant food indoors, mix 1/2 tsp per gallon of water in a watering can; to feed outdoor plants, mix 1-1/2 tbsp per 1-1/2 gallon of water in any watering can or use with the Miracle-Gro Garden Feeder
- COVERAGE: One 1.5 lb. container of Miracle-Gro Water Soluble All Purpose Plant Food can be used as an outdoor and indoor plant food for houseplants, vegetables, flowers, trees, roses and more; feeds approximately 600 sq. ft. of garden area
−21%
$8.29
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No. 5
Brut Organic Worm Castings for Plants 5 LB – Natural Nutrients, Fertility Builder, Plant Food for Potting...
- SUPERCHARGE YOUR GARDEN: Elevate your plants' growth with premium organic Brut Worm Castings. Our certified organic formula guarantees optimal nutrition for your indoor and outdoor plants.
- PURE ORGANIC GOODNESS: Made with certified organic ingredients, our worm castings are raised indoors in containers, ensuring unparalleled purity and effectiveness for your plants’ health.
- LUSH & VIBRANT PLANTS: Watch your plants thrive with mineral-rich Brut Worm Castings. Experience lush greenery, vibrant blooms, and bountiful harvests—naturally nourishing your plants from root to leaf.
- BORN FROM FAMILY CARE: As a family-owned business, we take pride in offering the finest organic castings. Every batch is carefully crafted to nurture your plants as if they were our own.
- CERTIFIED ORGANIC: Our castings are OMRI and CDFA listed, representing true organic excellence and bringing the power of nature’s nutrients directly to your plants’ roots. Eco sustainable resorce for your gardening enjoyment!
No. 6
10-10-10 General All Purpose Fertilizer for Flowers and Vegetable Beds - Raised Garden Beds - Safe for Fruits...
- Balanced Nutrition: Contains an even 10% Nitrogen, 10% Phosphorus, and 10% Potassium in each granule to deliver consistent, balanced feeding that promotes deep roots, steady vegetative growth, and abundant flowering or fruiting across a wide range of...
- Promotes Soil Health: Improves the fertility and biological health of your soil over time by encouraging beneficial microorganisms that naturally support strong, resilient plants and help retain moisture and nutrients where they’re needed most.
- Safe & Effective: Formulated to be safe for use on fruits, vegetables, herbs, grass, and ornamental plants when applied properly, making it ideal for gardeners who want to grow healthy food and maintain attractive landscapes without compromise.
- All-Season Performance: Suitable for early spring soil preparation, midseason growth support, and fall garden replenishment, this fertilizer adapts to your planting schedule and provides dependable nutrition through every stage of the growing cycle.
- Easy to Use for Consistent Results: Simply broadcast evenly over the soil surface, work gently into the top few inches, and water thoroughly. Clear instructions make application simple whether you’re feeding raised beds, flower borders, or large lawn...
SaleNo. 7
Burpee Bone Meal Fertilizer | Add to Potting Soil | Strong Root Development | OMRI Listed for Organic...
- STRONGER ROOT DEVELOPMENT: Bone Meal is a natural source of vital, readily available organic nitrogen, phosphorus and calcium that promotes strong plant roots, vibrant blooms and more delicious vegetables. Helps to enhance your plants throughout the...
- ADD TO SOIL: Add to soil or potting mix during seed starting or at any time prior to harvest to fuel strong roots and early, healthy plant growth. Bone meal fertilizer breaks down slowly, releasing nitrogen for robust growth throughout the season. Follow...
- ORGANIC CERTIFIED: OMRI listed for organic gardening, Bone Meal is ideal for new bedding plants, giving established home flower gardens a boost, and keeping patio containers looking their best and brightest. Helps naturally deter rabbits from your garden.
- IDEAL FOR FALL BULB PLANTING: Bone meal naturally promotes healthy growth of root and bulb crops and has a fine granular consistency for easy spreading. You can also use when planting flowering bulbs in the fall, such as tulips. Plus, it's Made in the...
- Since 1876: Generations of customers have trusted Burpee to deliver the highest quality products and service. Gardeners rely on Burpee for accurate plant information and how-to tips that make gardening easier and more successful. Let’s grow together!
−16%
$10.95
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SaleNo. 8
Pennington Water Soluble All Purpose Plant Food 20-10-20-1.5 lb
- Water soluble plant food mix with a measuring scoop.
- Wide mouth jar for easy scooping without the mess
- Formulated to keep the product dry and free flowing
- A foam seal on the lid conserves freshness
- All purpose plant food for bigger, more bountiful fruits and blooms vs. unfed
- Safe for all plants - when used according to to label dilution
- For feeding plants including fruits, vegetables and flowers. Guaranteed to grow your plants
- Apply every 7-14 days or as needed throught the growing season
- For new and established plants
- Simply scoop plant food into watering can, add water, and apply Follow application rates listed on container for best results
−28%
$6.48
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SaleNo. 9
Farmer’s Secret Soil Revitalizer (32oz) - Organic (OMRI Listed) Dirt Health Booster - Liquid Compost Soil...
- Feed the soil not the plants - stimulate microbial activity in your soil and boost probability of success with all types of plants… like composting but faster
- For best results, apply monthly throughout the growing season, especially in the fall and spring
- No synthetic chemicals - main ingredient in this product is activated humics derived from organic sources (OMRI certified organic)
- Concentrated formula - simply dilute at a ratio of 1 oz to 1 gallon and spray/pour on your soil
- Farmer’s Secret products are made with pride in Kentucky and puts the know-how of award-winning farmers into your hands. Get in on the Secret!
SaleNo. 10
Miracle-Gro Indoor Plant Food for All Plants, Liquid Plant Food for Houseplants, Flowers, Vegetables, Herbs...
- Miracle-Gro Indoor Plant Food for All Plants contains nutrients for healthier, stronger plants (vs unfed when used as directed)
- This liquid plant food feeds plants instantly to help grow healthy houseplants
- Use with all indoor container plants including houseplants, flowers, vegetables, herbs, and more
- This houseplant food can be applied directly to the soil then watered or mixed in 1 quart of water to feed while watering; reapply every 2 weeks
- This bundle comes with two 8 fl. oz. bottles of Miracle-Gro Indoor Plant Food for All Plants; for more spectacular results, use with Miracle-Gro Indoor Potting Mix for All Plants
−10%
$12.17
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Last update on 2026-04-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Garden Fertilizers
Understanding Fertilizer Types
Fertilizers are broadly categorized into two main types: synthetic and organic. Synthetic fertilizers are chemically manufactured and offer precise nutrient ratios, leading to rapid plant uptake. Organic fertilizers are derived from natural sources like compost, manure, or bone meal, releasing nutrients slowly and improving soil structure over time. Both have their advantages depending on your gardening goals and soil conditions.NPK Ratios Explained
Fertilizer packaging displays an NPK ratio, representing the percentage by weight of Nitrogen (N), Phosphorus (P), and Potassium (K). Nitrogen promotes leafy green growth, Phosphorus aids in root development and flowering, and Potassium supports overall plant health and disease resistance. A balanced fertilizer has similar numbers (e.g., 10-10-10), while specialized formulas cater to specific plant needs, such as high-nitrogen for lawns or high-phosphorus for flowering plants.Granular vs. Liquid Fertilizers
Granular fertilizers are small pellets or granules that are spread around plants and watered in. They offer slow-release nutrition over an extended period, reducing the frequency of application. Liquid fertilizers are concentrated solutions that are diluted with water and applied during watering. They provide nutrients immediately to the plant, making them ideal for quick correction of deficiencies or for foliar feeding.Choosing the Right Fertilizer for Your Plants
Consider what you are growing. Vegetables often benefit from a balanced or slightly higher nitrogen fertilizer early on, transitioning to one with more phosphorus and potassium for fruiting. Flowering plants may need a formula higher in phosphorus, while lawns thrive on nitrogen-rich options. For established trees and shrubs, a slow-release, balanced fertilizer applied annually is often sufficient. Always read the product label for specific application rates and plant suitability.Frequently Asked Questions
What is the difference between organic and synthetic fertilizers?
Organic fertilizers are derived from natural materials and release nutrients slowly, improving soil health. Synthetic fertilizers are chemically produced for precise nutrient delivery and faster results.
What does the NPK ratio on a fertilizer bag mean?
The NPK ratio indicates the percentage of Nitrogen (N), Phosphorus (P), and Potassium (K) in the fertilizer. These are the three primary macronutrients essential for plant growth.
When should I use liquid fertilizer versus granular fertilizer?
Liquid fertilizers are best for quick nutrient boosts or correcting deficiencies, as they are absorbed rapidly. Granular fertilizers provide a slower, more sustained release of nutrients over time.
How often should I fertilize my garden?
Fertilizing frequency depends on the type of fertilizer used and the plants you are growing. Slow-release options may only need application a few times a year, while liquid fertilizers might be applied more often during the growing season.
Can I over-fertilize my plants?
Yes, over-fertilizing can damage plants by burning their roots or causing nutrient imbalances. Always follow the recommended application rates on the fertilizer packaging.
Do I need different fertilizers for different types of plants?
Yes, different plants have varying nutrient needs. For example, flowering plants often benefit from higher phosphorus, while leafy greens need more nitrogen.