Finding a controlled release fertilizer that suits your need and does its job well can be challenging. Overall, our tester reviews these controlled release fertilizer with giving ratings and marks for its durability, ease of setup and use. Also the controlled release fertilizer price will be fairly matched the product’s performance, plus with the attractive and sturdy design etc that comes with the product. We conducted hands-on testing for controlled release fertilizer and have the details guide and list provided below.
This is the ultimate buyers guide controlled release fertilizer.
The Best controlled release fertilizer
1
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor1 - Granular, Continuous Release Plant Fertilizer with 11 Essential Nutrients, 2 lbs.
9.8
Amazon.com
2
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor1 - Granular, Continuous Release Plant Fertilizer with 11 Essential Nutrients, 8 lbs.
9.6
Amazon.com
3
Southern Ag Osmocote Controlled Release Fertilizer 14-14-14, 5 LB Size: 5 LB
9.4
Amazon.com
4
10-10-10 Plant Fertilizer Slow Release - 10 10 10 All Purpose Granular Garden Fertilizer for Vegetables, Tomato, Arborvitae, Shrubs, Rose, Flowers, Fruit,...
9
Amazon.com
5
Osmocote Smart-Release Plant Food Flower & Vegetable - Continuous Release Plant Fertilizer for Vegetables and More, 8 lb.
8.3
Amazon.com
6
Miracle-Gro Shake 'N Feed All Purpose Plant Food - Outdoor and Indoor Plant Food for In-Ground and Containers, Feeds for up to 3 Months, 4.5 lbs.
8.2
Amazon.com
7
10-10-10 Plant Fertilizer Slow Release - 10 10 10 All Purpose Granular Garden Fertilizer for Vegetables, Tomato, Arborvitae, Shrubs, Rose, Flowers, Fruit,...
8
Amazon.com
8
Scotts All Purpose Flower and Vegetable Continuous Release Plant Food, For Outdoor In-Ground Plants, 3 lb.
8
Amazon.com
9
Bio-Active Plant Fertilizer Granular 6-5-6 Slow Release Carbon Enhanced Garden Fertilizer, Humic & Mycorrhizae – All Purpose Plant Food for Gardens, Indoor &...
8
Amazon.com
10
RAINFLOW 11.28 OZ Slow Release Fertilizer - Organic Plant Food All Purpose Plant Fertilizer for Succulents Cactus Orchid Bonsai and All Other Outdoor &...
7.8
Amazon.com
The Best controlled release fertilizer
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor1 - Granular, Continuous Release Plant Fertilizer with 11 Essential Nutrients, 2 lbs.
$13.68
$15.99
in stock
Amazon.com
Features
| Part Number | 2345012 |
| Model | 2345012 |
| Size | 2 lb. |
- CONTINUOUS RELEASE NUTRITION: Osmocote Smart-Release Plant Food Plus Outdoor & Indoor1 granular fertilizer contains 11 essential nutrients and feeds live plants up to 6 full months
- USE WITH VIRTUALLY ALL PLANTS: This plant food for houseplants, flowers, vegetables, trees, shrubs, roses, and more works in virtually all growing conditions both indoors and outdoors, in containers, raised beds, and in-ground garden.
- RESIN COATING: Each granule of Osmocote Plus Outdoor & Indoor1 is coated with a unique resin that controls nutritional release so plants get what they need when they need it
- NO-BURN PLEDGE: When used as directed, this Osmocote plant food outdoor and indoor will not burn your plants
- COVERAGE: One 2 lb. container of Osmocote Smart-Release Plant Food Plus indoor and outdoor plant food covers up to 75 sq. ft.
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor1 - Granular, Continuous Release Plant Fertilizer with 11 Essential Nutrients, 8 lbs.
$36.19
in stock
Ends in
Amazon.com
Features
| Part Number | 2345104 |
| Model | 2345104 |
| Color | color |
| Size | 8 lb. |
- CONTINUOUS RELEASE NUTRITION: Osmocote Smart-Release Plant Food Plus Outdoor & Indoor1 granular fertilizer contains 11 essential nutrients and feeds live plants up to 6 full months
- USE WITH VIRTUALLY ALL PLANTS: This plant food for houseplants, flowers, vegetables, trees, shrubs, roses, and more works in virtually all growing conditions both indoors and outdoors, in containers, raised beds, and in-ground garden.
- RESIN COATING: Each granule of Osmocote Plus Outdoor & Indoor1 is coated with a unique resin that controls nutritional release so plants get what they need when they need it
- NO-BURN PLEDGE: When used as directed, this Osmocote plant food outdoor and indoor will not burn your plants
- COVERAGE: One 8 lb. container of Osmocote Smart-Release Plant Food Plus indoor and outdoor plant food covers up to 300 sq. ft.
Southern Ag Osmocote Controlled Release Fertilizer 14-14-14, 5 LB Size: 5 LB
$22.66
$23.79
in stock
Amazon.com
Features
| Part Number | a2428 |
| Model | a2428 |
| Size | (Pack of 1) |
- Size: 5 LB
- Controlled Release Fertilizer.
- Continuous metering of nutrients for up to 4 months.
- USE ON: Potted plants, hanging baskets, flower beds and vegetable gardens.
- For large quantity discount consideration or to request a mixed multi-pack, please message us.
10-10-10 Plant Fertilizer Slow Release - 10 10 10 All Purpose Granular Garden Fertilizer for Vegetables, Tomato, Arborvitae, Shrubs, Rose, Flowers, Fruit,...
$14.99
in stock
Amazon.com
Features
| Part Number | FERT-001 |
| Model | 10 10 10 Fertilizer |
| Color | 10-10-10 Plant Fertilizer |
| Size | 1/2 quart |
- Balanced 10-10-10 Granular Fertilizer for Outdoor & Indoor Plants: All-purpose plant food with 10% Nitrogen, 10% Phosphorus, and 10% Potassium. Perfect for outdoor vegetable gardens, fruit trees, evergreens, shrubs, lawns, and flowers. Also great for potted plants and indoor gardening. One solution for all your plant needs!
- ⏳ Slow-Release Formula for Continuous Outdoor Feeding: Provides up to 8 weeks of sustained nutrition with fewer applications. Ideal for outdoor lawns, vegetable gardens, fruit trees, and flowering plants. Apply twice per season for gardens and three times per year for trees and shrubs. Less work, more growth!
- Promotes Strong Roots, Lush Growth, and Vibrant Outdoor Blooms: Phosphorus supports root health, Nitrogen fuels lush green leaves, and Potassium enhances plant resilience. Perfect for outdoor flowers, tomatoes, peppers, roses, evergreens, and shrubs. Enjoy thriving plants, colorful blooms, and abundant harvests!
- Easy-to-Apply Granules for Even Outdoor Coverage: Fine granules spread evenly for maximum soil absorption in outdoor gardens, lawns, and landscapes. Ideal for pines, oaks, banana trees, fig trees, and ornamentals. Just spread, water, and watch your outdoor garden flourish!
- ⚡ Quick-Release Nitrogen for Immediate Outdoor Results: Instant nitrogen boost for rapid growth, combined with slow-release feeding for lasting results. Perfect for outdoor grass lawns, evergreen trees, flowering plants, and vegetables. See your outdoor garden thrive quickly and sustainably!
Osmocote Smart-Release Plant Food Flower & Vegetable - Continuous Release Plant Fertilizer for Vegetables and More, 8 lb.
$26.18
$39.99
in stock
Amazon.com
Features
| Part Number | 277960 |
| Model | 277960 |
| Color | N |
| Size | 8 lb. |
- OSMOCOTE’S HIGHEST TOTAL NUTRIENT FORMULA: 14-14-14 NPK - favored for seasonal vegetables and perennials; use this plant food outdoors to promote strong roots as well as vigorous and bountiful above-ground growth.
- HOW TO USE: Use the included scoop to apply 1 scoopful per 4 sq. ft. and mix into the top 1-3 inches of soil; apply this vegetable and flower food to vegetable gardens and mulched areas around ornamental trees/shrubs, and in raised beds.
- OSMOCOTE QUALITY: Osmocote is the original slow-release plant food; decades of rigorous field testing confirm product effectiveness with hundreds of plant species in a variety of climate and soil conditions.
- OSMOCOTE’S SECRET: Soil temperature controls how Osmocote flower and vegetable plant food releases its nutrients, and how nutrients are taken up by the plant; replenishment and feeding are in natural harmony.
- OSMOCOTE IS MISTAKE-PROOF: Even if over-applied up to 3x the recommended rate, Osmocote does not ‘burn’ the plant.
- COVERAGE: 1 lb. of continous release fertilizer for vegetables and flowers covers 40 sq. ft. (approx. 6½ ft. x 6½ ft.); this 8 lb. container covers 320 sq. ft.
Miracle-Gro Shake 'N Feed All Purpose Plant Food - Outdoor and Indoor Plant Food for In-Ground and Containers, Feeds for up to 3 Months, 4.5 lbs.
$14.42
in stock
Amazon.com
Features
| Part Number | 3001910 |
| Model | 3001910 |
| Color | Brown/A |
| Size | 4.5 lb. |
- 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.
Bio-Active Plant Fertilizer Granular 6-5-6 Slow Release Carbon Enhanced Garden Fertilizer, Humic & Mycorrhizae – All Purpose Plant Food for Gardens, Indoor &...
$13.95
$19.95
in stock
Amazon.com
Features
| Part Number | GGPF - 200 |
| Size | 200 Grams |
- 3-in-1 Plant Superfood – A balanced 6-5-6 NPK combined with 24% active carbon, 5% humic acid, mycorrhizal fungi, and beneficial microbes to support soil biology, root development, and nutrient uptake going beyond basic plant food for full-spectrum plant nutrition.
- Slow-Release Granular Feeding – This advanced slow release plant fertilizer delivers steady nutrition over time with no spikes or burn when used as directed. Each homogenous prill contains complete nutrients for consistent even feeding ideal plant food for vegetable gardens, flower beds, and indoor or outdoor plants.
- Proven Results for Real Gardens – Proven and tested in real world gardens, Genius+ All Purpose BioActive Fertilizer is scientifically designed for raised beds, vegetables, fruits, herbs, and flowers. Supports stronger roots, healthier growth, and improved plant performance in real soil conditions.
- Clean Formula – No Sludge, PFAS, or Microplastics – Unlike many fertilizers, Genius+ All Purpose Fertilizer formula contains no biosolids, sewage sludge, PFAS, or plastic coatings. Third-party tested PFAS-free for a cleaner, more modern approach to plant nutrition.
- Easy-to-Use for All Plants – A versatile plant fertilizer for indoor and outdoor use, ideal for vegetables, flowers, houseplants, raised beds, trees, and shrubs. One simple formula designed to streamline plant care across your entire garden.
Scotts All Purpose Flower and Vegetable Continuous Release Plant Food, For Outdoor In-Ground Plants, 3 lb.
$10.48
in stock
Amazon.com
Features
| Part Number | 1009001 |
| Model | 300900 |
| Size | 3 lb |
- Scotts All Purpose Flower & Vegetable Continuous Release Plant Food promotes beautiful flowers and abundant harvests
- This flower and vegetable food provides continuous release nitrogen feeding for up to 2 months
- Use this all purpose plant food in in-ground gardens on most plant types, including flowers, annuals, perennials, vegetables, tomatoes, peppers, trees, and shrubs
- To apply plant food, sprinkle on the soil around your plants using the recommended rate on the label and rake into the top 1-3 inches of soil
- One 3 lb. bag of Scotts All Purpose Flower & Vegetable Continuous Release Plant Food feeds approximately 150 sq. ft. of garden area
10-10-10 Plant Fertilizer Slow Release - 10 10 10 All Purpose Granular Garden Fertilizer for Vegetables, Tomato, Arborvitae, Shrubs, Rose, Flowers, Fruit,...
$30.99
in stock
Amazon.com
Features
| Part Number | FERT-001 |
| Model | 10 10 10 Fertilizer |
| Color | 10-10-10 Plant Fertilizer |
| Size | 4 quarts |
- Balanced 10-10-10 Granular Fertilizer for Outdoor & Indoor Plants: All-purpose plant food with 10% Nitrogen, 10% Phosphorus, and 10% Potassium. Perfect for outdoor vegetable gardens, fruit trees, evergreens, shrubs, lawns, and flowers. Also great for potted plants and indoor gardening. One solution for all your plant needs!
- ⏳ Slow-Release Formula for Continuous Outdoor Feeding: Provides up to 8 weeks of sustained nutrition with fewer applications. Ideal for outdoor lawns, vegetable gardens, fruit trees, and flowering plants. Apply twice per season for gardens and three times per year for trees and shrubs. Less work, more growth!
- Promotes Strong Roots, Lush Growth, and Vibrant Outdoor Blooms: Phosphorus supports root health, Nitrogen fuels lush green leaves, and Potassium enhances plant resilience. Perfect for outdoor flowers, tomatoes, peppers, roses, evergreens, and shrubs. Enjoy thriving plants, colorful blooms, and abundant harvests!
- Easy-to-Apply Granules for Even Outdoor Coverage: Fine granules spread evenly for maximum soil absorption in outdoor gardens, lawns, and landscapes. Ideal for pines, oaks, banana trees, fig trees, and ornamentals. Just spread, water, and watch your outdoor garden flourish!
- ⚡ Quick-Release Nitrogen for Immediate Outdoor Results: Instant nitrogen boost for rapid growth, combined with slow-release feeding for lasting results. Perfect for outdoor grass lawns, evergreen trees, flowering plants, and vegetables. See your outdoor garden thrive quickly and sustainably!
RAINFLOW 11.28 OZ Slow Release Fertilizer - Organic Plant Food All Purpose Plant Fertilizer for Succulents Cactus Orchid Bonsai and All Other Outdoor &...
$7.99
in stock
Amazon.com
Features
| Part Number | LZH-Fertilizer-02 |
| Model | LZH-Fertilizer-02 |
| Color | Yellow |
- Balanced Nutrient Formula: This slow release fertilizer contains 14-13-13 NPK to provide comprehensive nutritional support to promote healthy plant growth and is suitable for various gardening and agricultural needs
- Organic Fertilizer for Plants: Our organic plant food is made with a special slow release technology that releases nutrients for up to 180 days, reducing the frequency of fertiliser applications and saving time and effort
- Slow Release Plant Fertilizer: This garden fertilizer not only enhances plant root development and loosens the soil, but also promotes flowering and fruiting, giving plants nutrition and protection
- Versatile Applications: Our all purpose plant fertilizer is suitable for orchids, succulents, cacti, vegetables and many other flowers and plants, providing balanced nutrients suitable for different kinds of plants and gardening projects
- Easy to Use: The granular fertilizer is easy to spread and mix, suitable for home gardening and large scale planting. Beginners and gardening enthusiasts can easily get started without complicated fertilizer application operations
The Video Review of Best controlled release fertilizer
Conclusion
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