Best Fertilizer for Potted Plants Outdoors in 2025
Updated on August 2025
#1
Recommended
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- Contains 11 essential nutrients for optimal plant growth
- Provides up to 6 months of nourishment with 15-9-12 NPK granules
- Suitable for a wide range of indoor and outdoor plants, including potted and garden varieties
- Application is easy: mix 1 scoop per 2-gallon pot or 4 sq. ft. into the top 1-3 inches of soil, watering regularly and reapplying biannually
- An 8 lb. container covers approximately 300 sq. ft. of garden area
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- Contains 11 essential nutrients for optimal plant growth
- Provides up to 6 months of nourishment with 15-9-12 NPK granules
- Suitable for a wide range of indoor and outdoor plants, including potted and garden varieties
- Application is easy: mix 1 scoop per 2-gallon pot or 4 sq. ft. into the top 1-3 inches of soil, watering regularly and reapplying biannually
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#2
Value for Money
25% Off
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- High phosphorus content promotes blooming in plants
- Recommended feeding every 1-2 weeks for optimal growth
- Instantly feeds plants with water-soluble formula
- Suitable for outdoor flowers, fruiting plants, and container gardens
- Safe for plants when used as directed, preventing burning
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- High phosphorus content promotes blooming in plants
- Recommended feeding every 1-2 weeks for optimal growth
- Instantly feeds plants with water-soluble formula
- Suitable for outdoor flowers, fruiting plants, and container gardens
- Safe for plants when used as directed, preventing burning
#3
13% Off
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- Feeds plants for up to 3 months, nourishing both above and below the soil
- Contains essential micronutrients for stronger and more productive plants
- Suitable for a wide variety of plants, including flowers, vegetables, and herbs, both indoor and outdoor
- Easily applied by working into the top 1-3 inches of soil and watering to activate
- Regular reapplication every 3 months promotes sustained growth throughout the season
- Formulated with natural ingredients to support plant health and soil nourishment
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- Feeds plants for up to 3 months, nourishing both above and below the soil
- Contains essential micronutrients for stronger and more productive plants
- Suitable for a wide variety of plants, including flowers, vegetables, and herbs, both indoor and outdoor
- Easily applied by working into the top 1-3 inches of soil and watering to activate
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#4
28% Off
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- Contains essential nutrients that promote healthy plant growth
- Recommended feeding every 1-2 weeks
- Compatible with Miracle-Gro Garden Feeder and watering cans
- Suitable for all types of flowers, vegetables, trees, shrubs, and houseplants
- Safe for use on all plants when applied as directed, with no risk of burning
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- Contains essential nutrients that promote healthy plant growth
- Recommended feeding every 1-2 weeks
- Compatible with Miracle-Gro Garden Feeder and watering cans
- Suitable for all types of flowers, vegetables, trees, shrubs, and houseplants
- Safe for use on all plants when applied as directed, with no risk of burning
#5
5% Off
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- Ready-to-use plant food that requires no preparation
- Apply directly to the soil without mixing with water
- Provides immediate nourishment for all potted plants
- Recommended feeding every 1-2 weeks
- Suitable for both indoor and outdoor container plants
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- Ready-to-use plant food that requires no preparation
- Apply directly to the soil without mixing with water
- Provides immediate nourishment for all potted plants
- Recommended feeding every 1-2 weeks
- Suitable for both indoor and outdoor container plants
#6
14% Off
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- Fortified with 11 essential nutrients
- Compatible with a wide range of plant varieties and growing conditions
- Provides nourishment for up to 6 months
- Suitable for use on potted plants, both indoors and outdoors
- Guaranteed no-burn when applied as directed
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- Fortified with 11 essential nutrients
- Compatible with a wide range of plant varieties and growing conditions
- Provides nourishment for up to 6 months
- Suitable for use on potted plants, both indoors and outdoors
- Guaranteed no-burn when applied as directed
#7
31% Off
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- Feeds plants for up to 3 months, nourishing soil and roots
- Contains calcium for stronger cell walls, enhancing fruit and vegetable quality
- Suitable for vegetable, fruit, and tomato plants in-ground or in containers
- Apply evenly to the soil, working into the top 1-3 inches, and water to activate
- Reapply every 3 months and maintain regular watering for optimal growth
- Includes natural ingredients for improved plant nourishment and yield
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- Feeds plants for up to 3 months, nourishing soil and roots
- Contains calcium for stronger cell walls, enhancing fruit and vegetable quality
- Suitable for vegetable, fruit, and tomato plants in-ground or in containers
- Apply evenly to the soil, working into the top 1-3 inches, and water to activate
- Reapply every 3 months and maintain regular watering for optimal growth
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#8
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- Promotes substantial plant growth, potentially doubling size compared to unfed plants
- Convenient pre-measured packets eliminate mess and simplify feeding
- Suitable for a variety of plants including flowers, vegetables, and houseplants, both indoors and outdoors
- Easy application method: mix with water in a watering can and apply every 7-14 days
- Includes 24 packets for extended feeding
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- Promotes substantial plant growth, potentially doubling size compared to unfed plants
- Convenient pre-measured packets eliminate mess and simplify feeding
- Suitable for a variety of plants including flowers, vegetables, and houseplants, both indoors and outdoors
- Easy application method: mix with water in a watering can and apply every 7-14 days
- Includes 24 packets for extended feeding
#9
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- Provides fast-acting and long-lasting nutrition for various types of plants including houseplants, flowers, and container plants.
- Recommended application every 6-8 weeks for ongoing fertilization.
- Contains a balanced 5-5-5 nutrient formula for enhanced growth, blooming, and strong roots.
- Features TruSpike technology for easy insertion without breakage or residue.
- Enhances plant color, bloom abundance, and foliage health while supporting root development and stress resilience.
- Pre-measured spikes release nutrients directly into the root zone, promoting robust plant growth and prolific blooms.
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- Provides fast-acting and long-lasting nutrition for various types of plants including houseplants, flowers, and container plants.
- Recommended application every 6-8 weeks for ongoing fertilization.
- Contains a balanced 5-5-5 nutrient formula for enhanced growth, blooming, and strong roots.
- Features TruSpike technology for easy insertion without breakage or residue.
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#10
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- Continuous action fertilizer simplifies usage compared to organic options; simply remove the cap and insert into the pot.
- General purpose fertilizer enhances plant health by reducing transplant shock, boosting blooms, and strengthening seedlings for increased fruitfulness.
- Self-contained all-in-one plant food includes essential nutrients such as magnesium, calcium, boron, and trace minerals for optimal growth.
- Safe for a variety of flowering plants including azaleas, orchids, geraniums, and succulents, making it versatile for different species.
- Instantly nourishes plants without the need for mixing with water or additional protectors, offering convenience in feeding.
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- Continuous action fertilizer simplifies usage compared to organic options; simply remove the cap and insert into the pot.
- General purpose fertilizer enhances plant health by reducing transplant shock, boosting blooms, and strengthening seedlings for increased fruitfulness.
- Self-contained all-in-one plant food includes essential nutrients such as magnesium, calcium, boron, and trace minerals for optimal growth.
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