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Slow Release Fertilizer For Flowers

9 Best Slow Release Fertilizer For Flowers 2025 in the United States

Name: Osmocote Smart-Release Plant Food Plus Outdoor & Indoor, 8 lb.
Brand: Osmocote
Price: 34.99 USD
Availability: InStock

From leading brands and best sellers available on the web.

Omri Listed Fish & Kelp Fertilizer for Plants (55 Gallon) - Organic Fertilizer for Vegetables, Trees, Lawns, Shrubs, Flowers, Seeds & Plants - Hydrolyzed Fish and Seaweed Blend

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Winner

Osmocote

Osmocote Smart-Release Plant Food Plus Outdoor & Indoor, 8 lb.

9.9

score

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Omri Listed Fish & Kelp Fertilizer for Plants (55 Gallon) - Organic Fertilizer for Vegetables, Trees, Lawns, Shrubs, Flowers, Seeds & Plants - Hydrolyzed Fish and Seaweed Blend

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Osmocote

Osmocote Smart-Release Plant Food Flower & Vegetable, 8 lb.

9.8

score

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SeedRanch

Osmocote 14-14-14 Classic Slow Release Fertilizer - 50 Lbs.

9.6

score

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Miracle-Gro

Miracle-Gro Performance Organics Blooms Plant Nutrition Granules - Plant Food with Natural & Organic Ingredients, for Flowering Plants, 2.5 lbs.

9.3

score

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Jobe's Organics

Jobe’s Fertilizer Spikes for Flowering Plants, 10-10-4 Time Release Fertilizer, 50 Spikes per Package (2 Pack)

9.0

score

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Root 98 Warehouse

Southern Ag Osmocote Controlled Release Fertilizer 14-14-14, 5 LB Size: 5 LB

8.7

score

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Miracle-Gro

Miracle-Gro Shake 'N Feed Flowering Trees and Shrubs Plant Food

8.4

score

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Scotts

Scotts All Purpose Flower & Vegetable Continuous Release Plant Food, Plant Fertilizer, 3 lbs. (6-Pack)

8.1

score

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Schultz

Schultz Spf48410 Rose & Flower Slow-Release Plant Food, 15-5-15, 3.5 Lbs

7.8

score

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Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants

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Arber Nutrition & Health Starter Set - Organic Plant Nourishment, Protection & Growth Boost - Liquid Concentrate for Gardens (Organic Nutrition & Health Set)

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Omri Listed Fish & Kelp Fertilizer for Plants

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Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Enhance Aroma and Flavor of Plants – Potting Soil for Indoor Plants – Energy for Plants – 8 Ounce

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𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 All-Purpose 20-20-20 Liquid Fertilizer Spray for Lawns, Grass, Plants, Vegetables, Fruits & Flowers | 20-20-20 Liquid Fertilizer for Indoor and Outdoor Plants (32 OZ)

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9 Best Slow Release Fertilizer For Flowers 2025 in the United States

Omri Listed Fish & Kelp Fertilizer for Plants (55 Gallon) - Organic Fertilizer for Vegetables, Trees, Lawns, Shrubs, Flowers, Seeds & Plants - Hydrolyzed Fish and Seaweed Blend

Osmocote Smart-Release Plant Food Plus Outdoor & Indoor, 8 lb.

Omri Listed Fish & Kelp Fertilizer for Plants (55 Gallon) - Organic Fertilizer for Vegetables, Trees, Lawns, Shrubs, Flowers, Seeds & Plants - Hydrolyzed Fish and Seaweed Blend

Osmocote Smart-Release Plant Food Flower & Vegetable, 8 lb.

Osmocote 14-14-14 Classic Slow Release Fertilizer - 50 Lbs.

Miracle-Gro Performance Organics Blooms Plant Nutrition Granules - Plant Food with Natural & Organic Ingredients, for Flowering Plants, 2.5 lbs.

Jobe’s Fertilizer Spikes for Flowering Plants, 10-10-4 Time Release Fertilizer, 50 Spikes per Package (2 Pack)

Southern Ag Osmocote Controlled Release Fertilizer 14-14-14, 5 LB Size: 5 LB

Miracle-Gro Shake 'N Feed Flowering Trees and Shrubs Plant Food

Scotts All Purpose Flower & Vegetable Continuous Release Plant Food, Plant Fertilizer, 3 lbs. (6-Pack)

Schultz Spf48410 Rose & Flower Slow-Release Plant Food, 15-5-15, 3.5 Lbs

Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants

Arber Nutrition & Health Starter Set - Organic Plant Nourishment, Protection & Growth Boost - Liquid Concentrate for Gardens (Organic Nutrition & Health Set)

Omri Listed Fish & Kelp Fertilizer for Plants

Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Enhance Aroma and Flavor of Plants – Potting Soil for Indoor Plants – Energy for Plants – 8 Ounce

𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 All-Purpose 20-20-20 Liquid Fertilizer Spray for Lawns, Grass, Plants, Vegetables, Fruits & Flowers | 20-20-20 Liquid Fertilizer for Indoor and Outdoor Plants (32 OZ)

FAQ

What are the benefits of using slow-release fertilizer for flowers?

How do I apply slow-release fertilizer to my flower garden?

What are the best brands of slow-release fertilizer for flowers?

Are there different types of slow-release fertilizers available for flowers?

How effective is slow-release fertilizer in promoting flower growth?

9 Best Slow Release Fertilizer For Flowers 2025 in the United States

Omri Listed Fish & Kelp Fertilizer for Plants (55 Gallon) - Organic Fertilizer for Vegetables, Trees, Lawns, Shrubs, Flowers, Seeds & Plants - Hydrolyzed Fish and Seaweed Blend

Osmocote Smart-Release Plant Food Plus Outdoor & Indoor, 8 lb.

Omri Listed Fish & Kelp Fertilizer for Plants (55 Gallon) - Organic Fertilizer for Vegetables, Trees, Lawns, Shrubs, Flowers, Seeds & Plants - Hydrolyzed Fish and Seaweed Blend

Osmocote Smart-Release Plant Food Flower & Vegetable, 8 lb.

Osmocote 14-14-14 Classic Slow Release Fertilizer - 50 Lbs.

Miracle-Gro Performance Organics Blooms Plant Nutrition Granules - Plant Food with Natural & Organic Ingredients, for Flowering Plants, 2.5 lbs.

Jobe’s Fertilizer Spikes for Flowering Plants, 10-10-4 Time Release Fertilizer, 50 Spikes per Package (2 Pack)

100 EarthPods - Premium Bio Organic Citrus Fertilizer Spikes - Special Plant Food Formulated for Citrus Fruit Trees - Made in USA

Humboldts Secret Flower Stacker – Best Flowering Formula for Bigger Harvests - Flowering Plant Food – Nutrient System for Potting Soil for Indoor & Outdoor Plants - 5 Gallons

Humboldts Secret Golden Tree: World's Best Fertilizer (2.5 Gallon)

Blue Spray Indicator - Mark Where You've Sprayed with Blue Dye for Weed Spraying - Safe & Non-Permanent Dye with Pipette for Easy Mixing - 8oz

Humic Acid - Organic Liquid Humic Concentrate with Fulvic Acid - (5 Gallon Drum) - Multi-Purpose Soil Conditioner - Suitable for Gardens, Lawns, Houseplants & Trees

Southern Ag Osmocote Controlled Release Fertilizer 14-14-14, 5 LB Size: 5 LB

Miracle-Gro Shake 'N Feed Flowering Trees and Shrubs Plant Food

Scotts All Purpose Flower & Vegetable Continuous Release Plant Food, Plant Fertilizer, 3 lbs. (6-Pack)

Schultz Spf48410 Rose & Flower Slow-Release Plant Food, 15-5-15, 3.5 Lbs

Flower Fertilizers

Marker For Fertilizers

Fertilizers

Rose Fertilizers

Starter Fertilizers

Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants

Arber Nutrition & Health Starter Set - Organic Plant Nourishment, Protection & Growth Boost - Liquid Concentrate for Gardens (Organic Nutrition & Health Set)

Omri Listed Fish & Kelp Fertilizer for Plants

Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Enhance Aroma and Flavor of Plants – Potting Soil for Indoor Plants – Energy for Plants – 8 Ounce

𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 All-Purpose 20-20-20 Liquid Fertilizer Spray for Lawns, Grass, Plants, Vegetables, Fruits & Flowers | 20-20-20 Liquid Fertilizer for Indoor and Outdoor Plants (32 OZ)

FAQ

What are the benefits of using slow-release fertilizer for flowers?

How do I apply slow-release fertilizer to my flower garden?

What are the best brands of slow-release fertilizer for flowers?

Are there different types of slow-release fertilizers available for flowers?

How effective is slow-release fertilizer in promoting flower growth?