Slow release fertilisers in comparison
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Last updated on 01.10.2026
1
Bioactive Plant Fertilizer Granular Clean-Release, High Carbon Genius+ 200g
Smart Grower
30% off
free shipping
To the product (1 offer)
9,9
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2
Slow Release Lawn Fertilizer 25-5-10 NPK - 65% Granular Nitrogen Formula for Deep Feeding up to 110 Days - 10kg (22lbs) Bag - Kid & Pet Safe Lawn Care for Lush Green Grass
Eco Solutions
free shipping
To the product (1 offer)
9,8
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3
Granular Lemon Tree Fertilizer – Organic Slow Release Plant Food, 6 oz
TPS NUTRIENTS
free shipping
To the product (1 offer)
9,7
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4
GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (1/2 qt)
GARDENWISE
free shipping
To the product (1 offer)
9,7
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5
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor1, 8 lb.
Osmocote
17% off
To the product (3 offers)
9,6
Offer ends in:
03Days
09hours
24minutes
26seconds
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6
10-0-20 Emerald Lawn Fertilizer 25lbs - Slow-Release Nitrogen, Iron, & Micronutrients - Dark Green Lawn for Tall Fescue, St. Augustine, Zoysia, Centipede
Lawn Synergy
17% off
free shipping
To the product (1 offer)
9,6
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7
Ferti-Lome Slow Release Nitrogen Lawn Fertilizer 15-0-15 with Iron – for Centipede & Multiple Grass Types – Covers 4,000 sq ft per Bag (2 Pack)
Factory Hardware Store
free shipping
To the product (1 offer)
9,6
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8
Jobe’s Slow Release Evergreen Fertilizer Spikes, Easy Plant Care for Cypress, Arborvitae, Pine, Cedar, and Many More Acid Loving Trees, 15 Count
Jobe's Organics
free shipping
To the product (2 offers)
9,5
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9
Bigmeta 10-10-10 Slow-Release Premium Fertilizer
Bigmeta
free shipping
To the product (1 offer)
9,5
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10
Java Perk Indoor Plant Food: A Slow‑Release Fertilizer with Complete NPK & Micro-Nutrients with Real Coffee for Houseplants, Indoor Herbs & Container Gardens - Odorless, Easy & Long‑Lasting (2 lb)
GeoJava
5% off
free shipping
To the product (1 offer)
9,4
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You might also be interested in these slow release fertilisers.
FoxFarm Happy Frog Citrus and Avocado Fertilizer- OMRI Listed Citrus Fertilizer, Slow-Release Nitrogen, Calcium & Sulfur for Citrus & Avocado Trees - 4 lb
THE SECRET TO THRIVING TREES: The citrus tree fertilizer provides slow-release nitrogen to fuel your trees' vegetative growth
$ 22.99
free shipping
To the product (1 offer)
Texas Rose Food 10-20-5 Slow Release for Easy Feeding - 3 lbs Fertilizer Plant Food - for the Best Roses
Great for All Rose Varieties
$ 18.95
free shipping
To the product (1 offer)
Organic Plant Magic - Truly Organic™ Slow Release Granular Fertilizer: Long-Lasting Plant Food Granules - Indoor & Outdoor Flowers, Vegetable Gardens, Fruit Trees, Shrubs, House Plants (Two 4 lb Bags)
New Spreadable Fertilizer Granules - Amazing Benefits that Plants & Customers LOVE!
$ 69.97
free shipping
To the product (1 offer)
Nutricote 18-6-8 (180 Day) Slow Release Fertilizer - All Purpose Plant Food, Great for Orchids, Aroids and Tropicals - (1/2lb) 8oz.
Only needs to be applied once every 6 months and slowly releases the food over the 6 month period.
$ 11.99
free shipping
To the product (1 offer)
Pennington Full Season Lawn Fertilizer 12M 32-0-5 RF 35/33.6Lb
Pennington
$ 50.21
free shipping
To the product (2 offers)
Leaves & Soul Palm Tree Fertilizer 8-2-12 Slow Release Palm Fertilizer 5lbs
TARGETED PALM TREE FERTILIZER 8-2-12: Specially designed for palms, this palm tree fertilizer 8-2-12 delivers balanced nutrition for strong growth. The advanced 8-2-12 fertilizer blend supports root development, healthy fronds, and plant stability. Ideal fertilizer for palm trees, it provides the nutrients palms need to thrive in outdoor environments.
$ 26.99
free shipping
To the product (1 offer)
Root Tabs Freshwater Aquarium Plant Fertilizer, Slow-Release 100 Tabs 1g/Tab, Safe for Fish and Shrimp, for Planted Aquarium Substrate (2 * 100)
First-Time Use Guide: For your initial application of root tabs freshwater aquarium plant fertilizer, start with 80% of the recommended dose first. After monitoring the growth of your live aquarium plants for a period, adjust to the full recommended dose. The recommended dose for aquarium root tabs is placing 1 tab with a minimum 5-inch spacing on the tank bottom: 5 tabs for 5-gallon tanks, 10 tabs for 10-gallon tanks. You can increase or decrease 1-2 root tabs for aquarium plants based on the density of your planted aquarium plants live.
$ 19.99
free shipping
To the product (1 offer)
Nutricote 18-6-8 Total 180 Day Time Release Fertilizer (1, 3 lb.)
Nutricote 18-6-8 Total 180 Day is great for seedlings to mature plants giving them a little boost of added nitrogen.
$ 27.70
free shipping
To the product (1 offer)
Garden Envy 13-13-13 Slow Release All-Purpose Professional Fertilizer with Micronutrients for Lawns, Flowers, Trees, Shrubs & Vegetable Gardens, 7 lbs
BALANCED FORMULA: 13-13-13 NPK ratio provides equal amounts of nitrogen, phosphorus, and potassium for complete plant nutrition and healthy growth
$ 29.99
free shipping
To the product (1 offer)
Grow Queen All-in-One Complete Organic Plant Food, Indoor Plant Food for Houseplants, Organic Fertilizer for Vegetable Gardens, 7 Formulated Single Servings Feeds 14 gal Fast and Slow Release
VERSATILE APPLICATIONS & HEALTHY ROOTS: This versatile plant food is excellent as a complete food for indoor potted plants & hanging pots, as well as a superb microbe inoculant and starter for garden beds—indoors or out. It also reduces transplant shock, promoting rapid, vigorous root growth, offering advantages over liquid fertilizers in root development.
$ 13.99
free shipping
To the product (1 offer)
25% off
Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK - 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care - Slow Release High Nitrogen Turf Builder
ULTIMATE LIQUID NITROGEN FERTILIZER: This liquid lawn food supplement has an ultra-high nitrogen formula to promote green grass and quick growth. Easily turn yellow & nitrogen deficient grass into a lush thick green!
$ 29.86
free shipping
To the product (1 offer)
𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur - Indoor & Outdoor Soil Acidifier for Miracle Growth - 2 QUARTS
SPECTACULAR YEAR-ROUND BLOOMS – Achieve vibrant flowers in every season with our powerful 8-4-8 balanced fertilizer, enriched with iron and sulfur for brilliant hydrangeas, azaleas, and more.
$ 19.99
free shipping
To the product (1 offer)