Compost accelerator deals(Disclaimer)
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🏅 49 compost accelerators in price comparison
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💶 Current offers and discounts
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🕝 Last updated on 14.10.2026
Roebic Laboratories CA-2.5-12 2-1/2-Pound Bacterial Compost Accelerator (3 Pack)
Roebic
$ 36.02
free delivery
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Compost Starter & Accelerator - Liquid Compost Booster, 8 oz
Made for Compost Activation – Formulated to help start and accelerate compost breakdown in bins, piles, and tumblers.
$ 11.99
free delivery
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Compost Starter, 100x Concentrated Natural Compost Accelerator, Made in USA
FAST-ACTING COMPOST ACCELERATOR: Transform kitchen scraps into nutrient-rich compost up to 50% faster with our bio-organic Compost Accelerator, packed with billions of active microbes to jumpstart decomposition, saving you time and effort while enriching your garden soil.
$ 19.99
free delivery
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Compost Starter & Compost Accelerator – Liquid Compost Booster for Faster Breakdown & Richer Compost, 32 oz
Made for Compost Activation – Formulated to help start and accelerate compost breakdown in bins, piles, and tumblers.
$ 24.99
free delivery
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Organic Compost 1 Gallon
OMRI Listed
$ 16.49
free delivery
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Roebic Laboratories CA-2.5-12 2-1/2-Pound Bacterial Compost Accelerator (2 Pack)
Complete formula for composting
$ 24.22
free delivery
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TeraGanix TCM Premium Bokashi Bran, Compost Accelerator, 2 lb Rice Bran Mix
PREMIUM COMPOST STARTER: Teraganix Premium Bokashi Bran is enriched with useful Consortium Microbes that help break down organic waste without any unpleasant odors. Contains Premium Rice Bran, TCM, and Molasses.
$ 19.70
free delivery
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20% discount
Espoma Organic Compost Starter; All-Natural Composing Aid Helps Break Down Organic Matter to Make Rich Compost for Organic Gardening. 4 lb. Bag; Pack of 1
FOR USE ON: Add to the compost pile or tumbler to make rich compost, nature’s original soil conditioner.
$ 12.95
$ 16.15
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Compost Tea, Liquid Microbial Supplement for Living Soil, 8 oz
Natural Compost Tea Fertilizer – Compost tea fertilizer designed to support soil health and plant development with nutrient-rich feeding.
$ 11.99
free delivery
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Organic Liquid Compost - Fast-Acting Compost Tea Concentrate | Infused with Broad Spectrum of Soil Enriching Microbes | for Trees, Shrubs, Lawns & Raised Beds (32oz Treats Up to 5,000 Sq Ft)
Provides a broad spectrum of organic nutrients including nitrogen, phosphorus, potassium, calcium, magnesium, and silica.
$ 24.99
free delivery
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Compost Starter & Accelerator - Liquid Compost Booster, 1 Gallon
Made for Compost Activation – Formulated to help start and accelerate compost breakdown in bins, piles, and tumblers.
$ 49.99
free delivery
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COMPOSTR BACTERIAL 2.5#
Roebic
$ 38.73
free delivery
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7% discount
2Pcs Soil Activators,Nauticos Organic Soil Pro Activator (120g)
【Boost Soil Vitality & Plant Growth】Soil Activator, known as "Yogurt for the Soil," revitalizes your soil by stimulating beneficial microorganisms. This powerful liquid fertilizer strengthens root systems, making it perfect for reviving tired lawns, gardens, and indoor plants
$ 12.99
$ 13.99
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Liquid Compost | (8 fl. oz.) | Worm Tea with Trace Minerals, Vitamins, and Aerobic Microbes | Improves Soil Health, Mobile Microbes, and Enhance Nutrient Uptake
MOBILE MICROBES-Microbes move throughout the soil to allow healthy growth of plants, trees, and lawns.
$ 9.99
free delivery
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Southern Oregon Bokashi Compost Starter - 3 lb. Bag, Brown
SOUTHERN OREGON CRAFTED – Made in small batches in the USA with active EM-1 cultures. Fresh, moist, and potent; never a dry, dusty import.
$ 24.95
free delivery
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Uncle Jim’s Worm Farm Organic Worm Food | 1 Month Worm Feed Supply for Red Wigglers, Compost Worms & Vermiculture | Boosts Worm Castings & Composting | 2.5 lb Bag
Expert-formulated Organic Worm Feed: Crafted from Uncle Jim’s 40+ years of hands-on vermiculture experience, this organic worm food is the same proven recipe used on the farm to raise live composting worms. This powdered worm food delivers balanced nutrition that supports healthy digestion, rapid reproduction, and parasite resistance, resulting in stronger worms and richer worm castings for soil improvement.
$ 19.95
free delivery
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Innovative Chemistries Compost Starter, Accelerator, and Activator, 50 g (12)
SUPPORTS FASTER DECOMPOSITION: Active enzymes and beneficial bacteria work together to help break down food scraps, leaves, grass clippings and other organic materials.
$ 195.99
free delivery
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Soil Activator for Plants, Organic Bone Meal Plant Food for Indoor & Outdoor Plants, Potting Mix, Seedling Compost – Promoting Plant Rooting 2pcs
【 Enhance Plant Nutrition 】bone meal fertilizer provide essential nutrients to help plants absorb nutrients better,let the plants miracle grow
$ 9.99
free delivery
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GreenGro Earthshine Fortified Biochar Soil Amendment, 5 lb
RECYCLE OLD SOIL & CUT MEDIA COSTS — Earthshine's fortified biochar blend transforms depleted, old coco coir, soil mix, or any used grow medium back into a high-performing living soil — without the cost of replacing it entirely. Boost new soil with 5-ingredient biology or extend your current media multiple cycles. Also supercharges the performance of compost teas and GreenGro Mycorrhizae products.
$ 43.99
free delivery
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Espoma Compost Starter, Natural & Organic Composting Aid with My Garden Pool Soil PH Test Strips and Gardening Claw Gloves 4 LBS
Helps support faster compost breakdown for organic garden waste and compost piles
$ 18.99
free delivery
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Innovative Chemistries Compost Starter, Accelerator, and Activator, 50 g (6)
SUPPORTS FASTER DECOMPOSITION: Active enzymes and beneficial bacteria work together to help break down food scraps, leaves, grass clippings and other organic materials.
$ 99.99
free delivery
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BuildASoil Kashi Gold Bokashi Compost Starter 2 lbs. Organic Compost Activator with EM-1 Effective Microorganisms, Fermentation Bacteria for Composting & Gardening, Premium Bokashi Bran Soil Enhancer
PREMIUM ORGANIC COMPOST STARTER: Kashi Gold is a high-quality bokashi compost starter activator that boosts soil health and compost efficiency. Powered by effective microorganisms and biological composting enzymes, it accelerates decomposition, enhances nutrient availability, and supports a living soil ecosystem for stronger, more resilient plants
$ 33.00
free delivery
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Lotech Products Compost Crank Twist Compost Aerator
MADE IN THE USA - Handcrafted in Tucson, Arizona, USA on machinery we made from recycled parts by the Ambrose Family. Makers of the original Compost Crank since 1992.
$ 48.75
free delivery
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Innovative Chemistries Compost Starter, Accelerator, and Activator, 50 g
SUPPORTS FASTER DECOMPOSITION: Active enzymes and beneficial bacteria work together to help break down food scraps, leaves, grass clippings and other organic materials.
$ 18.99
free delivery
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Jobe's Organics Compost Starter Fertilizer, 4 lbs - 2 Bag
Jobe's fertilizer, 4 lbs is made of a fast-acting, 100% organic formula;
$ 44.99
free delivery
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2.2 lb (1 kg) Be+ Granular Fertilizer with Amino Acids …
CUTTING EDGE Be+ Granules is a blended formulation of our flagship Be-1 Pellets and Be-2 Inoculant, combined into a bio-available granular form. Concentrated amino acids from fermented fish (FAA), soluble humic acids and kelp, promote exponential increases in beneficial microorganisms (included) & nutrient uptake, dealing with stresses (translpant, drought, heat, etc.), and facilitating photosynthesis.
$ 32.78
free delivery
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ReSoil Compost Concentrate – Organic Soil Booster & Natural Fertilizer Alternative, Loaded with Beneficial Microbes (24 oz)
ReSoil ™
$ 17.99
free delivery
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1 lb (454 g) Be+ Granular Bio-Fertilizer +Amino Acids +Beneficial Microbes
AWAKEN YOUR SOIL! 100% natural organic 3-6-5 performance amendment - fertilizer for your plants, microbes, and soil health. OMRI-listed. CDFA-Organic Input Material (OIM) registered
$ 19.67
free delivery
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Humboldts Secret Monopotassium Phosphate 0-52-34, MKP Fertilizer, 2 lb
Bloom & Yield Booster: Formulated with monopotassium phosphate 0-52-34, this fertilizer delivers 52% phosphorus and 34% potassium to maximize flowering and fruiting. It ensures stronger stems, vibrant blossoms, and higher-quality harvests for healthier, more productive plants.
$ 47.97
free delivery
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Compost Tea Starter – Granular Microbial Blend for Faster Brewing, Stronger Microbes & Richer Compost, 6 oz
Granular Compost Tea Starter – Specially formulated blend designed to brew compost tea for plants and soil enrichment.
$ 14.99
free delivery
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Soil Seed & Water Mikey’s Worm Poop – Organic Dairy Vermicompost Fertilizer Worm Castings for Gardens, Potted Plants & Soil Health - Superior to Standard Compost - OMRI Listed Organic Fertilizer
Mikey's Worm Poop : is an all-natural vermicompost offering a unique and organic solution to soil enhancement.
$ 27.99
free delivery
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Worm Casting Tea Concentrate – Liquid Microbial Supplement for Living Soil, Stronger Roots & Healthier Plants, 32 oz
Concentrated blend of beneficial microbes and organic matter from earthworm castings to enhance your plants.
$ 14.98
free delivery
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BRUT WORM FARMS Cow Compost - Organic Compost - 1 cu ft - Cow Manure
NUTRIENT-RICH GROWTH: Premium cow manure compost packed with nitrogen, calcium, and iron. This organic compost fertilizer enriches soil, boosts microbial life, and supports bigger vegetables, greener lawns, and thriving flowers.
$ 32.89
free delivery
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ProBio Balance Plus - Make 20X More Soil Conditioner & Activator (1 Liter)
DIY Soil Inoculant - ProBio Balance Plus is a bottle of highly concentrated small-batch starter cultures. Active our mother cultures yourself to make 20X more microorganism inoculant and soil builder. Large-scale farm, orchard and garden friendly!
$ 39.45
free delivery
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24% discount
2PCS Soil Activator, Soil Activator for Plants, Organic SoilActivators and Fertilizers, for Most Plants Promotes Nutrient Absorption and Root Development
【Soil Activator for Plants】: Soil activator for plants is designed to enhance soil nutrients, improve the overall plant growth environment, and promote root growth. Whether you are growing vegetables, ornamental flowers or fruits, Yegbong Soil Activator can help your plants thrive by enriching the growing soil and promoting plant growth
$ 12.99
$ 16.99
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HONGJIANV Soil Pro Activator, Soil Activator for Plants, Plant Fertilizer for Raised Garden Beds, Potting Mix, Promote Plant Rooting (60g+120g)
【Improve Plant Growth Environment】Made from mineral potassium fulvic acid and microbial inoculants, Soil Activator boosts root development, balances soil pH, and enhances fruit color and sweetness. It also increases plant resistance, improves water retention, and helps modify soil structure, all while sequestering carbon. The result? Better quality plants and higher yields
$ 18.99
free delivery
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Dr.Raifya's Mycorrhizal Fungi, Boost Root, Growth & Yield, Up to 700 Plants
10X Concentrated for Stronger Results: Expertly selected and tested for the optimal balance of mycorrhizal fungi inoculant and beneficial bacteria, this formula delivers up to 10X enhanced performance. A small amount quickly activates roots and supports higher yields with fuller, healthier fruits.
$ 22.99
free delivery
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Canna Boost Accelerator 5 litres - NA0181BF
CANNA
$ 379.95
free delivery
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Sol Soils Sol Biotics Soil Salvation – Soil Enhancer with Microbial Booster to Enhance The Health & Vitality of Potting Mixes - Includes Worm Castings, Humic Acids & Biochar for Plants - 4oz
REVIVES OLD, TIRED SOIL: Refresh depleted mixes with worm castings, biochar, and soil probiotics that nourish soil microbes for plants growth, improve nutrient uptake, and help plants thrive; great for potted plants and terrariums too
$ 14.99
free delivery
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6% discount
Yegbong Soil Activator, Soil Pro Activator, Nauticos SoilActivator, Organic, Water-Soluble Formula for Optimal Nutrient Uptake & Root Development, Enhance Growth for Vegetables & All Plants (1)
【Boost Plant Health with for Yegbong Soil Activator】for Yegbong Soil Activator Is Designed to Enhance the Soil's Natural Ability to Support Plant Growth, Improving Overall Plant Health. This Powerful Organic Solution Provides Essential Nutrients, Improving Root Growth and Creating an Optimal Environment for Plant Vitality. Whether You're Growing Vegetables, Ornamental Flowers, Or Fruits, For Nauticos Soil Pro Activator Ensures Your Plants Thrive by Enriching the Soil and Boosting Growth.
$ 11.99
$ 12.69
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Hydrated Lime (Technical Grade) (1 Pound)
Improve Garden Soil & Lawn Health: Raise soil pH naturally to correct acidity, promoting greener lawns, stronger plants, and bigger vegetable harvests. Ideal for home gardens and landscape professionals.
$ 12.99
free delivery
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Roebic CA-1 Bacterial Compost Accelerator, 2.5 lb
Complete formula for composting. Enhances decomposition process for nutrient-rich compost
$ 14.89
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250 ml - Boost Accelerator - Flavor and Flowering Stimulator - CANNA 9340025
Sold on Amazon
$ 29.49
free delivery
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Hawaiian Volcanic Organic Bokashi Compost Starter - Compost Starter with 34 Naturally Occurring Minerals
The Bokashi inoculant is teeming with beneficial ingredients that activate when mixed with water, which establish a symbiotic relationship with plant roots, enhancing nutrient absorption and overall plant vitality
$ 29.97
free delivery
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VEE GEE Scientific 82160-12 Dial Soil and Compost Testing Thermometer, -40 to 160 Degree F, 3" Diameter, 12" Length
3" Diameter
$ 47.56
free delivery
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NIYANGLE Wear-resistant Replaceable Bucket Lid Sealing Accessory for Drum Barrel Chemical Containers Twist Top Cover Protection
Convenient bucket lid--produced by good equipment, the structure is sturdy, and it can be used with confidence,bucket lid cap
$ 13.19
free delivery
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TeraGanix TCM Soil Conditioner Microbial Inoculant Concentrate 1 Btl=16 Gal
ALL NATURAL ORGANIC PROBIOTIC for your plants and soil is finally here to improve texture and drainage for soils, while promoting growth for your plants, flowers, trees, shrubs, and garden. PLEASE NOTE the expiration date on the bottle.
$ 29.70
free delivery
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Fertilizer Easy Gardener Jobe'ss Organics Compost Starter - 4lb - Bag
Easy Gardener Jobe's Organics Compost Starter - 4lb - Bag
$ 39.99
free delivery
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Premium Organic Compost Screened 2 lbs
Manure Compost
$ 10.15
free delivery
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We have found a total of 49 compost accelerators deals for you at amazon, Blain's Farm & Fleet, Ace Hardware, and other shops. The most popular brands are: TPS NUTRIENTS, Roebic, and Innovative Chemistries. Today's offer is Espoma Organic Compost Starter; All-Natural Composing Aid Helps Break Down Organic Matter to Make Rich Compost for Organic Gardening. 4 lb. Bag; Pack of 1 with 20% discount. The lowest price we found in our deals is $ 9.99 . The highest price in our price comparison is $ 379.95 . Currently, we have selected 3 reliable shops for you to buy compost accelerators affordably.