Best Selling Earthworm Castings: See Top Product Rankings by Sales Volume & Market Trends

June 2026
124 Products Tracked

Looking for the most popular earthworm castings products in the market? Our report leverages real Amazon monthly sales data to identify the best-performing products and the fastest-growing opportunities within the search results for the keyword "earthworm castings." Whether you're searching for winning products to launch or monitoring market trends and competitor performance, this report provides the insights you need.

Based on monthly sales analytics, our Shoppers' Top Picks highlights that ASIN B08SGDB67D currently leads the earthworm castings market with 6K monthly sales, followed closely by B00BYG6P0I with 3K monthly sales and B0CV5ZZJF1 with 3K monthly sales. By tracking competitor sales performance and shifts in market demand, sellers can uncover emerging opportunities and make more informed product and marketing decisions.

🏆Shoppers' Top PicksAmazon
by monthly sales June 2026
Brut Organic Worm Castings for Plants 5 LB – Natural Nutrients, Fertility Builder, Plant Food for Potting Soil and Garden Soil – Indoor and Outdoor Use
1
B08SGDB67D
$15.99·
4.8
Units/sold6K
Fox Farm Big Bloom Liquid Plant Food - Organic Bloom Fertilizer for Flowering & Fruiting Plants, Contains Earthworm Castings & Bat Guano - Supports All Stages of Plant Growth - 0-0.5-0.7 NPK, 1 Pint
2
B00BYG6P0I
$18.99·
4.7
Units/sold3K
Wiggle Worm 100% Pure Organic Mineral-Dense Worm Castings Fertilizer, 30lbs - Improves Soil Fertility and Aeration for Growing Better Houseplants, Vegetables, and More
3
B0CV5ZZJF1
$35.86·
4.8
Units/sold3K

Top Selling Earthworm Castings

As of June 2026, we analyzed 124 tracked products in Amazon's "earthworm castings" search results and generated the following sales chart and product rankings based on monthly sales data. The ranking below highlights the Top 10 products by estimated monthly sales. According to the latest data, these products generated between 1,000 and 6,000 monthly sales. B08SGDB67D leads the earthworm castings market with an estimated 6,000 monthly sales.

124Products Tracked
2,300Top 10 Avg. Sales
$29.77Top 10 Avg. Price
4.6Top 10 Avg. Rating
🏆
Brut Organic Worm Castings for Plants 5 LB – Natural Nutrients, Fertility Builder, Plant Food for Potting Soil and Garden Soil – Indoor and Outdoor Use
#1
B08SGDB67D

Brut Organic Worm Castings for Plants 5 LB – Natural Nutrients, Fertility Builder, Plant Food for Potting Soil and Garden Soil – Indoor and Outdoor Use

6,000
Units Sold/mo
$15.99
Price
4.8
Rating
5.7K
Reviews
2
Fox Farm Big Bloom Liquid Plant Food - Organic Bloom Fertilizer for Flowering & Fruiting Plants, Contains Earthworm Castings & Bat Guano - Supports All Stages of Plant Growth - 0-0.5-0.7 NPK, 1 Pint
B00BYG6P0I
$18.99
4.7 (13.2K)
Fox Farm Big Bloom Liquid Plant Food - Organic Bloom Fertilizer for Flowering & Fruiting Plants, Contains Earthworm Castings & Bat Guano - Supports All Stages of Plant Growth - 0-0.5-0.7 NPK, 1 Pint
3,000 Units Sold/mo
3
Wiggle Worm 100% Pure Organic Mineral-Dense Worm Castings Fertilizer, 30lbs - Improves Soil Fertility and Aeration for Growing Better Houseplants, Vegetables, and More
B0CV5ZZJF1
$35.86
4.8 (1.7K)
Wiggle Worm 100% Pure Organic Mineral-Dense Worm Castings Fertilizer, 30lbs - Improves Soil Fertility and Aeration for Growing Better Houseplants, Vegetables, and More
3,000 Units Sold/mo
4
Scotts Turf Builder Triple Action Built for Seeding -Weed Preventer and Fertilizer for New Lawns, Lawn Food, 1,000 sq. ft., 4.3 lb.
B08KGXWPHR
$14.34
4.4 (2.2K)
Scotts Turf Builder Triple Action Built for Seeding -Weed Preventer and Fertilizer for New Lawns, Lawn Food, 1,000 sq. ft., 4.3 lb.
2,000 Units Sold/mo
5
Wiggle Worm 100% Pure Worm Castings Plus Worm Egg Material, 40lbs - Fertilizer and Soil Amendment for Indoor and Outdoor Gardening to Improve Soil Fertility and Aeration - 100% Organic and Odor Free
B0BYJYCSM2
$43.85
4.6 (941)
Wiggle Worm 100% Pure Worm Castings Plus Worm Egg Material, 40lbs - Fertilizer and Soil Amendment for Indoor and Outdoor Gardening to Improve Soil Fertility and Aeration - 100% Organic and Odor Free
2,000 Units Sold/mo
10
Uncle Jim's Worm Farm 100 Count Red Wiggler Composting Worms Mix for Garden Soil or Fishing | Starter Pack of Compost Worms Improves Soil Structure and Quality for Healthier Gardens
B089QY2LV6
$32.00
4.2 (4.3K)
Uncle Jim's Worm Farm 100 Count Red Wiggler Composting Worms Mix for Garden Soil or Fishing | Starter Pack of Compost Worms Improves Soil Structure and Quality for Healthier Gardens
1,000 Units Sold/mo
View All 124 Products & Deep InsightsGet full access to sales data, trends, and market analysis

For sellers and category managers benchmarking the earthworm castings price landscape, we segmented all 124 tracked listings in Amazon's live "earthworm castings" search results across the full price spectrum, and surfaced the top 3 price tiers by share below to highlight where competition concentrates and where pricing gaps exist.

Leading the distribution, the $20.00 ~ $50.00 band is the category's best earthworm castings price zone, absorbing 49% of the assortment (331 products) — this is where listing density is highest and where new entrants face the steepest competition for share-of-voice. Use the tier breakdown below to identify the top-ranking ASIN, monthly sales velocity, and rating profile within each band — essential inputs for pricing strategy, sourcing decisions, and competitive benchmarking in the earthworm castings category.

Top 3 Price Tiers

$20.00 ~ $50.00 is the most competitive price tier, containing 49% of tracked products.

Sweet Spot
$20.00 ~ $50.00
Tier 1
49%
331 products

Top products in this price tier

#1
B08SGDB67D
$15.99
6k Units Sold/mo
Unlock Top Performers
#2
$10.00 ~ $20.00
Tier 2
28%
191 products
$50.00 ~ $100.00
Tier 3
12%
81 products
$0.00 ~ $10.00
7%
Unlock to view all price tier distributions and their ASIN sales contributions

"Earthworm castings" Search Volume and Market Trends on Amazon

Amazon keyword search volume data for "earthworm castings" in the US marketplace. This report provides insights into keyword search volume, Amazon search trends, competition levels, and conversion efficiency for sellers and brands.

During the week of 2026-05-24 to 2026-05-30, the Amazon USweekly search volume for "earthworm castings" was approximately 2,598 searches. The keyword currently holds an Amazon Search Frequency Rank (SFR) of #85,603, dropping 3,781 positions from the previous week. Additionally, the top 3 products for this keyword capture 39.6% of the total click share and 31.3% of the conversion share, indicating the level of market concentration.

Amazon Search Term
Weekly

earthworm castings

ASINSIGHT
Search Frequency Rank
85,603
3,781
Search Volume
2,598
6.3%
Top 3 Click Share
39.6%
Top 3 Conv. Share
31.3%

Search Volume Trend

Past 3 Years
Past 4 Months
Recent 8 months
Weekly Search Volume
2,598
View full trends for the past 3 years
JunJulAugSepOctNovDecJanFebMarAprMay
Multi-Dimensional Data

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