worm castings 30 lb
Skip itA small market ($19K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 6% kills the launch gate
Avg price
Great$50.63avg listing price — sweet spot $15–$100
Price range
Good$24.11–$133.55cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good5.9%search→purchase rate — share of searches ending in a sale
Quality gap
Good4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+14.5%90-day search growth — must beat 0% to launch
Review moat
Okay2,883.53avg incumbent reviews — the moat a new listing must climb
Competition
Bad70%top-5 click share — a locked-up shelf
Brand share
Bad96%top-5 brand share — brand-locked demand
Market size
Bad$19K$19K/yr · 6K searches
According to Flapen's Amazon United States niche tracking, worm castings 30 lb is a $19K/yr Amazon United States market (6K searches/yr). The top 5 brands hold 96% of demand. Demand peaks in Mar–Apr–May. Verdict: Skip it — 43/100.
Data updated Jul 15, 2026 · scored weekly · How we score niches
worm castings 30 lb market data
- Units sold / yr
- 250–500
- avg 0–100/product
- Revenue / yr
- $13K–$25K
- units × avg price
- Launch success
- —
- 0 of 1 new (360d)
- Conversion rate
- 5.9%
- Avg BSR
- #803
- Page quality
- 0%
- Prime
- 13%
- Sponsored
- 87%
- Out of stock
- 7.7%
- Avg brand age
- 77 months
- Avg seller age
- 193 days
Competition & brand share
The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.Brands
6 rising
Sellers
14
Top-5 brand share
96%
Top 20: 98%
Top-5 click share
70%
Top 20: 100%
Open market
2%
- Wiggle Worm68%
- BRUT WORM FARMS13%
- NatureGrow7%
- plantonix6%
- Uncle Jim's Worm Farm3%
- --2%
- Open — no brand owns it (2%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +14.5% search growth over the last 90 days.Peak months: Mar, Apr, May · busiest ÷ quietest = 4.1×
Top worm castings 30 lb search terms
- worm castings 50 lb5K/yr
- worm castings 30 lb1K/yr
- 50 lbs worm castings89/yr
Top worm castings 30 lb products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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
Wiggle Worm$41.544.6★984 rev
Wiggle Worm 100% Pure Organic Mineral-Dense Worm Castings Fertilizer 30lbs - Improves Soil Fertility and Aeration for Growing Better Houseplants Vegetables and More
Wiggle Worm$34.244.8★1,817 rev
Wiggle Worm 100% Pure Organic Mineral-Dense Worm Castings Fertilizer 30lbs Pack of 2 - Improves Soil Fertility and Aeration for Growing Better Houseplants Vegetables and More
Wiggle Worm$67.404.8★5,474 rev
Wiggle Worm Raised Bed Mix 40lbs - Organic Soil and Fertilizer for Container Gardening - Worm Egg Material Mixed with Odor Free Pure Worm Castings
Wiggle Worm$34.164.2★316 rev
Worm Bliss (8 Qts) - Organic Worm Castings for Plants & Gardening - OMRI-Listed Earthworm Castings for Plants Vegetables Flowers & Potting Soil - Organic Garden Fertilizer Rich in Nutrients
plantonix$24.794.8★221 rev
Newest
by launch date
Supply Solutions | Wonder Worm Castings Earthworm Castings for Plants & Vermicompost Soil Amendment for Garden Fertilizers Helps Support Soil Texture and Nutrient Availability (40 Pounds)
Supply Solutions$45.071 rev
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
Wiggle Worm$41.54984 rev
Wiggle Worm Raised Bed Mix 40lbs - Organic Soil and Fertilizer for Container Gardening - Worm Egg Material Mixed with Odor Free Pure Worm Castings
Wiggle Worm$34.16316 rev
NatureGrow Earth Worm Castings 30LB (15LB 2 Bags) - Organic Fertilizer Includes Humic Acid - Pure Worm Castings for Gardening
NatureGrow$31.861,497 rev
NatureGrow Earth Worm Castings 40LB - Organic Fertilizer Includes Humic Acid - Pure Worm Castings for Gardening
NatureGrow$37.951,497 rev
Trending
90-day click momentumSupply Solutions | Wonder Worm Castings Earthworm Castings for Plants & Vermicompost Soil Amendment for Garden Fertilizers Helps Support Soil Texture and Nutrient Availability (40 Pounds)
Supply Solutions$45.071.0★
Brut Organic Worm Castings for Plants 12 LB Natural Nutrients Fertility Builder Plant Food for Potting Soil and Garden Soil Indoor and Outdoor Use
BRUT WORM FARMS$24.114.8★
NatureGrow Earth Worm Castings 40LB - Organic Fertilizer Includes Humic Acid - Pure Worm Castings for Gardening
NatureGrow$37.954.7★
Brut Organic Worm Castings for Plants 30 LB Natural Nutrients Fertility Builder Plant Food for Potting Soil and Garden Soil Indoor and Outdoor Use - 4 Pack
BRUT WORM FARMS$133.334.6★
Uncle Jims Worm Farm 1000 Count Red Wiggler Composting Worms Mix for Garden Soil or Fishing | Pack of Compost Worms Improves Soil Structure and Quality for Healthier Gardens
Uncle Jim's Worm Farm$56.734.5★
What buyers say about worm castings 30 lb
What buyers praise and complain about, mined from review topics.What buyers love
“Great product for growing”
“Excellent Product”
“Great value”
“Great product was as advertised”
“Arrived with instructions”
“Easy to use”
“Great for the garden”
“the bag is big love that”
“Doesnt smell bad”
“does make a difference with plants add I have found it keeps away white flies”
What buyers complain about
“But, can't believe the price of what you get”
“Poor quality control, apparently”
“Wrong sizes listed”
“having to take on an extra step to remove them before potting up plants is something Im very much not looking forward to”
“It was a huge mess to clean up”
“Has rocks and wood chippings”
“It should be black as in years past”
“bers does not work”
“not as smelly as other ones”
“Worse ever dry & crumbly”
Top return reasons
Common questions
- Is worm castings 30 lb profitable to sell on Amazon United States?
- The niche generates $19K/yr across 15 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +14.5%. Flapen's verdict: Skip it (43/100).
- How competitive is the worm castings 30 lb niche?
- 6 brands and 14 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 96% of demand.
- What do buyers complain about in worm castings 30 lb?
- Top complaints mined from reviews: Value For Money, Quality-Overall, Size-Overall. The return rate is 0.0%.
- When does demand for worm castings 30 lb peak?
- Demand peaks in Mar–Apr–May; the busiest month runs 4.1× the quietest.
- What does it cost to enter the worm castings 30 lb niche?
- Listings span $24.11–$133.55; the average listing price is $50.63 (sweet spot $15–$100). The average incumbent carries 2,884 reviews — the moat a new listing must climb.