compost tea
Worth a lookShows low returns (0.3%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Avg price
Incredible$26.67avg listing price — sweet spot $15–$100
Price range
Great$9.78–$57.90cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Great+69.9%90-day search growth — must beat 0% to launch
Conversion
Good6.6%search→purchase rate — share of searches ending in a sale
Review moat
Okay1,746.83avg incumbent reviews — the moat a new listing must climb
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Competition
Okay60%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$98K$98K/yr · 56K searches
According to Flapen's Amazon United States niche tracking, compost tea is a $98K/yr Amazon United States market (56K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in May–Jun. Verdict: Worth a look — 58/100.
Data updated Jul 15, 2026 · scored weekly · How we score niches
compost tea market data
- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- $80K–$107K
- units × avg price
- Conversion rate
- 6.6%
- Avg BSR
- #922
- Page quality
- 0%
- Prime
- 91%
- Sponsored
- 74%
- Out of stock
- 6.0%
- Avg brand age
- 84 months
- Avg seller age
- 161 days
Competition & brand share
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.Brands
12 falling
Sellers
28
Top-5 brand share
78%
Top 20: 100%
Top-5 click share
60%
Top 20: 97%
Open market
15%
- Bloom City27%
- TPS NUTRIENTS20%
- Mighty Plant16%
- VermisTerra8%
- Real Growers7%
- Xtreme Gardening7%
- Open — no brand owns it (6 brands, 15%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +69.9% search growth over the last 90 days.Peak months: May, Jun · busiest ÷ quietest = 1.6×
Top compost tea search terms
- compost tea31K/yr
- worm tea10K/yr
- compost tea for plants7K/yr
- worm tea fertilizer liquid3K/yr
- worm casting tea3K/yr
- compost tea fertilizer3K/yr
Top compost tea 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 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Organic Earthworm Tea Concentrate and Compost and Bokashi Booster by Bloom City Quart (32 oz)
Bloom City$22.444.7★1,942 rev
Compost Tea Liquid Microbial Supplement for Living Soil Better Nutrient Uptake & Stronger Plants 8 oz
TPS NUTRIENTS$11.554.4★61 rev
Instant Compost Tea (5 oz) Probiotic Plant Food Bloom Booster & Yield Booster for Hydroponics & All Gardening Types | Microbial Formula Converts Amino Acids for Enhanced Growth (5 Ounces)
Mighty Plant$18.204.6★515 rev
Bloom City Organic Worm Tea Concentrate and Compost and Bokashi Booster 1/2 Pint (8 oz)
Bloom City$11.284.7★1,942 rev
Xtreme Gardening Xtreme Tea Brews Compost Tea Kit 2-Pack 80g Pouches Each Brews 5 Gallons Bloom Booster & Yield Booster with Worm Castings & Microbe Food Pack Works with Any Fertilizer Program
Xtreme Gardening$9.784.5★285 rev
Newest
by launch dateCompost Tea Liquid Microbial Supplement for Living Soil Better Nutrient Uptake & Stronger Plants 8 oz
TPS NUTRIENTS$11.5561 rev
Compost Tea Liquid Microbial Supplement for Living Soil Better Nutrient Uptake & Stronger Plants 32 oz
TPS NUTRIENTS$21.1261 rev
Compost Tea Liquid Microbial Supplement for Living Soil Better Nutrient Uptake & Stronger Plants 1 Gallon
TPS NUTRIENTS$41.0761 rev
Worm Casting Tea Concentrate Liquid Microbial Supplement for Living Soil Stronger Roots & Healthier Plants 8 oz
TPS NUTRIENTS$11.6164 rev
Worm Casting Tea Concentrate Liquid Microbial Supplement for Living Soil Stronger Roots & Healthier Plants 32 oz
TPS NUTRIENTS$19.5564 rev
Trending
90-day click momentumCompost Tea Liquid Microbial Supplement for Living Soil Better Nutrient Uptake & Stronger Plants 32 oz
TPS NUTRIENTS$21.124.4★
Super Compost Tea (128 oz - 1 Gallon in Two Half Gallon Bottles) Natural and Organic for Plant Food Nutrient Fertilizer and Growth Efficiency
Gardenersbud$31.644.4★
Compost Tea Liquid Microbial Supplement for Living Soil Better Nutrient Uptake & Stronger Plants 1 Gallon
TPS NUTRIENTS$41.074.4★
Xtreme Gardening Xtreme Tea Brews Compost Tea Kit 2-Pack 80g Pouches Each Brews 5 Gallons Bloom Booster & Yield Booster with Worm Castings & Microbe Food Pack Works with Any Fertilizer Program
Xtreme Gardening$9.784.5★
Worm Casting Tea Concentrate Liquid Microbial Supplement for Living Soil Stronger Roots & Healthier Plants 32 oz
TPS NUTRIENTS$19.554.5★
What buyers say about compost tea
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent Growth”
“It comes with great reviews from others”
“Easy to use”
“Works as it claims”
“Good value for the size”
“Lasts”
“Recharge is great”
“Plant-Loving Boost for Every Garden 🌱 TPS truly does it again with another great product”
“That said, it smells just like the quality compost teas Ive used before, which gives me some confidence in whats in the bottle”
“It has the right color”
What buyers complain about
“The product has a weird smell to it”
“Use this only once per week or else your plants will choke strangle you for skipping her feed day”
“so far I am not happy with the amount you get for the price I just paid”
“The leaves are larger”
“Did not make a difference”
“Since this big container is not that good quality so in future going to buy revive brand one only”
“honestly sort of hard to gauge”
“Did nothing and followed all the instructions”
“not the green I wanted”
“Some of my plants were having a difficult time absorbing nutrients”
Top return reasons
Common questions
- Is compost tea profitable to sell on Amazon United States?
- The niche generates $98K/yr across 23 tracked products. 90-day search growth is +69.9%. Flapen's verdict: Worth a look (58/100).
- How competitive is the compost tea niche?
- 12 brands and 28 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 78% of demand.
- What do buyers complain about in compost tea?
- Top complaints mined from reviews: Smell, Plant Growth, Value For Money. The return rate is 0.3%.
- When does demand for compost tea peak?
- Demand peaks in May–Jun; the busiest month runs 1.6× the quietest.
- What does it cost to enter the compost tea niche?
- Listings span $9.78–$57.90; the average listing price is $26.67 (sweet spot $15–$100). The average incumbent carries 1,747 reviews — the moat a new listing must climb.