castile soap for plants
Worth a lookShows low returns (0.4%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Growth
Incredible+128.9%90-day search growth — must beat 0% to launch
Conversion
Great10.9%search→purchase rate — share of searches ending in a sale
Avg price
Great$16.45avg listing price — sweet spot $15–$100
Price range
Great$9.41–$37.10cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Competition
Okay66%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$94K$94K/yr · 53K searches
Review moat
Bad15,227.07avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, castile soap for plants is a $94K/yr Amazon United States market (53K searches/yr). The top 5 brands hold 83% of demand. Verdict: Worth a look — 57/100.
Data updated Jul 15, 2026 · scored weekly · How we score niches
castile soap for plants market data
- Units sold / yr
- 5K–6K
- avg 250–500/product
- Revenue / yr
- $82K–$99K
- units × avg price
- Conversion rate
- 10.9%
- Avg BSR
- #47
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 93%
- Out of stock
- 0.0%
- Avg brand age
- 70 months
- Avg seller age
- 135 days
Competition & brand share
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.Brands
9 flat
Sellers
100
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
66%
Top 20: 100%
Open market
12%
- Yoken44%
- Dr. Bronner's22%
- Garden Safe6%
- Dr. Natural6%
- Safer5%
- WHOLENATURALS5%
- Open — no brand owns it (3 brands, 12%)
Demand
Weekly Amazon search volume, last 9 weeks — +128.9% search growth over the last 90 days.Top castile soap for plants search terms
- castile soap for plants28K/yr
- plant soap13K/yr
- yoken pure castile soap3K/yr
- horticultural soap4K/yr
- yoken castile soap4K/yr
Top castile soap for plants 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
Yoken Pure Castile Liquid Soap 8 Oz Unscented with Organic Oil EWG Verified
Yoken$9.414.6★3,630 rev
Dr. Bronners Pure-Castile Magic Liquid Soap (Peppermint 8 Ounce)- Made with Organic Oils 18-in1 Uses: Face Hair Hand & Body Soap Laundry Pets- Concentrated Vegan Non-GMO
Dr. Bronner's$10.114.8★70,581 rev
Dr. Bronners Pure-Castile Magic Liquid Soap - Made with Regenerative Organic Certified Oils- 18-in-1 Uses for Face Body Hand Hair Laundry & More- Vegan Non-GMO- Body Wash- Peppermint 32oz
Dr. Bronner's$16.994.8★70,581 rev
Garden Safe Brand Insecticidal Soap Insect Killer 32 Fluid Ounces For Organic Gardening Kills Bugs Through Contact
Garden Safe$10.524.4★2,640 rev
Dr. Natural Castile Liquid Soap Peppermint 32 oz - Plant-Based - Made with Organic Shea Butter - Rich in Coconut and Olive Oils - Sulfate and Paraben-Free Cruelty-Free - Multi-Purpose Soap
Dr. Natural$10.574.5★3,040 rev
Newest
by launch date
WEBE Naturals Pure Unscented Castile Soap Refill 64 Oz | Face Body Wash Dishes Pets & Laundry
WEBE$21.72977 rev
Yoken Pure Castile Liquid Soap 8 Oz Unscented with Organic Oil EWG Verified
Yoken$9.413,630 rev
Yoken Pure Castile Liquid Soap 33.8 Oz Unscent add Organic Oil EWG Verified
Yoken$14.133,630 rev
Yoken Pure Castile Liquid Soap 128 Oz Unscented Body Wash Dishes with Pump
Yoken$37.103,630 rev
Neem Oil Spray for Plants with Peppermint Oil Natural Plant Wash Made for Indoor and Outdoor Plants Smart Grower 16oz Easy Ready to Use Spray
Smart Grower$20.861,536 rev
Trending
90-day click momentumDr. Bronners Pure-Castile Magic Liquid Soap (Peppermint 8 Ounce)- Made with Organic Oils 18-in1 Uses: Face Hair Hand & Body Soap Laundry Pets- Concentrated Vegan Non-GMO
Dr. Bronner's$10.114.8★
Dr. Natural Castile Liquid Soap Peppermint 32 oz - Plant-Based - Made with Organic Shea Butter - Rich in Coconut and Olive Oils - Sulfate and Paraben-Free Cruelty-Free - Multi-Purpose Soap
Dr. Natural$10.574.5★
WEBE Naturals Pure Unscented Castile Soap Refill 64 Oz | Face Body Wash Dishes Pets & Laundry
WEBE$21.724.6★
Neem Oil Spray for Plants with Peppermint Oil Natural Plant Wash Made for Indoor and Outdoor Plants Smart Grower 16oz Easy Ready to Use Spray
Smart Grower$20.864.5★
Yoken Pure Castile Liquid Soap 8 Oz Unscented with Organic Oil EWG Verified
Yoken$9.414.6★
What buyers say about castile soap for plants
What buyers praise and complain about, mined from review topics.What buyers love
“high-quality ingredients”
“Amazing product fragrance free”
“Clean and fresh”
“kills the bugs”
“cleans very well”
“Good price”
“Worked as advertised”
“my face feels soft”
“Works quickly”
“Great lathering soap”
What buyers complain about
“Has a hard smell to it”
“Not Effective Against White Fly”
“It's more watery than I expected”
“arrived leaking”
“Not worth the money”
“Spray bottle defective”
“It's a TINY bottle”
“I started itching after using it”
“It makes a huge mess”
“My plants did not like this product”
Top return reasons
Common questions
- Is castile soap for plants profitable to sell on Amazon United States?
- The niche generates $94K/yr across 15 tracked products. 90-day search growth is +128.9%. Flapen's verdict: Worth a look (57/100).
- How competitive is the castile soap for plants niche?
- 9 brands and 100 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in castile soap for plants?
- Top complaints mined from reviews: Smell, Pest/Insect Control, Dilute/Watery. The return rate is 0.4%.
- What does it cost to enter the castile soap for plants niche?
- Listings span $9.41–$37.10; the average listing price is $16.45 (sweet spot $15–$100). The average incumbent carries 15,227 reviews — the moat a new listing must climb.