castor beans
Skip itPrices mostly outside the sweet spot ($2.97–$15.08) — this niche doesn't clear our bar today.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Quality gap
Incredible3.9★avg incumbent rating — lower means beatable quality
Conversion
Good6.7%search→purchase rate — share of searches ending in a sale
Review moat
Good633.33avg incumbent reviews — the moat a new listing must climb
Growth
Okay+5.3%90-day search growth — must beat 0% to launch
Avg price
Okay$8.88avg listing price — sweet spot $15–$100
Competition
Bad77%top-5 click share — a locked-up shelf
Brand share
Bad94%top-5 brand share — brand-locked demand
Market size
Bad$18K$18K/yr · 30K searches
Price range
Bad$2.97–$15.08cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, castor beans is a $18K/yr Amazon United States market (30K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Mar–Apr–May. Verdict: Skip it — 41/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
castor beans market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- $18K–$22K
- units × avg price
- Conversion rate
- 6.7%
- Avg BSR
- #1,879
- Page quality
- 0%
- Prime
- 67%
- Sponsored
- 83%
- Out of stock
- 20.5%
- Avg brand age
- 68 months
- Avg seller age
- 181 days
Competition & brand share
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 flat
Sellers
20
Top-5 brand share
94%
Top 20: 100%
Top-5 click share
77%
Top 20: 100%
Open market
4%
- Outsidepride51%
- Palm Beach Medicinal Herbs27%
- Smoke Camp Crafts8%
- Mixrug5%
- Generic4%
- GURNEY'S2%
- Open — no brand owns it (2 brands, 4%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +5.3% search growth over the last 90 days.Peak months: Mar, Apr, May · busiest ÷ quietest = 2.7×
Top castor beans search terms
- castor bean seeds12K/yr
- castor beans7K/yr
- castor bean seeds for planting5K/yr
- castor seeds6K/yr
Top castor beans 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 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Palm Beach Medicinal Herbs - Red Giant Castor Bean - Packet of 10 Seeds
Palm Beach Medicinal Herbs$10.044.1★293 rev
Outsidepride Gibsonii Castor Bean Seeds - 50 Pcs Annual Quick-Growing Tropical Flower Seeds for Planting Vibrant Foliage & Colorful Blooms for Eye-Catching Borders Gardens & Landscapes
Outsidepride$7.554.2★1,524 rev
Outsidepride Bright Red Castor Bean Seeds - 15 Pcs Annual Quick-Growing Tropical Flower Seeds for Planting Vibrant Foliage & Colorful Blooms for Eye-Catching Borders Gardens & Landscapes
Outsidepride$7.554.2★1,524 rev
Outsidepride Zanzibariensis Castor Bean Seeds - 50 Pcs Annual Quick-Growing Tropical Flower Seeds for Planting Vibrant Foliage & Colorful Blooms for Eye-Catching Borders Gardens & Landscapes
Outsidepride$7.584.2★1,524 rev
Outsidepride Impala Castor Bean Seeds - 50 Pcs. Annual Quick-Growing Tropical Flower Seeds for Planting Vibrant Foliage & Colorful Blooms for Eye-Catching Borders Gardens & Landscapes
Outsidepride$7.574.5★990 rev
Newest
by launch date
Mixrug Giant Castor Beans Seeds for Planting 50pcs Perennial Castor Herbs Seeds Plants Non-GMO Heirloom Premium Organic Herbs Plants for Home Garden Outdoors
Mixrug$7.232 rev
Organic Castor Plant Seeds 10 Seeds (6 Grams)
Smoke Camp Crafts$15.0855 rev
5 Giant Castor Bean Seeds # 1317
Generic$2.9744 rev
Castor Bean Ricinus communis Tropical Plant Premium Seeds for Planting Packet
Sherwoods Seeds$6.2127 rev
Castor Bean Seeds - Add a Fast-Growing Tropical Feel to your Yard - 10 Seeds per Packet
GURNEY'S$12.9087 rev
Trending
90-day click momentumMixrug Giant Castor Beans Seeds for Planting 50pcs Perennial Castor Herbs Seeds Plants Non-GMO Heirloom Premium Organic Herbs Plants for Home Garden Outdoors
Mixrug$7.232.0★
Palm Beach Medicinal Herbs - Red Giant Castor Bean - Packet of 10 Seeds
Palm Beach Medicinal Herbs$10.044.1★
Castor Bean Seeds - Add a Fast-Growing Tropical Feel to your Yard - 10 Seeds per Packet
GURNEY'S$12.904.0★
Outsidepride Zanzibariensis Castor Bean Seeds - 100 Pcs Annual Quick-Growing Tropical Flower Seeds for Planting Vibrant Foliage & Colorful Blooms for Eye-Catching Borders Gardens & Landscapes
Outsidepride$10.054.2★
Outsidepride Gibsonii Castor Bean Seeds - 50 Pcs Annual Quick-Growing Tropical Flower Seeds for Planting Vibrant Foliage & Colorful Blooms for Eye-Catching Borders Gardens & Landscapes
Outsidepride$7.554.2★
What buyers say about castor beans
What buyers praise and complain about, mined from review topics.What buyers love
“The plants seem to be growing well”
“lends a beautiful hue to the garden”
“viable”
“As ordered”
“They were so tall and beautiful”
“Great value”
What buyers complain about
“Poor germination results”
“big”
“I am not happy with mine, so boring, no color and leaves keep turning yellow”
“not as advertised”
“Every poor seed quality”
“Dont waste your money on this”
“wasted so much effort”
Top return reasons
Common questions
- Is castor beans profitable to sell on Amazon United States?
- The niche generates $18K/yr across 12 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +5.3%. Flapen's verdict: Skip it (41/100).
- How competitive is the castor beans niche?
- 8 brands and 20 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 94% of demand.
- What do buyers complain about in castor beans?
- Top complaints mined from reviews: Plant Growth, Size-Overall, Color. The return rate is 0.4%.
- When does demand for castor beans peak?
- Demand peaks in Mar–Apr–May; the busiest month runs 2.7× the quietest.
- What does it cost to enter the castor beans niche?
- Listings span $2.97–$15.08; the average listing price is $8.88 (sweet spot $15–$100). The average incumbent carries 633 reviews — the moat a new listing must climb.