---
title: "Castor Beans — $18K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/castor-beans"
last_updated: "2026-08-09T18:37:37.032Z"
locale: en
meta:
description: "Niche score 41/100 · $18K/yr market · 30K searches/yr · $8.88 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · $18K/yr market · 30K searches/yr · $8.88 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Castor Beans — $18K/yr Amazon US Niche (2026) - Flapen"
---
# **castor beans**
**Skip it**
Prices mostly outside the sweet spot ($2.97–$15.08) — this niche doesn't clear our bar today.
Market size 5Growth 32Conversion 73Competition 20Returns 98Price range 1Avg price 25Brand share 15Review moat 72Quality gap 96
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Quality gap**
**Incredible****3.9★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Good****6.7%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****633.33**
avg 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****$8.88**
avg listing price — sweet spot $15–$100
**Competition**
**Bad****77%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****94%**
top-5 brand share — brand-locked demand
**Market size**
**Bad****$18K**
$18K/yr · 30K searches
**Price range**
**Bad****$2.97–$15.08**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0")
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 ~~](https://flapen.com/research/methodology)
## **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.
1K600Spike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May · busiest ÷ quietest = 2.7×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/castor-beans/trend)
## **Top castor beans search terms**
- **castor bean seeds**12K/yr+5.8%10.6% conv. - **castor beans**7K/yr+17.9%4.8% conv. - **castor bean seeds for planting**5K/yr+17.9%13.6% conv. - **castor seeds**6K/yr-18.5%4.2% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/castor-beans/search-terms)
## **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.
0%10%$2K20%$4K30%$5K40%$7K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Palm Beach Medicinal Herbs - Red Giant Castor Bean - Packet of 10 Seeds**Palm Beach Medicinal Herbs**$10.04**4.1★293 rev](https://www.amazon.com/dp/B07CRT4FQK) [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**$7.55**4.2★1,524 rev](https://www.amazon.com/dp/B005V304UC) [3**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**$7.55**4.2★1,524 rev](https://www.amazon.com/dp/B07FQYTP6X) [4**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**$7.58**4.2★1,524 rev](https://www.amazon.com/dp/B005V307LI) [5**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**$7.57**4.5★990 rev](https://www.amazon.com/dp/B005V306MS)
**~~View all top sellers →~~**
### **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**$7.23**2 rev6mo ago](https://www.amazon.com/dp/B0GCM377YH) [**Organic Castor Plant Seeds 10 Seeds (6 Grams)**Smoke Camp Crafts**$15.08**55 rev3y ago](https://www.amazon.com/dp/B0BKY8K41L) [**5 Giant Castor Bean Seeds # 1317**Generic**$2.97**44 rev4y ago](https://www.amazon.com/dp/B0B628CMGC) [**Castor Bean Ricinus communis Tropical Plant Premium Seeds for Planting Packet**Sherwoods Seeds**$6.21**27 rev4y ago](https://www.amazon.com/dp/B09K6XQBZ5) [**Castor Bean Seeds - Add a Fast-Growing Tropical Feel to your Yard - 10 Seeds per Packet**GURNEY'S**$12.90**87 rev6y ago](https://www.amazon.com/dp/B0843PH9FR)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$7.23**2.0★**▲ 186%**](https://www.amazon.com/dp/B0GCM377YH) [**Palm Beach Medicinal Herbs - Red Giant Castor Bean - Packet of 10 Seeds**Palm Beach Medicinal Herbs**$10.04**4.1★**▲ 61%**](https://www.amazon.com/dp/B07CRT4FQK) [**Castor Bean Seeds - Add a Fast-Growing Tropical Feel to your Yard - 10 Seeds per Packet**GURNEY'S**$12.90**4.0★**▲ 33%**](https://www.amazon.com/dp/B0843PH9FR) [**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**$10.05**4.2★**▲ 30%**](https://www.amazon.com/dp/B005UQSV3W) [**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**$7.55**4.2★**▲ 16%**](https://www.amazon.com/dp/B005V304UC)
**~~View all trending →~~**
## **What buyers say about castor beans**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Plant Growth**53%
*“The plants seem to be growing well”*
**Color**17%
*“lends a beautiful hue to the garden”*
**Durability**14%
*“viable”*
**Advertised Vs Actual Product**9%
*“As ordered”*
**Size-Overall**5%
*“They were so tall and beautiful”*
**Value For Money**3%
*“Great value”*
### **What buyers complain about **
**Plant Growth**73%
*“Poor germination results”*
**Size-Overall**13%
*“big”*
**Color**5%
*“I am not happy with mine, so boring, no color and leaves keep turning yellow”*
**Advertised Vs Actual Product**3%
*“not as advertised”*
**Quality-Overall**3%
*“Every poor seed quality”*
**Value For Money**3%
*“Dont waste your money on this”*
**Natural Resource Wastage**3%
*“wasted so much effort”*
### **Top return reasons **
**Advertised Vs Actual Product**36%
**Plant Growth**21%
**Value For Money**14%
**Size-Overall**12%
**Functionality-Overall**10%
**Charging**5%
**Defective Material/Parts**2%
## **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.
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