---
title: "Duckweed — $187K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/duckweed"
last_updated: "2026-07-22T21:29:35.947Z"
locale: en
meta:
description: "Niche score 50/100 · $187K/yr market · 302K searches/yr · $11.98 avg price. Soft demand (-17.6% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $187K/yr market · 302K searches/yr · $11.98 avg price. Soft demand (-17.6% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Duckweed — $187K/yr Amazon US Niche (2026) - Flapen"
---
# **duckweed**
**Worth a look**
Shows beatable incumbent ratings (3.6★), but soft demand (-17.6% this quarter) keeps it on the watch list.
Market size 37Growth 16Conversion 60Competition 19Returns 97Price range 56Avg price 50Brand share 42Review moat 79Quality gap 99
**Quality gap**
**Incredible****3.6★**
avg incumbent rating — lower means beatable quality
**Returns**
**Incredible****0.6%**
return rate — above 6% kills the launch gate
**Review moat**
**Great****429.75**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****5.2%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$7.12–$24.96**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****$11.98**
avg listing price — sweet spot $15–$100
**Brand share**
**Okay****80%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$187K**
$187K/yr · 302K searches
**Competition**
**Bad****78%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-17.6%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, duckweed is a $187K/yr Amazon United States market (302K searches/yr). The top 5 brands hold 80% of demand. Demand peaks in Feb. Verdict: Worth a look — 50/100.
Data updated Jul 17, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **duckweed market data**
- **Units sold / yr**
- **13K–15K**
- avg 750–1,000/product
- **Revenue / yr**
- **$150K–$180K**
- units × avg price
- **Launch success**
- **—**
- 2 of 4 new (360d)
- **Conversion rate**
- **5.2%**
- **Avg BSR**
- **#545**
- **Page quality**
- **0%**
- **Prime**
- **25%**
- **Sponsored**
- **58%**
- **Out of stock**
- **4.8%**
- **Avg brand age**
- **62 months**
- **Avg seller age**
- **169 days**
## **Competition & brand share**
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**11 **▼falling
**Sellers**
**15**
**Top-5 brand share**
**80%**
Top 20: 100%
**Top-5 click share**
**78%**
Top 20: 100%
**Open market**
**15%**
- Aquarium Plant Center38% - Quinn's Fins19% - Generic9% - InnoD9% - Awesome Aquatic6% - Aquarigram5% - Open — no brand owns it (5 brands, 15%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -17.6% search growth over the last 90 days.
10K6KBlack Friday '24Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb · busiest ÷ quietest = 2.2×
[**Open Trend **](https://flapen.com/research/us/pet-supplies/duckweed/trend)
## **Top duckweed search terms**
- **duckweed**124K/yr-21.5%3.7% conv. - **duckweed live plant for aquarium**62K/yr-10.1%3.4% conv. - **duck weed**34K/yr+5.6%3.9% conv. - **duckweed seeds**16K/yr-47.0%2.2% conv. - **duck weed for aquariums live**20K/yr-28.7%3.6% conv. - **duck weed for ponds**5K/yr>1,000%5.9% conv. - **duckweed live plant**9K/yr+12.6%4.7% conv. - **live duckweed**8K/yr-14.0%3.5% conv. - **duck weed seeds**7K/yr-52.3%3.1% conv. - **giant duckweed**4K/yr+6.5%6.8% conv. [**All search terms **](https://flapen.com/research/us/pet-supplies/duckweed/search-terms)
## **Top duckweed 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%$19K20%$37K30%$56K40%$75K1101001K10K 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**Giant Duckweed Spirodela polyrhiza Live Aquarium/Aquatic/Freshwater/Floating/Pond Plant Planted Tank Aquascaping by Aquarium Plant Center (30 Plants)**Aquarium Plant Center**$7.12**4.2★993 rev](https://www.amazon.com/dp/B08MSZZ51V) [2**1000 Live Duckweed Plants LEMNA Minor**Quinn's Fins**$11.54**3.3★1,676 rev](https://www.amazon.com/dp/B0722QL3NS) [3**40+ Giant Duckweed (Spirodela polyrhiza) Live Floating Plants for Aquarium or Pond By TMDFishKeeping**InnoD**$9.83**3.7★431 rev](https://www.amazon.com/dp/B08NZ6TKLZ) [4**60+ Live Giant Duckweed Plants Spirodela Polyrhiza Floating Plants for Pond Aquarium**Generic**$12.46**3.7★90 rev](https://www.amazon.com/dp/B0FBLHYY1Z) [5**1000+ Live Duckweed Plants Lemna Minor Floating Aquarium & Pond Plant**Awesome Aquatic**$11.51**3.7★15 rev](https://www.amazon.com/dp/B0H23Z95R4)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**5 000 Live Duckweed Plants (Lemna Minor) for Aquariums & Ponds | Fast-Growing Floating Aquarium Plant | Natural Fish Food for Koi Goldfish & Shrimp | Helps Reduce Nitrates | Healthy Live Plants**CZ Grain**$16.03**1 rev4w ago](https://www.amazon.com/dp/B0H5XZDV7C) [**1000+ Live Duckweed Plants Lemna Minor Floating Aquarium & Pond Plant**Awesome Aquatic**$11.51**15 rev2mo ago](https://www.amazon.com/dp/B0H23Z95R4) [**Floating Plant Bundle - Red Root Floaters Salvinia Giant Duckweed - Aquarium Live Plant Collection - (30+ Leaves Each)**Generic**$24.96**37 rev7mo ago](https://www.amazon.com/dp/B0G62RJFMR) [**500+ Golden Purslane Seeds Portulaca Sativa Leafy Little Hogweed Duckweed Herb Vegetable Garden Plant**SPROUTARAQ**$7.57**2 rev7mo ago](https://www.amazon.com/dp/B0G58S2RR6) [**60+ Live Giant Duckweed Plants Spirodela Polyrhiza Floating Plants for Pond Aquarium**Generic**$12.46**90 rev1y ago](https://www.amazon.com/dp/B0FBLHYY1Z)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**5 000 Live Duckweed Plants (Lemna Minor) for Aquariums & Ponds | Fast-Growing Floating Aquarium Plant | Natural Fish Food for Koi Goldfish & Shrimp | Helps Reduce Nitrates | Healthy Live Plants**CZ Grain**$16.03**1.0★**▲ 208%**](https://www.amazon.com/dp/B0H5XZDV7C) [**1000+ Live Duckweed Plants Lemna Minor Floating Aquarium & Pond Plant**Awesome Aquatic**$11.51**3.7★**▲ 208%**](https://www.amazon.com/dp/B0H23Z95R4) [**Floating Plant Bundle - Red Root Floaters Salvinia Giant Duckweed - Aquarium Live Plant Collection - (30+ Leaves Each)**Generic**$24.96**4.4★**▲ 77%**](https://www.amazon.com/dp/B0G62RJFMR) [**500+ Golden Purslane Seeds Portulaca Sativa Leafy Little Hogweed Duckweed Herb Vegetable Garden Plant**SPROUTARAQ**$7.57**4.1★**▲ 73%**](https://www.amazon.com/dp/B0G58S2RR6) [**NIKA SEEDS - Seeds Vegetable Common Purslane Duckweed Little Hogweed - 1000 Seeds**NIKA SEEDS**$8.92**4.1★**▲ 54%**](https://www.amazon.com/dp/B0CHJ1J71C)
**~~View all trending →~~**
## **What buyers say about duckweed**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Plant Growth**28%
*“Good healthy plants”*
**Quality-Overall**19%
*“Arrived healthy and doing great”*
**Advertised Vs Actual Product**11%
*“As advertised”*
**Value For Money**9%
*“Well worth the money”*
**Color**6%
*“Very pretty”*
**Size-Overall**5%
*“they the perfect size”*
**Freshness**2%
*“arrived in good condition with visible”*
**Smell**2%
*“earthy smell just as they should”*
**Durability**1%
*“They can alive and thriving”*
**Ease Of Use**1%
*“Beautiful and Easy”*
### **What buyers complain about **
**Size-Overall**20%
*“Small plants, small portion”*
**Durability**18%
*“all of them died after two weeks”*
**Value For Money**14%
*“also extremely expensive”*
**Plant Growth**13%
*“Somethings just dont grow”*
**Advertised Vs Actual Product**8%
*“Picture is misleading”*
**Contamination**4%
*“I felt sort of weird about something I saw in the bag, added water, HAD SO MANY detritus worms”*
**Quality-Overall**4%
*“Garbage”*
**Instructions/User Manual/Troubleshooting**3%
*“Followed the directions, they died”*
**Filtration**2%
*“I didn't know that it would clog up my internal filter”*
**Color**2%
*“it just turned brown I didn't get any kind of of multiplication of product or plant or anything it just went Brown so chickens didn't even get a chance to eat any of it”*
### **Top return reasons **
**Size-Overall**33%
**Advertised Vs Actual Product**19%
**Plant Growth**8%
**Smell**7%
**Functionality-Overall**7%
**Defective Material/Parts**5%
**Leak-Proof**2%
**Quality-Overall**2%
**Adhesion/Stickiness**2%
**Moist/Dry**2%
## **Common questions**
- **Is duckweed profitable to sell on Amazon United States?**
- The niche generates $187K/yr across 12 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -17.6%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the duckweed niche?**
- 11 brands and 15 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 80% of demand.
- **What do buyers complain about in duckweed?**
- Top complaints mined from reviews: Size-Overall, Durability, Value For Money. The return rate is 0.6%.
- **When does demand for duckweed peak?**
- Demand peaks in Feb; the busiest month runs 2.2× the quietest.
- **What does it cost to enter the duckweed niche?**
- Listings span $7.12–$24.96; the average listing price is $11.98 (sweet spot $15–$100). The average incumbent carries 430 reviews — the moat a new listing must climb.
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