---
title: "Plant Growth Regulator — $478K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/plant-growth-regulator"
last_updated: "2026-08-10T23:51:55.578Z"
locale: en
meta:
description: "Niche score 57/100 · $478K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 57/100 · $478K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Plant Growth Regulator — $478K/yr Amazon US Niche (2026) - Flapen"
---
# **plant growth regulator**
**Worth a look**
Shows low returns (0.5%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 59Growth 97Conversion 86Competition 0Returns 98Price range 71Avg price 80Brand share 0Review moat 91Quality gap 35
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Growth**
**Incredible****+170.6%**
90-day search growth — must beat 0% to launch
**Review moat**
**Great****186.2**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Great****9.8%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$85.53**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$34.78–$126.50**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$478K**
$478K/yr · 57K searches
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, plant growth regulator is a $478K/yr Amazon United States market (57K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Jun–Jul–Aug. Verdict: Worth a look — 57/100.
Data updated Jul 15, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **plant growth regulator market data**
- **Units sold / yr**
- **3K–4K**
- avg 500–750/product
- **Revenue / yr**
- **$257K–$342K**
- units × avg price
- **Conversion rate**
- **9.8%**
- **Avg BSR**
- **#1,130**
- **Page quality**
- **0%**
- **Prime**
- **80%**
- **Sponsored**
- **60%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **69 months**
- **Avg seller age**
- **151 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**18**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- Syngenta45% - Atticus26% - Quali-Pro22% - The Andersons8% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +170.6% search growth over the last 90 days.
2K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 6.1×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/plant-growth-regulator/trend)
## **Top plant growth regulator search terms**
- **plant growth regulator**12K/yr+171.4%4.7% conv. - **pgr plant growth regulator**8K/yr+224.9%8.0% conv. - **primo maxx plant growth regulator**7K/yr+219.2%12.5% conv. - **pgr**8K/yr+153.6%4.0% conv. - **tnex plant growth regulator**5K/yr+151.6%7.0% conv. - **primo maxx**5K/yr+97.3%9.3% conv. - **tnex**4K/yr+88.5%8.0% conv. - **grass growth regulator**3K/yr+172.8%5.3% conv. - **growth regulator for grass**2K/yr+259.3%6.5% conv. - **t-nex plant growth regulator**2K/yr+201.2%9.0% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/plant-growth-regulator/search-terms)
## **Top plant growth regulator 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%15%$72K30%$143K45%$215K60%$287K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 5 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Primo Maxx Plant Growth Regulator**Syngenta**$34.78**4.6★144 rev](https://www.amazon.com/dp/B0B4VBN389) [2**Quali-Pro T-Nex Plant Growth Regulator (Primo Maxx) 128oz White (83013998)**Quali-Pro**$126.50**4.6★389 rev](https://www.amazon.com/dp/B0B8S65YRM) [3**Atticus Pramaxis MEC Plant Growth Regulator for Lawn (8 oz) Improve Turfgrass Quality and Control Growth - Trinexapac-Ethyl 11.3%**Atticus**$52.82**4.4★110 rev](https://www.amazon.com/dp/B0BJ3662N7) [4**The Andersons Governor G Granular Lawn Growth Regulator - Covers up to 20 000 sq ft (34 lb)**The Andersons**$87.55**4.4★245 rev](https://www.amazon.com/dp/B08BX4S7HZ) [5**Atticus Pramaxis MEC Plant Growth Regulator (1 Gal) - Growth Control of Turfgrasses - Trinexapac-Ethyl 11.3%**Atticus**$126.03**4.7★43 rev](https://www.amazon.com/dp/B0BCXB4J34)
### **Newest**
by launch date
[**Atticus Pramaxis MEC Plant Growth Regulator for Lawn (8 oz) Improve Turfgrass Quality and Control Growth - Trinexapac-Ethyl 11.3%**Atticus**$52.82**110 rev3y ago](https://www.amazon.com/dp/B0BJ3662N7) [**Atticus Pramaxis MEC Plant Growth Regulator (1 Gal) - Growth Control of Turfgrasses - Trinexapac-Ethyl 11.3%**Atticus**$126.03**43 rev3y ago](https://www.amazon.com/dp/B0BCXB4J34) [**Primo Maxx Plant Growth Regulator**Syngenta**$34.78**144 rev4y ago](https://www.amazon.com/dp/B0B4VBN389) [**The Andersons Governor G Granular Lawn Growth Regulator - Covers up to 20 000 sq ft (34 lb)**The Andersons**$87.55**245 rev6y ago](https://www.amazon.com/dp/B08BX4S7HZ) [**Quali-Pro T-Nex Plant Growth Regulator (Primo Maxx) 128oz White (83013998)**Quali-Pro**$126.50**389 rev7y ago](https://www.amazon.com/dp/B0B8S65YRM)
### **Trending**
90-day click momentum
[**Primo Maxx Plant Growth Regulator**Syngenta**$34.78**4.6★**▲ 12%**](https://www.amazon.com/dp/B0B4VBN389) [**The Andersons Governor G Granular Lawn Growth Regulator - Covers up to 20 000 sq ft (34 lb)**The Andersons**$87.55**4.4★**— 4%**](https://www.amazon.com/dp/B08BX4S7HZ) [**Atticus Pramaxis MEC Plant Growth Regulator for Lawn (8 oz) Improve Turfgrass Quality and Control Growth - Trinexapac-Ethyl 11.3%**Atticus**$52.82**4.4★**— 5%**](https://www.amazon.com/dp/B0BJ3662N7) [**Atticus Pramaxis MEC Plant Growth Regulator (1 Gal) - Growth Control of Turfgrasses - Trinexapac-Ethyl 11.3%**Atticus**$126.03**4.7★**— 6%**](https://www.amazon.com/dp/B0BCXB4J34) [**Quali-Pro T-Nex Plant Growth Regulator (Primo Maxx) 128oz White (83013998)**Quali-Pro**$126.50**4.6★**▼ 14%**](https://www.amazon.com/dp/B0B8S65YRM)
## **What buyers say about plant growth regulator**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**37%
*“Great quality product”*
**Advertised Vs Actual Product**19%
*“Works as advertised”*
**Cutting/Trimming**15%
*“I'm happy that I don't need to cut the grass every other day now”*
**Instructions/User Manual/Troubleshooting**12%
*“Follow the directions”*
**Plant Growth**4%
*“Bermuda already wants to spread — this product supercharges that”*
**Ease Of Use**4%
*“Way less mowing”*
### **What buyers complain about **
**Functionality-Overall**33%
*“Did not work”*
**Plant Growth**23%
*“growth was not slowed in the slightest”*
**Advertised Vs Actual Product**10%
*“Dont buy for a plant regulator its false advertising”*
**Value For Money**10%
*“Expensive with Marginal Results”*
**Color**7%
*“it did seem to turn a darker green”*
### **Top return reasons **
**Leak-Proof**43%
**Size-Overall**15%
**Advertised Vs Actual Product**9%
**Functionality-Overall**7%
**Instructions/User Manual/Troubleshooting**6%
**Value For Money**6%
**Plant Growth**4%
**Quality-Overall**3%
**Moist/Dry**3%
**Defective Material/Parts**3%
## **Common questions**
- **Is plant growth regulator profitable to sell on Amazon United States?**
- The niche generates $478K/yr across 5 tracked products. 90-day search growth is +170.6%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the plant growth regulator niche?**
- 4 brands and 18 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in plant growth regulator?**
- Top complaints mined from reviews: Functionality-Overall, Plant Growth, Advertised Vs Actual Product. The return rate is 0.5%.
- **When does demand for plant growth regulator peak?**
- Demand peaks in Apr–May–Jun–Jul–Aug; the busiest month runs 6.1× the quietest.
- **What does it cost to enter the plant growth regulator niche?**
- Listings span $34.78–$126.50; the average listing price is $85.53 (sweet spot $15–$100). The average incumbent carries 186 reviews — the moat a new listing must climb.
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