---
title: "13-13-13 Fertilizer — $40K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/13-13-13-fertilizer"
last_updated: "2026-08-09T07:12:40.078Z"
locale: en
meta:
description: "Niche score 39/100 · $40K/yr market · 41K searches/yr · $29.38 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $40K/yr market · 41K searches/yr · $29.38 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "13-13-13 Fertilizer — $40K/yr Amazon US Niche (2026) - Flapen"
---
# **13-13-13 fertilizer**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 10Growth 43Conversion 42Competition 9Returns 98Price range 92Avg price 95Brand share 0Review moat 70Quality gap 25
**Returns**
**Incredible****0.3%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$29.38**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$13.43–$60.30**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****711.63**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+14.1%**
90-day search growth — must beat 0% to launch
**Conversion**
**Okay****3.4%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$40K**
$40K/yr · 41K searches
**Competition**
**Bad****90%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, 13-13-13 fertilizer is a $40K/yr Amazon United States market (41K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Skip it — 39/100.
Data updated Jul 15, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **13-13-13 fertilizer market data**
- **Units sold / yr**
- **1K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$37K–$44K**
- units × avg price
- **Conversion rate**
- **3.4%**
- **Avg BSR**
- **#273**
- **Page quality**
- **0%**
- **Prime**
- **88%**
- **Sponsored**
- **88%**
- **Out of stock**
- **4.7%**
- **Avg brand age**
- **85 months**
- **Avg seller age**
- **145 days**
## **Competition & brand share**
The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**11**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**90%**
Top 20: 100%
**Open market**
**0%**
- GARDENWISE75% - Pendelton Turf Supply12% - Supply Solutions5% - Scotts4% - CountryMax3%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +14.1% search growth over the last 90 days.
2K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 9.0×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/13-13-13-fertilizer/trend)
## **Top 13-13-13 fertilizer search terms**
- **13-13-13 fertilizer**15K/yr+6.1%3.3% conv. - **13 13 13 fertilizer**12K/yr+18.3%3.0% conv. - **triple 13 fertilizer**8K/yr+54.5%3.4% conv. - **13-13-13 fertilizer 50 lb bag**6K/yr-14.4%1.0% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/13-13-13-fertilizer/search-terms)
## **Top 13-13-13 fertilizer 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%$6K30%$12K45%$18K60%$24K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Gardenwise 13-13-13 Slow Release Granular Fertilizer All Purpose Plant Food 13 13 13 for Outdoor Grass Vegetables Roses Flowers Shrubs Trees. Lawns Gardens Potted Plants (1/2 Quart)**GARDENWISE**$13.43**4.6★163 rev](https://www.amazon.com/dp/B0CQBYLRMH) [2**Gardenwise 13-13-13 Slow Release Granular Fertilizer All Purpose Plant Food 13 13 13 for Outdoor Grass Vegetables Roses Flowers Shrubs Trees. Lawns Gardens Potted Plants (5 quarts)**GARDENWISE**$35.17**4.6★163 rev](https://www.amazon.com/dp/B0CQC59F8J) [3**13-13-13 Garden Grower Fertilizer with Pelletized Lime and Micronutrients (6 lbs)**Pendelton Turf Supply**$25.92**4.6★320 rev](https://www.amazon.com/dp/B07GT8JCSS) [4**Gardenwise 13-13-13 Slow Release Granular Fertilizer All Purpose Plant Food 13 13 13 for Outdoor Grass Vegetables Roses Flowers Shrubs Trees. Lawns Gardens Potted Plants (2 quarts)**GARDENWISE**$19.89**4.6★163 rev](https://www.amazon.com/dp/B0CQBR3Q4K) [5**Supply Solutions 16-16-16 Complete Lawn & Garden All Purpose Granular Fertilizer - The Ultimate Plant Food for Lush Greenery & Vibrant Blooms - for All Plants Vegetables Fruits and Berries - 5lbs**Supply Solutions**$25.33**4.5★373 rev](https://www.amazon.com/dp/B0CCBW8NK6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**CountryMax 15-15-15 All Purpose Fertilizer 50 lb Bag Balanced Plant Food for Flowers & Vegetable Beds Raised Gardens Lawns & Grass Supports Soil Health and Growth**CountryMax**$60.30**32 rev5mo ago](https://www.amazon.com/dp/B0GQXK6VGP) [**Gardenwise 13-13-13 Slow Release Granular Fertilizer All Purpose Plant Food 13 13 13 for Outdoor Grass Vegetables Roses Flowers Shrubs Trees. Lawns Gardens Potted Plants (1/2 Quart)**GARDENWISE**$13.43**163 rev2y ago](https://www.amazon.com/dp/B0CQBYLRMH) [**Gardenwise 13-13-13 Slow Release Granular Fertilizer All Purpose Plant Food 13 13 13 for Outdoor Grass Vegetables Roses Flowers Shrubs Trees. Lawns Gardens Potted Plants (5 quarts)**GARDENWISE**$35.17**163 rev2y ago](https://www.amazon.com/dp/B0CQC59F8J) [**Gardenwise 13-13-13 Slow Release Granular Fertilizer All Purpose Plant Food 13 13 13 for Outdoor Grass Vegetables Roses Flowers Shrubs Trees. Lawns Gardens Potted Plants (2 quarts)**GARDENWISE**$19.89**163 rev2y ago](https://www.amazon.com/dp/B0CQBR3Q4K) [**Gardenwise 13-13-13 Slow Release Granular Fertilizer All Purpose Plant Food 13 13 13 for Outdoor Grass Vegetables Roses Flowers Shrubs Trees. Lawns Gardens Potted Plants (4 quarts)**GARDENWISE**$30.30**163 rev2y ago](https://www.amazon.com/dp/B0CQCCV3NB)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**CountryMax 15-15-15 All Purpose Fertilizer 50 lb Bag Balanced Plant Food for Flowers & Vegetable Beds Raised Gardens Lawns & Grass Supports Soil Health and Growth**CountryMax**$60.30**4.7★**▲ 113%**](https://www.amazon.com/dp/B0GQXK6VGP) [**Scotts Turf Builder Southern Lawn Food 14.06 lbs.**Scotts**$24.71**4.6★**▲ 66%**](https://www.amazon.com/dp/B000FBMI36) [**Gardenwise 13-13-13 Slow Release Granular Fertilizer All Purpose Plant Food 13 13 13 for Outdoor Grass Vegetables Roses Flowers Shrubs Trees. Lawns Gardens Potted Plants (5 quarts)**GARDENWISE**$35.17**4.6★**▲ 21%**](https://www.amazon.com/dp/B0CQC59F8J) [**Gardenwise 13-13-13 Slow Release Granular Fertilizer All Purpose Plant Food 13 13 13 for Outdoor Grass Vegetables Roses Flowers Shrubs Trees. Lawns Gardens Potted Plants (2 quarts)**GARDENWISE**$19.89**4.6★**▲ 14%**](https://www.amazon.com/dp/B0CQBR3Q4K) [**Gardenwise 13-13-13 Slow Release Granular Fertilizer All Purpose Plant Food 13 13 13 for Outdoor Grass Vegetables Roses Flowers Shrubs Trees. Lawns Gardens Potted Plants (1/2 Quart)**GARDENWISE**$13.43**4.6★**— 3%**](https://www.amazon.com/dp/B0CQBYLRMH)
**~~View all trending →~~**
## **What buyers say about 13-13-13 fertilizer**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Plant Growth**46%
*“It had greatly helped increase of growth in our yard”*
**Value For Money**16%
*“Good for the price”*
**Advertised Vs Actual Product**13%
*“The product is as advertised”*
**Quality-Overall**8%
*“Excellent product”*
**Color**4%
*“Green grass”*
**Recycle/Reuse**4%
*“The resealable bag was nice”*
**Instructions/User Manual/Troubleshooting**4%
*“Followed directions exactly”*
### **What buyers complain about **
**Plant Growth**33%
*“its hit or miss on these bags of fertilizer”*
**Contamination**14%
*“Be careful”*
**Weight Heavy**14%
*“Bag was not weight as promised”*
**Advertised Vs Actual Product**7%
*“Bag was not weight as promised”*
**Color**7%
*“My grass was just not very green”*
### **Top return reasons **
**Value For Money**32%
**Size-Overall**21%
**Advertised Vs Actual Product**20%
**Functionality-Overall**6%
**Leak-Proof**5%
**Defective Material/Parts**3%
**Plant Growth**3%
**Contamination**2%
**Weight Heavy**2%
**Hard Feel**2%
## **Common questions**
- **Is 13-13-13 fertilizer profitable to sell on Amazon United States?**
- The niche generates $40K/yr across 8 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +14.1%. Flapen's verdict: Skip it (39/100).
- **How competitive is the 13-13-13 fertilizer niche?**
- 5 brands and 11 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in 13-13-13 fertilizer?**
- Top complaints mined from reviews: Plant Growth, Contamination, Weight Heavy. The return rate is 0.3%.
- **When does demand for 13-13-13 fertilizer peak?**
- Demand peaks in Mar–Apr–May–Jun; the busiest month runs 9.0× the quietest.
- **What does it cost to enter the 13-13-13 fertilizer niche?**
- Listings span $13.43–$60.30; the average listing price is $29.38 (sweet spot $15–$100). The average incumbent carries 712 reviews — the moat a new listing must climb.
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