Is mycorrhizal fungi profitable to sell on Amazon United States?

The niche generates $610K/yr across 25 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is +8.5%. Flapen's verdict: Worth a look (58/100).

How competitive is the mycorrhizal fungi niche?

12 brands and 47 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 75% of demand.

What do buyers complain about in mycorrhizal fungi?

Top complaints mined from reviews: Size-Overall, Value For Money, Advertised Vs Actual Product. The return rate is 0.5%.

When does demand for mycorrhizal fungi peak?

Demand peaks in Mar–Apr–May; the busiest month runs 2.4× the quietest.

What does it cost to enter the mycorrhizal fungi niche?

Listings span $6.92–$58.08; the average listing price is $20.32 (sweet spot $15–$100). The average incumbent carries 2,897 reviews — the moat a new listing must climb.

mycorrhizal fungi

Worth a look

Shows low returns (0.5%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Avg price

Great$20.32

avg listing price — sweet spot $15–$100

Price range

Great$6.92–$58.08

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Great7.6%

search→purchase rate — share of searches ending in a sale

Market size

Good$610K

$610K/yr · 394K searches

Brand share

Good75%

top-5 brand share — brands hold most of the demand

Competition

Okay55%

top-5 click share — leaders hold, buyers still browse

Growth

Okay+8.5%

90-day search growth — must beat 0% to launch

Review moat

Okay2,896.76

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, mycorrhizal fungi is a $610K/yr Amazon United States market (394K searches/yr). The top 5 brands hold 75% of demand. Demand peaks in Mar–Apr–May. Verdict: Worth a look — 58/100.

Data updated Jul 15, 2026 · scored weekly · How we score niches

mycorrhizal fungi market data

Units sold / yr: 30K–40K; avg 1,500–2,000/product
Revenue / yr: $610K–$813K; units × avg price
Conversion rate: 7.6%
Avg BSR: #548
Page quality: 0%
Prime: 100%
Sponsored: 84%
Out of stock: 0.0%
Avg brand age: 72 months
Avg seller age: 160 days

Competition & brand share

The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

Top-5 brand share

75%

Top 20: 100%

Top-5 click share

55%

Top 20: 96%

Open market

20%

Xtreme Gardening28%
DYNOMYCO22%
Big Foot12%
plantonix7%
Dr.Raifya's6%
TPS NUTRIENTS5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +8.5% search growth over the last 90 days.

Peak months: Mar, Apr, May · busiest ÷ quietest = 2.4×

Open Trend

Top mycorrhizal fungi search terms

mycorrhizal fungi139K/yr -0.6%8.3% conv.
mycorrhizae82K/yr -4.0%7.1% conv.
mycorrhizae for plants29K/yr +12.8%6.6% conv.
mykos22K/yr +42.8%9.8% conv.
mycorrhizal inoculant14K/yr +36.7%6.6% conv.
mycorrhizal13K/yr +34.4%4.9% conv.
mycorrhizal fungi for plants11K/yr +20.3%7.2% conv.
mykos mycorrhizae13K/yr +11.7%10.2% conv.
big foot mycorrhizae for plants11K/yr -28.0%9.0% conv.
dynomyco9K/yr +14.0%5.3% conv.

All search terms

Top mycorrhizal fungi 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Xtreme Gardening Mykos Mycorrhizae for Plants- Granular Mycorrhizal Fungi Root Inoculant OMRI Listed Organic Biofertilizer for Stronger Roots & Nutrient Uptake (2.2 lbs)

Xtreme Gardening$24.514.8★8,331 rev

DYNOMYCO Granular Mycorrhizal Fungi Inoculant 50g / 1.76oz Boosts Root Growth Yields & Nutrient Uptake 900 Propagules/g Concentrated Granules & OMRI Listed Biofertilizer for Plant Growth

DYNOMYCO$11.614.6★6,472 rev

Xtreme Gardening Mykos Mycorrhizae for Plants- Granular Mycorrhizal Fungi Root Inoculant OMRI Listed Organic Biofertilizer for Stronger Roots & Nutrient Uptake (1 lb)

Xtreme Gardening$22.454.8★8,331 rev

DYNOMYCO Granular Mycorrhizal Fungi Inoculant 100g / 3.5oz Boosts Root Growth Yields & Nutrient Uptake 900 Propagules/g Concentrated Granules & OMRI Listed Biofertilizer for Plant Growth

DYNOMYCO$17.434.6★6,472 rev

Big Foot Mycorrhizae - Double Your Plant Size Easy to Use Made in USA Treats 30 Plants (7 500 Mycorrhizal Spores) Fertilizer 4 Ounce Package

Big Foot$13.304.7★1,238 rev

Newest

by launch date

Dr.Raifyas Mycorrhizal Fungi Inoculant 10X Concentrated Up to 700 Plants Organic Root Stimulator to Boosts Roots Growth & Yield Naturally Safe for Houseplants Garden Vegetables & Fruits 2.2lb

Dr.Raifya's$23.16114 rev

7mo ago

Dr.Raifyas Mycorrhizal Fungi Inoculant 10X Concentrated Up to 150 Plants Organic Root Stimulator to Boosts Roots Growth & Yield Naturally Safe for Houseplants Garden Vegetables & Fruits 8 oz

Dr.Raifya's$13.89114 rev

7mo ago

DYNOMYCO Granular Mycorrhizal Fungi Inoculant 50g / 1.76oz Boosts Root Growth Yields & Nutrient Uptake 900 Propagules/g Concentrated Granules & OMRI Listed Biofertilizer for Plant Growth

DYNOMYCO$11.616,472 rev

8mo ago

RootMax - Mycorrhizal Fungi (75 g/2.64 oz) | Rooting Powder for All Plants Trees Flowers & Edibles | Direct to Root Inoculant | Treats 15+ Plants

Grow Mate$9.89996 rev

1y ago

Mycorrhizal Fungi Organic Root Enhancer for Plants Super Potent 100 Spores Per Gram 5-Strain Blend Rapid Results for Gardens Houseplants Lawns Mycorrhizae Smart Grower 125 Grams for 125 Plants

Smart Grower$19.62768 rev

2y ago

What buyers say about mycorrhizal fungi

What buyers praise and complain about, mined from review topics.

What buyers love

Plant Growth53%

“very healthy plants”

Quality-Overall18%

“Great quality amazing growth rate durability of the packaging is great easy to use”

Value For Money8%

“Good price”

Ease Of Use7%

“Easy to use”

Advertised Vs Actual Product4%

“As advertised”

Smell1%

“haha - it smells like good mushrooms”

Strength1%

“Solid results”

Color1%

“follow instructions great size enough for a couple of plants I like the color of it too”

Eco Friendliness1%

“Healthier environment for healthier plant growth”

Moist/Dry1%

“Improves hydration to help plants thrive”

What buyers complain about

Size-Overall25%

“The bag you get is incredibly tiny”

Value For Money15%

“Too expensive for what you get”

Advertised Vs Actual Product8%

“The description and pictures are deceiving”

Plant Growth7%

“so many of my plants were very small”

Smell6%

“doesnt have a strong smell”

Recycle/Reuse3%

“came in a non resealable bag”

Contamination3%

“This has a massive list of bacteria”

Quality-Overall3%

“I would say this is a poor value for a low quality product that I am too afraid to even try on my house plants”

Functionality-Overall3%

“The item dont work as described”

Color3%

“Great white also cheaped out on the scoop they used to provide”

Top return reasons

Size-Overall32%

Value For Money16%

Advertised Vs Actual Product16%

Functionality-Overall10%

Leak-Proof10%

Plant Growth5%

Smell2%

Defective Material/Parts1%

Contamination1%

Product Condition1%

Common questions

Is mycorrhizal fungi profitable to sell on Amazon United States?: The niche generates $610K/yr across 25 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is +8.5%. Flapen's verdict: Worth a look (58/100).
How competitive is the mycorrhizal fungi niche?: 12 brands and 47 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 75% of demand.
What do buyers complain about in mycorrhizal fungi?: Top complaints mined from reviews: Size-Overall, Value For Money, Advertised Vs Actual Product. The return rate is 0.5%.
When does demand for mycorrhizal fungi peak?: Demand peaks in Mar–Apr–May; the busiest month runs 2.4× the quietest.
What does it cost to enter the mycorrhizal fungi niche?: Listings span $6.92–$58.08; the average listing price is $20.32 (sweet spot $15–$100). The average incumbent carries 2,897 reviews — the moat a new listing must climb.