Is promix seed starting mix profitable to sell on Amazon United States?

The niche generates $10K/yr across 12 tracked products. 90-day search growth is -81.3%. Flapen's verdict: Skip it (34/100).

How competitive is the promix seed starting mix niche?

10 brands and 47 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 81% of demand.

What do buyers complain about in promix seed starting mix?

Top complaints mined from reviews: Plant Growth, Value For Money, Quality-Overall. The return rate is 0.2%.

When does demand for promix seed starting mix peak?

Demand peaks in Jan–Feb–Mar; the busiest month runs 15.9× the quietest.

What does it cost to enter the promix seed starting mix niche?

Listings span $10.28–$111.15; the average listing price is $44.25 (sweet spot $15–$100). The average incumbent carries 1,175 reviews — the moat a new listing must climb.

promix seed starting mix

Skip it

Soft demand (-81.3% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Avg price

Incredible$44.25

avg listing price — sweet spot $15–$100

Price range

Great$10.28–$111.15

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

Review moat

Good1,175.42

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay81%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Competition

Bad76%

top-5 click share — a locked-up shelf

Conversion

Bad1.5%

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

Market size

Bad$10K

$10K/yr · 16K searches

Growth

Bad-81.3%

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

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, promix seed starting mix is a $10K/yr Amazon United States market (16K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Jan–Feb–Mar. Verdict: Skip it — 34/100.

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

promix seed starting mix market data

Units sold / yr: 750–1K; avg 0–100/product
Revenue / yr: $33K–$44K; units × avg price
Conversion rate: 1.5%
Avg BSR: #899
Page quality: 0%
Prime: 33%
Sponsored: 50%
Out of stock: 0.0%
Avg brand age: 87 months
Avg seller age: 185 days

Competition & brand share

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 flat

Sellers

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

14%

My Garden Pool33%
PREMIER HORTICULTURE17%
Premier Horticulture17%
Premier Horticulture Inc8%
Espoma5%
Miracle-Gro5%
Open — no brand owns it (4 brands, 14%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -81.3% search growth over the last 90 days.

Peak months: Jan, Feb, Mar · busiest ÷ quietest = 15.9×

Open Trend

Top promix seed starting mix 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 12 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Promix Premier Horticulture Organic Pro Seed Starting Mix; 16 qt with My Garden Pool PH Soil Test Strips 20 ct and Gardening Claw Gloves and Garden-IQ Smart Gardening AI Assistant!

My Garden Pool$25.514.1★24 rev

Premier Horticulture 1016041RGCE Organic Pro Seed Starting Mix 16 Quart

PREMIER HORTICULTURE$26.624.6★308 rev

Premier B10281RG Pro Mix Loose with Mycorrhizae 2.8 Cubic Feet

Premier Horticulture$45.564.8★229 rev

Espoma Organic Seed Starter Premium Potting Soil Mix - All Natural & Organic Seed Starting Mix with Mycorrhizae. for Organic Gardening 16 qt Bag - Pack of One

Espoma$22.574.4★2,132 rev

Miracle-Gro Indoor Potting Mix for Seed Starting 8 qt. (2-Pack)

Miracle-Gro$10.284.6★8,805 rev

Newest

by launch date

Old Potters Germination Mix with Peat Moss Fine Perlite & Vermiculite - Perfect for Seed Germination Plugs and Cutting Propagation - Balanced pH Enhanced Drainage and Aeration 24 Quarts.

Old Potters$27.13239 rev

2y ago

Promix Premier Horticulture Organic Pro Seed Starting Mix; 16 qt with My Garden Pool PH Soil Test Strips 20 ct and Gardening Claw Gloves and Garden-IQ Smart Gardening AI Assistant!

My Garden Pool$25.5124 rev

2y ago

Miracle-Gro Indoor Potting Mix for Seed Starting 8 qt. (2-Pack)

Miracle-Gro$10.288,805 rev

6y ago

Coast of Maine Organic & Natural Sprout Island Blend Seed Starter - Seed Germination & Root Plant Cuttings w/ Composted Manure Mycorrhizae Worm Castings & Kelp - Enhanced Drainage (8 Qt)

Coast of Maine$16.241,054 rev

7y ago

PRO-Mix Premium Organic Vegetable & Herb Mix (2 cu. ft.) Promix Soil

PRO-MIX$40.56411 rev

7y ago

What buyers say about promix seed starting mix

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

What buyers love

Plant Growth38%

“Great soil for starting seeds”

Quality-Overall22%

“Excellent product”

Value For Money11%

“Good value”

Ease Of Use4%

“Very Convenient”

Moist/Dry4%

“It holds the moisture very well”

Advertised Vs Actual Product4%

“Product as described”

Ease Of Cleaning2%

“Other plants are clean”

Weight Light2%

“Super light allowing seeds”

Strength1%

“Sturdy”

Soft Feel1%

“This is perfect soft and loamy”

What buyers complain about

Plant Growth15%

“Poor germination rate”

Value For Money10%

“Feeling ripped off for the price I paid”

Quality-Overall9%

“Poor quality”

Water Resistance8%

“Does not hold water well”

Smell5%

“The odor was noxious”

Contamination4%

“It has fungus gnats in it”

Moist/Dry3%

“Was very dry mix”

Wood Quality3%

“large pieces of wood in the mix”

Material Quality3%

“Too dense”

Ease Of Use3%

“can be difficult to put on”

Top return reasons

Value For Money21%

Size-Overall19%

Advertised Vs Actual Product15%

Plant Growth12%

Smell6%

Leak-Proof6%

Functionality-Overall4%