Is fertilizer spikes profitable to sell on Amazon United States?

The niche generates $686K/yr across 20 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +38.0%. Flapen's verdict: Worth a look (55/100).

How competitive is the fertilizer spikes niche?

7 brands and 106 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 97% of demand.

What do buyers complain about in fertilizer spikes?

Top complaints mined from reviews: Plant Growth, Durability, Ease Of Use. The return rate is 0.2%.

When does demand for fertilizer spikes peak?

Demand peaks in Mar–Apr–May–Jun; the busiest month runs 3.5× the quietest.

What does it cost to enter the fertilizer spikes niche?

Listings span $4.36–$37.92; the average listing price is $11.78 (sweet spot $15–$100). The average incumbent carries 5,563 reviews — the moat a new listing must climb.

Fertilizer Spikes

Worth a look

Shows low returns (0.2%), but brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list.

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Conversion

Incredible16.3%

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

Market size

Good$686K

$686K/yr · 358K searches

Price range

Good$4.36–$37.92

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

Growth

Good+38.0%

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

Avg price

Okay$11.78

avg listing price — sweet spot $15–$100

Competition

Okay63%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad5,562.95

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad97%

top-5 brand share — brand-locked demand

Is fertilizer spikes profitable on Amazon?

According to Flapen's Amazon United States niche tracking, fertilizer spikes is a $686K/yr Amazon United States market (358K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Worth a look — 55/100.

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

fertilizer spikes market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 60K–80K; avg 2,000–2,500/product
Revenue / yr: $707K–$942K; units × avg price
Conversion rate: 16.3%
Avg BSR: #312
Page quality: 0%
Prime: 100%
Sponsored: 85%
Out of stock: 0.0%
Avg brand age: 48 months
Avg seller age: 142 days

Competition: brands, sellers & click share

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

Brands

7 rising

Sellers

106

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

63%

Top 20: 100%

Open market

Miracle-Gro56%
Jobe's Organics30%
Easy Gardener4%
The Old Farmer's Almanac4%
RAINFLOW4%
Miracle- Gro2%
Open — no brand owns it (1 brand, 1%)

fertilizer spikes demand & seasonality

Weekly Amazon search volume, last 104 weeks — +38.0% search growth over the last 90 days.

Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 3.5×

Open Trend

Top fertilizer spikes search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

fertilizer spikes82K/yr +22.6%12.2% conv.
jobes fertilizer spikes72K/yr +45.2%13.2% conv.
plant food spikes46K/yr +38.3%15.7% conv.
plant fertilizer sticks20K/yr +35.0%17.6% conv.
plant food sticks21K/yr +21.1%16.9% conv.
plant spikes17K/yr +32.5%5.5% conv.
fertilizer sticks15K/yr +36.8%12.5% conv.
jobes organics9K/yr +35.2%2.6% conv.
miracle grow sticks7K/yr +154.4%16.4% conv.
miracle grow plant food spikes7K/yr +96.2%16.8% conv.

All search terms

Top fertilizer spikes products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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

Top sellers

by 90-day click share

Miracle-Gro Indoor Plant Food Spikes for All Plants 48 Spikes

Miracle-Gro$5.024.7★865 rev

Miracle-Gro Tree & Shrub Plant Food Spikes 12 Spikes

Miracle-Gro$13.084.5★14,315 rev

Miracle-Gro Indoor Plant Food Spikes 48 Spikes (2-Pack)

Miracle-Gro$11.224.5★46,282 rev

Jobes 5001T Houseplant Fertilizer Food Spikes 50 Pack

Jobe's Organics$9.394.7★5,897 rev

Jobes Fertilizer Spikes for Flowering Plants 10-10-4 Time Release Fertilizer 50 Spikes per Package (2 Pack)

Jobe's Organics$9.784.6★1,728 rev

Newest

by launch date

Miracle-Gro Indoor Plant Food Spikes for All Plants 24 Spikes

Miracle- Gro$4.36140 rev

5mo ago

Miracle-Gro Indoor Plant Food Spikes for All Plants 48 Spikes

Miracle-Gro$5.02865 rev

8mo ago

RAINFLOW 90PCS Slow Release Fertilizer Spikes for Indoor Plants - Long Lasting Plant Food Spikes for Houseplants Orchids Potted Plants Easy to Use Fertilizer Sticks for Indoor Flowers Foliage Growth

RAINFLOW$6.30241 rev

1y ago

The Old Farmers Almanac Houseplant & Flower Plant Food Mini Spikes - NPK 5-5-5 for Continuous Feeding and Vibrant Colors (24 Mini Spikes)

The Old Farmer's Almanac$16.29154 rev

2y ago

The Old Farmers Almanac Tomato & Vegetable Plant Food Mini Spikes - NPK 6-4-6 for Continuous Feeding and Bountiful Harvests (24 Mini Spikes)

The Old Farmer's Almanac$16.39151 rev

2y ago

What reviews say buyers love and hate about fertilizer spikes

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

What buyers love

Plant Growth46%

“Producing good growth”

Ease Of Use18%

“Easy to apply”

Quality-Overall12%

“Good, reliable product, delivered on time and in good condition”

Value For Money11%

“Good value for money”

Advertised Vs Actual Product5%

“As Advertised”

Durability2%

“they last for a nice amount of time”

Functionality-Overall2%

“They work pretty quick too”

Strength1%

“Effective”

Size-Overall1%

“Nice and big for our trees”

Instructions/User Manual/Troubleshooting1%

“The instructions are clear”

What buyers complain about

Plant Growth19%

“The spikes arent balanced for general growth”

Durability15%

“They broke”

Ease Of Use9%

“Difficult to use”

Value For Money7%

“They are pricey”

Size-Overall7%

“Small spikes”

Functionality-Overall7%

“Does not desolve well”

Quality-Overall5%

“Manufacturer cheaped out”

Advertised Vs Actual Product4%

“Incorrect description”

Moist/Dry4%

“wet didn't help”

Material Quality4%

“No plastic cap”

Top return reasons

Size-Overall20%

Advertised Vs Actual Product19%

Plant Growth19%

Value For Money11%

Defective Material/Parts8%

Functionality-Overall6%

Ease Of Use3%