humidity dome
Worth a lookShows a sweet-spot price point ($28.29 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Incredible$28.29avg listing price — sweet spot $15–$100
Returns
Great1.3%return rate — above 5% kills the launch gate
Price range
Great$7.90–$89.78cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Great48%top-5 brand share — no brand owns this niche
Competition
Great30%top-5 click share — an open shelf
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Review moat
Okay1,566.63avg incumbent reviews — the moat a new listing must climb
Market size
Okay$189K$189K/yr · 298K searches
Conversion
Okay2.2%search→purchase rate — share of searches ending in a sale
Growth
Bad-9.9%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, humidity dome is a $189K/yr Amazon United States market (298K searches/yr). The top 5 brands hold 48% of demand. Demand peaks in Mar–Apr. Verdict: Worth a look — 59/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
humidity dome market data
- Units sold / yr
- 6K–8K
- avg 100–250/product
- Revenue / yr
- $170K–$226K
- units × avg price
- Conversion rate
- 2.2%
- Avg BSR
- #85
- Page quality
- 0%
- Prime
- 97%
- Sponsored
- 97%
- Out of stock
- 2.1%
- Avg brand age
- 37 months
- Avg seller age
- 170 days
Competition & brand share
Clicks spread well past the top 5 (30% combined) — an open shelf where new products get seen.Brands
33 falling
Sellers
55
Top-5 brand share
48%
Top 20: 92%
Top-5 click share
30%
Top 20: 67%
Open market
47%
- Gardzen12%
- RooTrimmer11%
- AC Infinity10%
- JOPY8%
- Bonviee7%
- SUMGROW5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -9.9% search growth over the last 90 days.Peak months: Mar, Apr · busiest ÷ quietest = 1.9×
Top humidity dome search terms
- humidity dome87K/yr
- humidity domes for plants53K/yr
- plant dome20K/yr
- plant humidity dome20K/yr
- clone dome20K/yr
- humidity dome for seedlings11K/yr
- humidity dome for plants8K/yr
- cloning dome7K/yr
- humidity domes9K/yr
- nursery pots with humidity dome11K/yr
Top humidity dome 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
JOPY 4 Inch Plastic Nursery Pots with Humidity Dome for Plants Clear Seed Starter Pots Seedlings Planting Pots for Garden Indoor and Outdoor Small Planter Containers with Drainage Holes (10 Pack)
JOPY$9.954.1★227 rev
AC Infinity Humidity Dome Heavy-Duty Germination Kit with 3 mm Thickest Dome Sturdy Drip Tray 5x8 Cell Seedling Tray Vented Height Extension Panels for Seed Starting Propagation Cloning Plants
AC Infinity$37.354.8★586 rev
Gardzen 5-Set Seed Starter Tray Kits Durable Plant Germination Trays with Humidity Vented Domes and Bases Ideal for Seed Starting Indoor Gardening and Greenhouse (Total 200 Cells)
Gardzen$18.764.6★6,530 rev
Mini Indoor Greenhouse Tabletop Garden Nursery Plant Cover Tent Humidity Domes for Home Gardening Germination and Seedling Propagation - 23x12x16.5 Inches
SUMGROW$23.884.1★368 rev
Yield Lab 7 Inch Clone Dome - 5 Pack Humidity Vented Domes Plant Growing Propagation Dome for Seedling Germination Soil & Hydroponic Horticulture
Yield Lab$33.974.3★1,966 rev
Newest
by launch date
Bluepro 36 Packs 5/4/3.5 Inch Clear Plant Pot Humidity Domes Transparent Seedling Domes Compatible with 5/4/3.5 Inch Reinforced Nursery Pots
Bluepro$15.877 rev
RooTrimmer 13 Inch Humidity Domes Garden Cloches for Plant Protection Protectors from Animals Garden Clear Plant Cover with Ventilation Holes 5 Pack
RooTrimmer$39.46141 rev
10 D 6.7 H Plant Protectors from Animals Garden Cloches for Seedlings Nursery Pots Durable Humidity Domes with Ventilation Holes Clear Plant Covers Mini Greenhouse for Plants 5-Pack
RooTrimmer$21.94140 rev
RooTrimmer 6 Inch Clear Nursery Pots with Humidity Dome 15 Pack Durable Seed Starting Pot with Drainage Holes Transparent Plastic Plant Seedling Pots for Indoor Gardening Plants
RooTrimmer$26.67722 rev
JOPY 4 Inch Plastic Nursery Pots with Humidity Dome for Plants Clear Seed Starter Pots Seedlings Planting Pots for Garden Indoor and Outdoor Small Planter Containers with Drainage Holes (10 Pack)
JOPY$9.95227 rev
Trending
90-day click momentum
MorTime 6 Pack Garden Cloche Plant Dome 7.3 D x 6.9 H Plastic Plant Bell Cover Reusable Mini Greenhouse with 18 Ground Securing Pegs & 10 Plant Labels for Outdoors Frost Freeze Protection
MorTime$13.594.4★
10 D 6.7 H Plant Protectors from Animals Garden Cloches for Seedlings Nursery Pots Durable Humidity Domes with Ventilation Holes Clear Plant Covers Mini Greenhouse for Plants 5-Pack
RooTrimmer$21.944.4★
RooTrimmer 6 Inch Clear Nursery Pots with Humidity Dome 15 Pack Durable Seed Starting Pot with Drainage Holes Transparent Plastic Plant Seedling Pots for Indoor Gardening Plants
RooTrimmer$26.674.4★
Yield Lab 7 Inch Clone Dome - 5 Pack Humidity Vented Domes Plant Growing Propagation Dome for Seedling Germination Soil & Hydroponic Horticulture
Yield Lab$33.974.3★
Bonviee 5 Packs Seed Starter Tray with Grow Light Elevated Seedling Starter Trays Kits with Adjustable Humidity Domes and Clear Cell Tray 12 Full Spectrum led lamp Beads for Plants Indoor-Clear
Bonviee$19.594.4★
What buyers say about humidity dome
What buyers praise and complain about, mined from review topics.What buyers love
“Grows good”
“Quality product; arrived on time”
“Worth every penny”
“I love the size of these”
“Sturdy construction and easy to assemble”
“As Advertised”
“EASY TO USE”
“Super durable”
“Easy set up”
“the lid stays moist”
What buyers complain about
“Really small”
“Not sturdy”
“Poor quality”
“seeds have sprouted”
“lids were thicker”
“a little pricey”
“Item did not function properly”
“would break easy”
“It got really hot”
“Already wet”
Top return reasons
Common questions
- Is humidity dome profitable to sell on Amazon United States?
- The niche generates $189K/yr across 64 tracked products. 2 of 7 products launched in the last 360 days are still selling. 90-day search growth is -9.9%. Flapen's verdict: Worth a look (59/100).
- How competitive is the humidity dome niche?
- 33 brands and 55 sellers compete. The top 5 products take 30% of clicks and top 5 brands hold 48% of demand.
- What do buyers complain about in humidity dome?
- Top complaints mined from reviews: Size-Overall, Strength, Quality-Overall. The return rate is 1.3%.
- When does demand for humidity dome peak?
- Demand peaks in Mar–Apr; the busiest month runs 1.9× the quietest.
- What does it cost to enter the humidity dome niche?
- Listings span $7.90–$89.78; the average listing price is $28.29 (sweet spot $15–$100). The average incumbent carries 1,567 reviews — the moat a new listing must climb.