Tools & Supplies Seed Starting Supplies Trays, Domes, and Flats Humidity Domes
A clear plastic humidity dome for use in starting garden seeds.
Humidity Domes
Provide the perfect environment for germination by covering your flat with a plastic dome that helps retain moisture and warmth. Remove the dome once the seeds emerge to reduce the risk of disease. Use in conjunction with a heat mat for faster, more uniform germination of heat-loving crops. Choose from our durable clear plastic humidity domes and our propagation domes. To compare products, including compatibility across products, see our Humidity Domes Dynamic Comparison Chart (at right).
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Sale
Johnny's Exclusive
2" Clear Acrylic Domes – 5 Count Humidity Domes
Holds moisture and warmth for germination.
Holds moisture and warmth for germination.
Sale
7" Clear Propagation Domes – 5 Count Humidity Domes
Create the perfect healing chamber for grafted tomatoes.
Create the perfect healing chamber for grafted tomatoes.
Sale
NanoDome – 5 Count Grow Lights and Carts
Humidity dome with groove for resting a grow light.
Humidity dome with groove for resting a grow light.
Sale
3" Humidity Dome – 6 Count Grow Lights and Carts
Standard domes for Perma-Nest Trays.
Standard domes for Perma-Nest Trays.
Sale
Johnny's Exclusive
2" Clear Acrylic Domes – 50 Count Humidity Domes
Holds moisture and warmth for germination.
Holds moisture and warmth for germination.
Sale
3" Humidity Dome – 24 Count Grow Lights and Carts
Rests on top of Perma-Nest trays.
Rests on top of Perma-Nest trays.
Sale
7" Clear Propagation Domes – 25 Count Humidity Domes
Create the perfect healing chamber for grafted tomatoes.
Create the perfect healing chamber for grafted tomatoes.
Sale
5 1/2" Vented Humidity Dome – 4 Count Grow Lights and Carts
Tall domes for Perma-Nest Trays.
Tall domes for Perma-Nest Trays.
Sale
5 1/2" Vented Humidity Dome – 1 Count Grow Lights and Carts
Tall domes for Perma-Nest Trays.
Tall domes for Perma-Nest Trays.
Sale
NanoDome – Single Grow Lights and Carts
Humidity dome with groove for resting a grow light.
Humidity dome with groove for resting a grow light.
Sale
NanoDome – 25 Count Grow Lights and Carts
Humidity dome with groove for resting a grow light.
Humidity dome with groove for resting a grow light.
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