Humidity Domes | 100% Guaranteed | Johnny's Selected Seeds

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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).

Humidity Domes | Comparison Chart (PDF)

11 Products

Sale

7" Clear Propagation Domes – 5 Count Humidity Domes

7" Clear Propagation Domes – 5 Count

Create the perfect healing chamber for grafted tomatoes.

Sale

2" Clear Acrylic Domes – 50 Count Humidity Domes

Johnny's Exclusive

2" Clear Acrylic Domes – 50 Count

Holds moisture and warmth for germination.

Sale

NanoDome – 5 Count Grow Lights and Carts

NanoDome – 5 Count

LED or T5HO Strip Light Accessory

Humidity dome with groove for resting a grow light.

Sale

3" Humidity Dome – 6 Count Grow Lights and Carts

3" Humidity Dome – 6 Count

Perma-Nest Tray Accessory

Standard domes for Perma-Nest Trays.

Sale

7" Clear Propagation Domes – 25 Count Humidity Domes

7" Clear Propagation Domes – 25 Count

Create the perfect healing chamber for grafted tomatoes.

Sale

5 1/2" Vented Humidity Dome – 4 Count Grow Lights and Carts

5 1/2" Vented Humidity Dome – 4 Count

Perma-Nest Tray Accessory

Tall domes for Perma-Nest Trays.

Sale

NanoDome – Single Grow Lights and Carts

NanoDome – Single

LED or T5HO Strip Light Accessory

Humidity dome with groove for resting a grow light.

Sale

3" Humidity Dome – 24 Count Grow Lights and Carts

3" Humidity Dome – 24 Count

Perma-Nest Tray Accessory

Rests on top of Perma-Nest trays.

Sale

NanoDome – 25 Count Grow Lights and Carts

NanoDome – 25 Count

LED or T5HO Strip Light Accessory

Humidity dome with groove for resting a grow light.

Sale

5 1/2" Vented Humidity Dome – 1 Count Grow Lights and Carts

5 1/2" Vented Humidity Dome – 1 Count

Perma-Nest Tray Accessory

Tall domes for Perma-Nest Trays.

Sale

2" Clear Acrylic Domes – 5 Count Humidity Domes

Johnny's Exclusive

2" Clear Acrylic Domes – 5 Count

Holds moisture and warmth for germination.

Out Of Stock