Humidity Domes for Seed Starting & Propagation
Bootstrap Farmer Humidity Domes
Crafted from BPA-free, durable plastic, these heavy-duty humidity domes are designed to withstand repeated use without cracking or warping. Season after season, they deliver dependable support for your seedlings and cuttings.
Why Use Humidity Domes?
Humidity domes are essential for creating a controlled environment that promotes healthy seed germination and successful plant propagation. By trapping moisture and maintaining a steady temperature, these domes simulate greenhouse-like conditions that are crucial for sprouting seeds. Consistent humidity keeps the soil from drying out, giving seeds the ideal environment to start the growth process and resulting in faster and more uniform germination.
With adjustable vents, our humidity domes allow growers to regulate airflow, preventing excessive moisture buildup that can lead to mold or mildew. This controlled ventilation is particularly helpful in reducing the risk of damping-off disease, which can hinder young seedlings.
Humidity domes also support efficient humidity levels for the propagation for cuttings. Instead of misting frequently to keep the plants hydrated, the domes hold in moisture and keep cuttings in a consistently humid environment, reducing maintenance while helping them root.
For more in-depth guidance, visit our article: Seed Starting 101
Versatile, Durable Humidity Domes for Every Growing Setup
Bootstrap Farmer offers a range of humidity domes designed to fit any scale of seed starting, from home gardens to larger propagation projects. Available in multiple sizes, including 5x5, 1010, and 1020, these domes are crafted to be compatible with a variety of Bootstrap Farmer trays. This flexibility ensures you can select the perfect setup to support healthy, consistent plant growth at any volume.
For more in-depth guidance, visit our article: How to Use Humidity Domes When Starting Seeds.
Humidity Dome Sizes and Tray Compatibility
| Dome Type | Dome Size(s) | Compatible Tray Sizes | Best Uses |
|---|---|---|---|
| 1020 Humidity Dome | 2.5" | 2.5" | 1020 shallow microgreen tray, mesh trays | Seed germination, microgreens |
| 1020 Extra Strength Humidity Dome | 6" | 2.5" 1020 heavy-duty tray | Taller seedlings, cloning, propagation |
| 1010 Humidity Dome | 6" | 1010 shallow and deep trays | Propagation and growth of medium seedlings |
| 5x5 Humidity Dome | 2.5" & 5.5" | 5x5 shallow and deep trays | Ideal for small batches, propagation |
| Blackout Dome | 2.5" & 6" | 1020 shallow and 1020 deep trays | Light-sensitive germination, microgreens |
When & How to Use Humidity Domes
- Starting Seeds: Place the dome on your seed tray immediately after sowing. Keep the vents closed to retain moisture until seeds start to germinate.
- Adjusting for Growth: Once seedlings emerge, gradually open the vents or remove the dome to reduce humidity and harden off the plants.
- Propagation of Cuttings: Maintain closed vents initially to keep moisture high, gradually opening them as roots develop.
For more in-depth guidance on propagation, visit our article: How to Propagate Roses from Cuttings
Blackout Domes for Specialty Microgreens
For crops that require complete darkness to germinate, like popcorn shoots, a blackout dome is the ideal solution. Designed to block out all light, our blackout domes create the perfect environment for these specialty microgreens like popcorn shoots, promoting taller stem growth and making harvesting easier.
These domes cover any of our 1020 trays and, with vents closed, maintain total darkness. Opening the vents provides just enough light control for short-stemmed crops that benefit from a day or two of extended dark conditions. Blackout domes are an essential tool for serious microgreen growers looking to optimize yield and quality.
For more in-depth guidance on microgreens, visit our article: Learn How to Grow Microgreens at Home: A Step-by-Step Guide
FAQ
How long should I keep the dome on my tray?
During germination, humidity domes help retain moisture, so you water less often. Once seeds sprout, remove the dome to prevent mold. Some growers gradually adjust seedlings by propping the dome for airflow. Our domes have vents to slowly reduce humidity, ensuring delicate seedlings get the light and air they need to thrive.
Can I use humidity domes outdoors?
Humidity domes are designed for indoor use, humidity domes can work in outdoor covered spaces. Avoid direct sunlight to prevent overheating and damage to the domes.
How should I clean my humidity domes?
After each use, rinse the dome with mild soap and water. For deep cleaning, a diluted vinegar or a 3% hydrogen peroxide solution helps remove any bacteria or mold. Check out How to Wash and Care for Seedling Trays for more recommendations.