5x5 Plant Humidity Dome

Controlled Moisture for Small-Batch Growing

A compact humidity dome designed to support reliable germination in small-batch growing setups.

The 5" x 5" Extra-Strength Humidity Domes make it easy to manage temperature and moisture when starting microgreens or seedlings in 5" x 5" tray inserts. Built from extra-strength recycled plastic, these domes are durable and reusable—designed to hold up season after season without becoming brittle.

Available in two height options, they allow you to choose the right amount of headroom as seedlings grow.

Quick Highlights

• Designed for 5" x 5" microgreen tray inserts

• Helps maintain consistent humidity during germination

• Extra-strength construction for repeated use

• Adjustable vent for airflow and moisture control

• Available in short or tall height options

• Designed to rest gently on the tray rim (not airtight)

Size Options

• Short Dome: 2.5" tall

• Tall Dome: 5.5" tall

Footprint:

• Length: 5 inches

• Width: 5 inches

Why Gardeners Use These Domes

• Improves germination consistency

• Helps prevent moisture loss in early growth stages

• Allows controlled airflow as seedlings emerge

• Easy to remove as plants mature

• Ideal for small-batch or classroom growing

Compatibility & Use Notes

• Fits standard 5" x 5" tray inserts

• Designed to rest on the rim of the tray (does not seal or click)

• Not intended for use in direct sunlight

Use & Care

• Place dome over tray during germination

• Adjust vent to regulate airflow as needed

• Remove gradually once seedlings establish

• Clean between uses to extend product life

A Simple Tool for Better Starts

These compact humidity domes give small batches of microgreens and seedlings the stable environment they need early on—without complicated setups or fragile materials.