Mondi Mini Greenhouse 4 inch Propagation Domes with Vents

Mondi 4 Inch Mini Greenhouse Dome with Easy Vents

Fresh cuttings and germinating seeds need a pocket of humid air while roots form. This Mondi mini greenhouse dome creates that pocket over a standard 10 x 20 propagation tray. It measures 21.5 by 11 inches at the base and stands 4.2 inches tall. That height gives plenty of room for cubes, plugs and short cuttings without crowding the leaves. Mondi's Perfect Fit rim seats the dome on a 1020 tray and helps hold moisture inside. Two Easy Vents are molded into the top and open with two fingers. Closed, they keep humidity high during the first days after sticking cuttings. Opened a little at a time, they bring in fresh air and help plants adjust before the dome comes off. The dome is made from Mondi's Avara material, a thick, food-grade plastic that is crystal clear. Clear walls let light through to the plants and make it easy to check for roots or mold. The material is BPA-free and does not off-gas, and Mondi notes that it contains reclaimed ocean plastic. It is reusable season after season and recyclable at the end of its life.

Using a Humidity Dome for Cuttings and Seed Starts

Set the tray up first, with cubes or plugs soaked and drained so no water pools in the bottom. Stick the cuttings, mist them lightly and set the dome firmly on the tray. Keep both vents closed for the first few days while the cuttings have no roots. Watch the inside of the walls, and if heavy droplets form, crack a vent to let excess moisture escape. As white root tips appear, open the vents a little more each day. That gradual change toughens the leaves before the cuttings face open room air. Seed trays follow the same pattern, with the vents opened once most seeds have sprouted. Under a heat mat, check moisture more often, since warm media dries faster even under cover. Keep strong lights at a distance so the enclosed air does not overheat. When plants are ready, lift the dome off for a few hours a day before removing it for good. Wash the dome with mild soap between rounds to keep mold and algae from carrying over. A clean dome stays clear and gives the next batch the same bright start.

Key Features

• 4.2 Inch Height: Headroom for cubes, plugs and short cuttings.
• Fits 1020 Trays: Perfect Fit rim seats on standard 10 x 20 trays.
• Two Easy Vents: Two-finger vents for gradual humidity control.
• Crystal Clear: Thick Avara material lets light reach the plants.
• BPA-Free: Food-grade plastic that does not off-gas.
• Reusable: Built for repeated propagation cycles and recyclable afterward.

Technical Specifications