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Clear plastic dome cover, 11 by 22 inches

Ferry Morse Seed Co

Ferry Morse Seed Co 5221 Gro-Dome treatment 11 x 22

SKU CH-1YHR-EGWXK MPN 5221

Clear dome creates a humid microclimate for seed germination and cuttings, measuring 11 x 22 inches

  • TypeDome
  • FeaturesClear dome 11' x 22"
  • Clear dome retains humidity for seed germination
  • 11 x 22 inch size fits standard seed trays
  • Jiffy 5221 model designed for indoor starting
  • New condition ensures clean, ready-to-use dome
  • Lightweight construction allows easy placement and removal

Clear seedling dome

The Ferry Morse 5221 is a transparent cover measuring 11 by 22 inches. It sits over a standard seed tray to hold humidity and warmth during germination. Gardeners starting vegetables, herbs or flowers indoors use it to create a consistent microclimate. The clear material lets light through while reducing moisture loss.

Indoor growers needing humidity control

Suits anyone sowing seeds in trays who wants faster, more even emergence without daily misting. Not for growers using larger propagation benches or outdoor cold frames that require a taller or wider cover. Buyers needing adjustable vents should look at a different dome style.

11 by 22 inch footprint

The dome dimensions match common 11 x 22 inch seed flats, so the cover seals the tray edges without gaps. If your tray is a different size the dome will not sit flush and humidity will escape. Measure your tray before ordering to confirm the fit.

Highlights

  • Clear dome retains humidity for seed germination
  • 11 x 22 inch size fits standard seed trays
  • Jiffy 5221 model designed for indoor starting
  • New condition ensures clean, ready-to-use dome
  • Lightweight construction allows easy placement and removal

Specifications

BrandJiffy
Model5221
TypeDome
FeaturesClear dome
11' x 22"
Shipping weight0.45 kg
Package size546 × 287 × 76 mm

Questions about this item

Does the 11 x 22 inch Gro-Dome need a matching tray to hold soil and water?

Yes, the clear dome is designed to sit on a standard 11 by 22 inch propagation tray that you supply separately.

Can I place the 5221 dome over older seed-starting cells I already own?

The dome fits any flat or cell insert that matches the 11 by 22 inch footprint, so existing trays of that size will work.

How do I know the 5221 dome is creating the right humidity after I set it up?

Condensation forming on the clear interior surface shows the dome is trapping moisture as intended.

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