Seedling Trays


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Seedling trays are suitable for starting seeds or cuttings.

Most sizes will hold Jiffy Pellets or Rock Wool plugs (36mm x 40mm). Alternatively, use your seedling substrate of choice in the trays

45 Cell Tray

Length: 540mm
Width: 275mm
Shape: Round
Diameter: 48mm
Depth: 60mm

48 Cell Tray (For Preforma Plugs / loose seedling mix / 33mm Jiffy Pellets)

Length: 305mm (2 of these trays fit into a Large Rootit Propagation dome / Garland XL High Dome Propagator)

Width: 255mm
Shape: Roundish
Cavity Top Diameter: 35mm
Cavity Bottom Diameter: 25mm
Depth: 50mm


128 Cell Tray (For Preforma Plugs / loose seedling mix. Preforma plugs will sit proud inside this shallow tray, as they are taller than the tray)

Length: 540mm. Will need to be trimmed shorter along one short side (using scissors / box cutter) to fit flat into a ROOTiT Large Propagator.
Width: 275mm
Shape: Square
Cavity Top: 28mm
Cavity Bottom: 15mm
Depth: 40mm


77 Cell Tray (For EazyPlugs or Rockwool Plugs)

Length: 530mm
Width: 315mm
Shape: Square
Length: 37mm
Depth: 30mm


Soak seeds for 24 hours in distilled water

Plant seeds twice as deep as the width of the seed.

Germinating seeds 21°C – 32°C (25°C), shadowy warm location. Top of Fridge

Keep evenly moist

Rockwool: slice open – root must be 1.5cm long so doesn’t heave up and out.

7 – 10 days: Cotyledon Leaves

10 – 14 days: True leaves

Can apply quarter-strength Nuts now

Growing medium – evenly moist

Keep growing medium 2°C – 5°C warmer than ambient air temperature

Ambient temperature 24°C – growing medium 25°C – 27°C

Seedlings need at least 16 hours of light for 2 to 3 weeks

Seedlings require less intense light.