Seed Trays

Seed sowing is reaching its height in the middle of April. It is worth looking at the labour saving devices that were not available to our parents and grandparents.

Seed Tray Review

• Old wooden seed trays with slats and high sides are still in use. They need care when cleaning before new crops are sown.
• Plastic seed trays from rigid polypropylene with drainage holes can be used time and again and are easy to store and clean. There is generally a pattern of ridges to improve drainage.
• I like to use the thin plastic segmented inserts inside a normal seed tray like those in the photograph.
  • They are cheap enough to be disposable but last a couple of seasons with care.
  • They vary in the number of cells, 3×5, 8×5 or 4×6 for example.
  • Each cell can be for individual seeds or used for several fine seeds. It makes pricking out and planting far easier.
  • The cells can also be used for growing on after pricking out. 15 or 24 good plants can be raised in one tray.
  • Do not put plastic inserts in a tray without drainage holes or the compost may get water logged.
• Seed trays can be used to hold individual pots in one place. Up to 15 square 3″ pots can be put in one tray and they are a bit deeper than a standard tray.

Amazon supply seed trays in a variety of sizes and packs click here
Thompson & Morgan have a smaller selection of seed trays. Strange for a seed merchant I think.

Seed Tray Tips

• Take care when watering to get all the area damp. Be careful with small cells and those near to the drying sun.
• Label your seed sowing with the date and type of seed sown.
• Sterilise your used seed trays in Jeys fluid or similar
• To water from the bottom fill a larger container and stand the tray in the water until enough has been taken up.
• Do not leave seedlings too long before pricking out. Long roots soon become stunted.
• Carefully push out the cell contents from the bottom if using this product.