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Top Tips for Using Rootrainers

Written by Grandpa Haxnicks


Posted on 10 November 2009


Rootrainers are so easy to use and make seed sowing a pleasure. Here is a whole host of Top Tips, to get the most out of growing with them. The Five Inch Rule If you prepare the ground well and place in plants with a five-inch deep mature root system, little should go wrong. Plants suffer no check and are deep enough to withstand most vagaries of weather.

Rooting Cuttings

Rootrainers are ideal for cuttings. Take your cuttings, dip into rooting powder and just insert in a cell. Most cuttings benefit from a shorter pot to encourage early air pruning of the root system.  

Stem cuttings can be taken all year round but do best in Spring and Summer. 


For Large Seeds

When planting large seeds, such as beans, gently press the seed down into compost with your finger.

Large Leafed Plants

If using Rootrainers seed trays with large leafy plants use every other cell or use the Compact Rapid, which has been specially designed for this purpose.

Fragile Plants

Rootrainers are ideal for fragile plants, such as sweet peas.

Emerging Seedlings

As soon as seeds begin to emerge from the soil, remove lid or take trays out of the propagator. The Rootrainers lid cleverly becomes the drip tray.

Small Seeds

Small seeds can be first sown in seed trays and then pricked out into Rootrainers.

White Fly

One brassica grower claimed he had never suffered from white fly since he had used Rootrainers.

Under Bench Heating

Under bench heating will promote even quicker root growth, without inhibiting top growth.

Planting Out Plug Plants

Remember when planting out plug plants to make sure that the top of the soil plug is completely covered to allow the plant to seat.


Remember that as the season warms up you will need to water your plants and seedlings thoroughly to prevent drying out.

Water collected from a water butt should not be used to water seedlings. Use tap water which has stood for a couple of hours to allow the chlorine to disappear.

Houseplants Love Aquarium Water! Don't throw the water from your aquarium away, keep it in bottles for your houseplants and watch them flourish.


Azaleas like acidic soil and it is a good idea to water them once in a while with a mix of 2 tablespoons of white vinegar to 2 pints of water. If you have any tips that you'd like to share please add to the list below: Drop us a comment.



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