How To Fill A High Raised Garden Bed. Let it break down for a couple weeks then plant your transplants in the bed. RHS MEMBERS GET FREE ADVICE FROM OUR TEAM OF EXPERTS.
Then replace the topsoil enriched with organic matter such as well rotted compost or manure and fertiliser firming in layers to prevent undue settling. Fill the bed up nearly to the top with topsoil and compost. If you want to grow plants that love good drainage such as alpines fill the base with builders rubble or chippings.
Get the raised beds I use in my garden.
I filled my 15cm high beds with a mixture of spent compost from summer bedding displays soil mined from spoil heaps at the ends of the plot leaf mould and compost from the garden bins and - in time - the allotment compost heap. Take the grass and layer it on the bottom of the raised beds then fill over the grass clippings with other materials like wood chips compost or leaves. It sits below the root zone. Turn Garden and Kitchen waste into useful material to fill garden beds and save money The Organic waster will decompose over the years and provide nutrition for plants to use Hulgelkulture tends to hold water very well the garden waste works as a sponge to hold moisture.
