Q. When considering top dressing for the lawn, what is the ratio of soil sharpsand and multi-purpose compost for me to mix?
A. Generally a top dressing will be a combination of loam,
sand and peat, not multi-purpose compost, which can contain weed seeds. The mix
is dependent on soil type: for a loamy soil 3 parts sand to 3 parts loam to 1
part peat. The sand needs to be lime free and suitable for top dressing, no sea
sand and grain size is important so seek advice at the garden centre.
The top
dressing should be dry to get an even mix. For heavy clay soils increase the
amount of sand and reduce the amount of loam. For sandy soils reduce the amount
of sand. Top dressing is quite a technical subject so it’s worth researching in
depth for the best results.
Reference: Springtime Lawn Care Tips From Jared, The Lawn Guy