mound layering
noun
variants:
or less commonly mound layerage
Definition of mound layering
: a method of propagation in which various woody-stemmed plants (as currants, gooseberries, quinces) are cut back to the ground in early spring and the new shoots that they develop are covered with soil to a depth of six to eight inches to induce root growth which forms individual plants that can be removed in the fall
— called also stool layering