A landscape edging system has edging strip material with ends having a laterally extending projection and adapted for overlapping relation when assembled and having end edges disposed in edge to edge relation. A stake clip member is mounted to each of the laterally extending projections and defines a stake receptacle. An installation stake extends through the vertically aligned stake receptacles and secures the end portions of adjacent strips of landscape edging material in said overlapping edge to edge relation and supports the landscape edging strip material in upright position. The installation stake and stake receptacles have interacting wedge shaped geometry that locks the ends of the strip material in assembly.