Garden trowels evolved from Mason's trowels. Before they became cupped, garden trowels looked like this one which is still used in Holland for setting bulbs. The blade is a stout 1/8" thick forge-welded to the shank and sharpened all along both of its edges. If you start ground covers in traditional flats (as opposed to celled plastic trays) you'll find this bulb setter is excellent for slicing and setting starts. It's also useful for dividing clumps of iris and similarly rooted species.