Automatic distributor for transplanting machines of plants (P) rooted in clods (Z), comprising a feeding device (1) for the plants (P) and means (8) for making at least a transplanting furrow in the soil, wherein a first pickup system (2) is disposed to pick up the plants from said feeding device (1) and take them to an intermediate position; retaining means (3, 4) are provided to temporarily keep the plants (P) in said intermediate position; a second pickup system (5) is disposed to pick up the plants (P) from said intermediate position and take them into said transplanting furrow.