A picking device (1) of objects from a ground surface, comprising a roller (2) able to roll on the ground surface and comprising a plurality of radial elements (21) radially arranged about a rotation axis (X) and extending for a majority thereof parallel to the rotation axis (X) the arrangement of the radial elements (21) defines a plurality of intermediate openings extending for a majority thereof along a parallel direction to the rotation axis (X) and the radial elements (21) being configured so as to flex in such a way as to cause a dilation of the opening that is sufficient to enable passage of the objects internally of a volume delimited by a totality of the radial elements (21) and from there to inside collecting means comprising a central support body (3) that is at least partly hollow. A picking method of objects from a ground surface (100) comprises: a first step of reciprocal movement of at least a pair of radial elements (21) being a part of a roller (2) of a picking device (1) susceptible of being made to slide on the ground surface for the picking a following step of engulfing the objects internally of a volume defined externally of the plurality of radial elements (21) radially arranged about a central support element (3) and a following step of collecting the objects internally of collecting means, the collecting step comprising extraction of the objects from the volume.
