A method for producing, without the help of a substrate, a plurality of rooted cuttings includes inserting at least one unrooted cutting into pockets arranged successively in a longitudinal direction of a strip element. Each pocket has an opening at a top side facing a transverse direction and a bottom side that is at least partially closed. The strip element is formed at least in part of biodegradable material having a liquid retaining capacity of at least about 100 g liquid per 100 g of biodegradable material dry weight. The strip element has first and second wall-forming members fixed to each other in a spacer area adjacent each pocket and arranged to at least partly overlap in the longitudinal direction and to not fully overlap in the transverse direction. The first wall-forming member extends past the second wall-forming member in the transverse direction at the top side of each pocket.

A planter transport tray including a top face and a bottom face, a plurality of cavities disposed within the top face and protruding from the bottom face, each of the plurality of cavities forming a planter cavity, the planter cavity having a floor with one or more drainage apertures therein, a plurality of channels disposed within the top face and protruding from the bottom face, each channel of the plurality of channels connected between two adjacent planter cavities, and one or more protrusions disposed within the bottom face and protruding from the top face, where each planter cavity is adapted to accept a single plant planter therein, the single plant planter having a central aperture, the one or more protrusions configured to be inserted into the central aperture of the single plant planter thereby dislodging contents therein away from the central aperture for removal.