A mulching cover (10a) for a nursery pot (P) includes an apron (12) for shielding the mouth (M) of the pot (P) and a flange (14) for connecting the apron (12) to the rim (R) of the pot (P), the apron (12) and the flange (14) being cleaved by a radial breach (24a) for receiving a plant stem. A perforated annular trough (16) circumscribes the perimeter of the apron (12) where it meets the flange (14), the trough (16) serving to retain and dispense any water and fertilizer intercepted by the apron (12). The flange (14) includes a series of ribs (18), preferably annular, for engaging the mouth (M) of the pot (P), particularly where the mouth (M) includes annular troughs as is common. The apron (12), the trough (16), and the flange (14) are resilient and together form a spring biased to open the breach (24a) and urge the cover (10a) against the mouth (M) of the pot (P) to hold the cover (10a) in place.
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