Throughout his life Watt pursued an interest in botany and is known to have cultivated rare species in his greenhouse at his home, 71 Dee Street, Aberdeen. This passion for plants is apparent in his jewellery and enamelwork, with flowers and organic forms frequently appearing in his work.

This rectangular enamelled plaque features a white parnassus flower on a blue ground. Watt has included text in this piece, which identifies the flower type.