Larcher joined her friend Phyllis BARRON in 1923 in St Ives, and the two became co-designers and life companions thereafter. Dorothy's designs were generally floral and worked into textiles in natural dyes, until about 1930 when they found the synthetic colours more reliable to work with.  They showed their work in St Ives, and in 1924 at the first craft exhibition at NAG, they exhibited their hand printed cloths and scarves.