Greta Welander was educated at the Technical School (now Konstfack) in Stockholm from 1902 to 1905. In 1908, she married a manufacturer in the textile industry in Norrköping. During the 1910s, she worked as a designer at Reijmyre Glassworks. She likely created her first designs for the glassworks in 1913, as the first correspondence between Welander and Reijmyre regarding designs has been found. Her design world contained motifs almost exclusively from the Swedish flora and fauna, and the designs seem to have been primarily suited for decoration in the overlay technique.