Sow thethickly; merely sprinkle on the soil, or cover lightly in March or April in a sunny spot. Cover with brown paper till germination begins; about 4 days in warm weather. The cress should be sown 3 days earlier than the mustard which germinates more quickly — of both are then ready to cut simultaneously. Sow for succession at intervals of a fortnight until September in the open, and for winter use from October to March in boxes under glass. Many prefer to grow in boxes in summer also, as being cleaner and handier to crop. Gather by with scissors, thus avoiding clinging earth.