How to Grow Mustard and Cress
Though these salads are usually referred to as mustard and cress, it is more usual nowadays to grow rape and cress, because rape has more flavour.
To avoid grittiness, grow these salads on damp sacking which can be laid on boxes inor on the outside. Alternatively, sow on damp fine sedge peat. Where soil is used, water the bed with boiling water before sowing to kill the fungus of damping-off disease. This fungus trouble does not occur when sacking is used.
Sow the mustard or rape seeds three days after the cress, so that the two crops will mature at the same time. They will take from 10 to 14 days to mature. For even and speedy germination, keep the freshly sown seed in the dark by covering with further damp sacking or with upturned boxes until the seed has germinated. Make winter sowings in a greenhouse, spring sowings in a frame and summer sowings in the open. To sow 2 square yds. in the open, 1 lb. of mustard or rape seed is needed, or ¾ lb. of cress seed.
Cut the mustard and cress as they are needed, while they are still young and tender. If the salads are grown on soil, cut carefully with a pair of scissors and then wash well.