When certain farmers began to secretly sow their fields during the Seventh Year and to harvest what they had planted, and to cover-up their action by saying that such produce was a mere aftergrowth from last year's planting, the Sages of Israel were compelled to enact restrictions on Seventh Year produce and to forbid all aftergrowths () of grain, legumes and those vegetables which are usually planted by mankind, in order to put an end to their deception. Other rabbinic authorities prohibit only the aftergrowths of vegetables, but permit the aftergrowths of legumes and grain. They permitted, however, to pick the fruits of trees that grow of themselves during the Seventh Year, for one's immediate needs, and to gather such vegetables and herbs that are not normally planted by man, such as wild rue ("Ruta chalepensis"), either wild asparagus ("Asparagus aphyllus") or amaranth ("Amaranthus blitum var. silvestre"), purslane ("Portulaca oleracea"), wild coriander ("Coriandrum sativum"), parsley growing alongside rivers ("Apium graveolens"), garden rocket growing in marshlands ("Eruca sativa"), sweet marjoram ("Majorana syriaca"), white-leaved savory ("Micromeria fruticosa"), and the like of such things. Had any of these been kept watch over in the courtyard of a house, their aftergrowths would be forbidden to eat in the Seventh Year. Rabbi Nathan ben Abraham permits the gathering of aftergrowths of mustard greens ("Sinapsis alba") during the Seventh Year.