Sorrel is a slender herbaceous perennial plant about 60 centimetres (24 in) high, with roots that run deep into the ground, as well as juicy stems and edible, arrow-shaped (sagittate) leaves. The leaves, when consumed raw, taste like a sour green apple candy.ommon sorrel or garden sorrel (Rumex acetosa), often simply called sorrel, is a perennial herb in the family Polygonaceae.
Of all the essential nutrients, nitrogen is required by plants in the largest quantity and is most frequently the limiting factor in crop productivity. 1  In plant tissue, the nitrogen content ranges from 1 and 6%.
1 Phosphorus-this nutrient is critical in the germination and growth of seeds, flowers, fruit, and roots. 2  When phosphorus is deficient, growth is reduced and leaves fall off prematurely. 3  Plants lacking phosphorus produce dull, bluish-green leaves that turn a purplish or bronze color with brown edges.ater and air provide plants with three necessary nutrients: carbon, hydrogen and oxygen, however, in the soil there are thirteen more nutrients needed for plants to grow. This is why a soil test can help you grow healthy, verdant plants.