The Common Sage plants. As well as its culinary value, sage is a valuable decorative evergreen shrub, which doesn’t look out of place in ornamental borders. Its handsome foliage is a grey green which give way to spikes of blue/lilac flowers in the summer which are nectar and pollen rich. Sage is easy to grow and look after. Clip plants annually to preserve their shape and encourage growth of fresh leaves, which have the best flavour and colour. Older plants eventually become woody but are easily propagated from cuttings or by layering the naturally arching branches. Light and Water Grow in a light, moist, but well-drained soil in full sun to partial shade It is fairly drought tolerant, but like all other drought-resisting plants needs watering until well established. Plants may also need watering during prolonged dry periods, but always avoid overwatering. Water when the top of the soil feels dry to the touch, ensure the water drains fully. Avoid excessive winter wet as the cold can then damage the roots.