The genus festuca has some species of perennial herbaceous plants, widespread throughout Europe, generally cultivated mainly for lawns; the festuca glauca is also used as a border plant, or in spots in the flower beds. This small evergreen perennial has long erect or arched leaves, very thin and pointed, of a grayish-blue color; generally they form small very dense, hemispherical, very decorative tufts. In the summer, in the months of June-July, thin stems, similar to panicles, oval and purple in color that bear small spikes rise above the head of leaves. It is a perennial of very easy cultivation, of which there are also numerous hybrids. The most known varieties are the fescue Alpine, originating from Europe and Italy; amethystina from southern eastern Europe and glacialis, native to the Pyrenees.
Now let's see together how to best cultivate the fescue glauca and what are its cultural needs. To obtain an intense coloring of the fescue it is good that the plant receives a few hours of direct sun, although it develops without problems both in the sun and in the partial shade. In areas with very hot summers it is good to shade the plant, or place it in areas sheltered from the sun during the hottest hours of the day. There glauca festuca it does not fear the cold. Nevertheless, during the winter season, the plant loses the aerial part like all perennial species.
The plant does not need special irrigation. Generally the glauca festuca is satisfied with the rains, and can withstand periods of drought that are not too long; if the hot seasons were particularly dry it is good to water the soil around the head of leaves, every week, taking care to wet the substrate in depth, and letting it dry well between one watering and another. In autumn, provide fertilizer for slow-release green plants, or mature organic fertilizer.
The ideal soil for the cultivation of this species must be soft and well drained, it does not tolerate soils that are too rich in organic matter. The fagues, on the other hand, fear damp and very heavy soils. During the spring season it is necessary to supply the plant with a specific fertilizer to ensure optimal plant growth. The fertilizer should be added to the watering water approximately every 15 days. In autumn it is instead advisable to provide a slow-release mature organic fertilizer for green plants.
The multiplication takes place by seed, in spring; every two or three years the tufts tend to turn yellow in the center, so it is advisable to extract the radical bread from the ground and divide it into several portions, which will be immediately put to dwelling individually.
Festuca glauca: Pests and diseases
Typically the fescue species glauca they are not attacked by pests or diseases, even if excessive watering can favor the development of root rot. Pay attention to water stagnation. Before watering the plants, wait until the soil around them is dry.