The star herb, also known as Hepatica nobilis, is a rhizomatous perennial plant, native to Asia and Europe; produces small clumps consisting of some leaves with a particular trilobate shape, each lobe is heart-shaped, pointed. The leaves are cuoiose, slightly fleshy, dark green in color, tend to remain on the plant throughout the year, if the weather conditions are favorable, to be replaced by new leaves in spring; the lower page is purple red. Towards the end of winter, or in early spring, they produce thin erect, brown, pubescent stems, which bear small single daisy-shaped flowers, usually blue-purple; there are numerous hybrids with white, pink, purple, and even double-flowered flowers. The flowers develop in small, rather showy bunches. This plant has a fairly short flowering, but is used in gardens for early flowering.
The species of star grass are cultivated in semi-shaded places, or in the complete shade, trying to avoid the direct rays of the sun; these in fact it is better that they reach the plant directly only in the coolest hours of the day. The star grass is a species that does not particularly fear the cold; on the contrary, the summer heat can completely ruin flowers and leaves, until they dry up: in the following spring they generally produce new leaves and new flowers.
It is advisable to keep the soil always slightly damp during the hottest season of the year, preventing it from remaining dry for prolonged periods of time. During the cold months, on the other hand, star grass is generally satisfied with the rains. Only in case of absence of rain or of particularly dry and dry soil it is advisable to irrigate the plant.
However, avoid water stagnation that would cause rot and death of the plant.
The hepatica nobilis should be planted in fresh, light and soft soil, which tends to slightly maintain humidity. The substrate must also be rich in organic and loose matter. It is important to avoid very dry places, with stony soil, and prefer the leaf mold. In nature, these anemones grow in shady woods, with soil rich in humus given by decomposing leaves. To improve the development of the plant and facilitate its growth, it is possible, during the planting phase, to add mature manure to the cultivation soil.
The star grass is multiplied by the division of the rhizomes, which tend to expand naturally over the years. The reproduction of the plant must take place during the spring season or in the vegetative period of the plant.
Grass star - Hepatica nobilis: Pests and diseases
The cultivation of Hepatica nobilis is quite simple and does not require special care to show its natural beauty throughout the year. The main problem for these perennials is not the parasites, but the climate; It is good to constantly monitor ours hepatica nobilis to avoid heatstroke and drought. These are the main attentions to give to the plant in order to grow it at its best.