Siberian iris (wild form)

Siberian iris - Iris sibirica.
Perennial of the Iridaceae family.
Height of flowering plant: 70 cm.
Flower color: blue.
Natural flowering period: June - July.
Winter hardiness zones: Z3 - Z9
Soil requirements: wet, marshy
Use: suitable for cutting.
Award of Garden Merit (A.G.M.) from the Royal Horticultural Society.
1.0 g = 70 seeds.

* Siberian irises are the most practical and reliable crop for cold areas that are not very favourable for floriculture. Elegant Siberian irises are a godsend for landscape designers.
The agricultural technology of Siberian irises is simple. These plants can be called a crop for the lazy. You don’t need to take care of Siberian irises at all, but if you do pay attention to them, they will delight you with abundant flowering and beautiful leaves.
Location: in the southern regions, irises are planted so that they are not exposed to the sun during the daytime, in the northern regions - in open areas. Siberian irises are moisture-loving, but they do not tolerate constant over-watering.
Soil: Siberian irises prefer dense, moisture-retaining soils with a pH of 5.5-6.9.
Planting: if you plan to grow irises in one place for 6-10 years, then the distance when planting should be 60-100 cm.
Care: feed irises with fertilizers that can acidify the soil (for example, potassium and ammonium nitrate), twice a season: the first feeding - in early spring, after the snow melts, the second - at the time of formation of flower stalks or immediately after flowering.
Reproduction: it is desirable to divide Siberian irises one to one and a half months after flowering, starting from mid-August and until the end of October (depending on weather conditions). Before digging, shorten the leaves by 2/3. The division should consist of 3-5, maximum 8 fans. If the planting material is overdried, it must be soaked in water for two to four days. It is almost impossible to save a rotted division. Dividing Siberian irises in the spring is undesirable.
Value for landscape design: the plants are not afraid of severe frosts without sufficient snow, feel good in damp low-lying areas, successfully withstand spring floods and, with all this, can grow magnificently in ordinary mixborders. Landscape architects around the world have long appreciated the plasticity of Siberian irises, as well as the beautiful shape of the bush, magnificent leaves and abundance of flowering. The number of flower stalks in some varieties at the age of seven can approach 200! In addition, these plants do not require frequent transplantation. Over time, they grow into huge clumps with a diameter of 1.8 to 2.5 m and, with proper care, can bloom even at the age of 25.