Cultivation method of random grass
Among many ornamental plants, random grass has become a new favorite in gardening due to its unique shape and easy-to-maintain characteristics. This perennial herb native to North America not only has a flowering period of half a year, but also interprets the beauty of nature with its three-color gradient inflorescences of purple, pink and white. This article will systematically explain all cultivation methods from basic maintenance to advanced skills to help you create a flexible flower landscape in your courtyard. 1. Temperature and light management, core elements of environmental regulation, the ideal growth temperature should be controlled within the range of 18-28℃, and it should be maintained above 5℃ for winter. In northern regions, it is recommended to move indoors in late October, and paired with double insulation film can improve cold resistance. The light demand follows the principle of "full sunshine in spring and autumn and half shade in summer." Ensuring 4 hours of direct light every day can effectively prevent excessive growth. The water supply strategy adopts the "see dry, see wet" watering method, and water is poured thoroughly when the topsoil is 2cm dry. Pay attention to drainage during the rainy season. If water accumulates for more than 24 hours, the roots will rot. When the air is dry, a sprayer can be used to replenish water on the leaves, and it is best to maintain 60% environmental humidity. 2. Collaborative management plan of water and fertilizer science fertilization system During the growing period (March to September), nitrogen, phosphorus and potassium compound fertilizers (ratio 1:2:3) are applied every month, and potassium dihydrogen phosphate solution (diluted 800 times) is added during the bud appearing period. It is recommended to use decomposed sheep manure for organic fertilizers and bury 50g/plant shallowly every quarter. The effect is better when used with microbial inoculants. Substrate optimization skills Random grass breeding methods
The ratio of peat soil: perlite: humus soil =5:3:2 is used, and the soil is changed every two years. When planting, it is necessary to deeply dig a 40-cm soil layer, mix 10% vermiculite to improve air permeability, and control the pH value in a slightly acidic environment of 6.0-6.5. 3. Reproduction and plant type control rationing cuttage practical operation in spring rationing Select a 3-year-old mother plant and retain 3-5 bud points for segmentation. Semi-lignified twigs are used for cuttage, soaked in rooting powder, inserted into perlite matrix, maintained at a constant temperature of 25℃, and rooting can be taken in 15 days. The intelligent pruning system cuts off the remaining branches in time after flowering, and retains the base 15cm to promote secondary flowering. Maintain a plant spacing of 30cm during group planting, and regularly remove the lower yellow leaves to enhance ventilation. 4. Integrated pest control