Kouroanthus likes acid soil, so the pot soil for planting kouroanthus had better be slightly acid soil, which can be made of peat soil, sand and vermiculite. An appropriate amount of calcium phosphate can be added to the soil. Or choose saprophytic soil and coarse sand to mix according to the proportion of 8:2, and then add a small amount of decomposed animal manure or compound fertilizer for cultivation.
The annual 3~9 month is the growth period of safflower, this period is also higher temperature, and the water demand of plants is larger. It needs frequent watering or spraying to increase air humidity. Open windows and ventilate frequently in summer. After autumn, the amount of water should be reduced gradually to improve the cold resistance of plants.
The growth temperature of safflower is 18-30 ℃, the optimum temperature is about 25 ℃, and its cold resistance is relatively poor. The overwintering temperature is above 12 ℃. In winter, potted plants need to be timely maintained in the room, and direct cold wind should be avoided.
Red Chlorophytum like to grow in half shade environment. In addition to the strong light in midsummer at noon, it should be covered properly, and sufficient light should be given at other times of the year. If it is found that the leaves of saffron turn red during curing, it is mainly caused by low room temperature or too strong light. At this time, you need to improve the room temperature in time. Long term in the environment of low temperature, easy to cause. The phenomenon of leaves falling off and branches drying up.
Saffron needs less fertilizer at ordinary times. It is better to apply some liquid fertilizer which is rotten every two weeks.
When putting into the basin, add proper amount of animal hoof angle pieces and broken bone pieces as base fertilizer to make it grow well. In the vigorous growth period of safflower, the mature organic fertilizer solution should be applied once every 15-20 days, and after summer, more P and K fertilizer should be applied, such as 0.1% solution of potassium dihydrogen phosphate and 20 times solution of dirty water and bone water in the mature fish.
Keep the soil moist after potting, but not too wet. If it causes ponding, the roots are easy to rot or the leaves are often sprayed with water mist to keep the air humidity about 80%.
In the hot summer, it needs to be shaded, and the shading degree is about 50%. Or hang saffron in the balcony under the scaffolding, shade with bamboo curtain, or hang the basin in the south door and window where there is sufficient light scattering.
Avoid the wind blowing branches and vines, so as to avoid the drooping stems being broken along the flowerpot. In autumn, the weather is gradually cool and cold, so the amount of water and fertilizer should be reduced gradually.
