Clivia Cultivation Methods and Fertilizer and Water Management Techniques
Clivia prefers neutral water. Clean, unpolluted tap water, well water, river water and so on can all be used for watering, but since fresh tap water and well water have a lower temperature than the soil and contain some impurities, they should be left to stand for 1-2 days before use. As for watering, there is quite a bit of know-how here as well. For small Clivia seedlings, the best method is to use a spray bottle for spray irrigation. Spray the nozzle upward onto the leaves. The advantage of doing this is that besides achieving the purpose of watering, it can also wash off dust, and at the same time leave mist droplets on the leaf surface, ensuring a certain degree of humidity on the leaf surface. In sunlight, the evaporation of water can lower the leaf surface temperature and prevent sunscald. However, for Clivia that is currently blooming, spray irrigation must not be used for watering, to prevent water from entering the leaf sheaths and causing heart rot. For Clivia in the flowering period, water can only be poured into the pot. So when should you water, and how much water is appropriate? This mainly depends on the ambient temperature where the Clivia is located.
The general watering principle is "watch for wet and dry, do not water if not dry, water thoroughly when completely dry." Watering thoroughly means making all of the Clivia's roots be in the same degree of moisture. To judge whether the water has been watered thoroughly, you cannot decide only based on whether water flows out from the bottom of the pot. This is because sometimes after the potting soil dries it becomes compacted and shrinks into a ball. After watering, the water quickly flows from the pot wall to the bottom of the pot and runs out through the bottom hole. But the central part of the potting soil has not been touched by even a little bit of water. If watering is stopped at this time, the Clivia leaves will wilt, and when the flower stalk is emerging, it will cause "stalk clamping."
A simple and effective watering method is to immerse the entire flower pot in a basin or bucket filled with water, soak for half a minute, and then take it out. However, the disadvantage of doing this is that nutrients in the soil are relatively easy to lose, so if you want the Clivia to have deep roots and large leaves, you also need to pay attention to replenishing nutrients in a timely manner. The nutrient elements needed by Clivia mainly come from organic fertilizers, such as soybean cake, peanut oil cake, animal offal, and so on. Under normal circumstances, applying them once in spring and once in autumn within a year is sufficient. In spring, apply once after flowering, around late April to early May; in autumn, after the fruit is harvested, apply once more around mid-September to late October.
Clivia is a moisture-loving plant and has relatively high requirements for the humidity of its growing environment. Its most suitable humidity range is 70%-80%. Clivia grown in such an environment has tender green leaves, clear leaf veins, and short, wide, neat leaves, with high ornamental value. However, limited by home environmental conditions, ordinary households find it very difficult to reach this standard. This is also the main reason why many people cannot grow Clivia well. Clivia is a intermediate-day plant and does not have strict light requirements. As long as the temperature is suitable, it can bloom normally whether the light duration is a little longer or a little shorter. Short-day conditions in winter and spring are more conducive to flowering. Good light is an important condition for ensuring large, brightly colored Clivia flowers. But it still prefers relatively weak light, and especially dislikes strong light.
The leaves of Clivia are phototropic. If it is placed in one spot indoors for a long time, the leaves will inevitably turn toward the direction of the sun. As far as its plant shape is concerned, it will then be very difficult to achieve the ornamental effect of forming a line when viewed from the side and looking like a fan when viewed from the front.
Clivia must be placed in a north-south direction. If it is not in a north-south direction, the leaves will grow crooked. So what should you do if the leaves have grown crooked? You can align two leaves and clip them together. You can use a playing card to wrap around them so that the leaves are not damaged. Under normal circumstances, the leaves will be corrected in 15-20 days.
While the thick, fleshy roots of Clivia store sufficient water, they also place higher demands on the soil on which they depend for survival. Only nutrient soil with good air permeability, loose texture, and rich humus content is suitable for the growth of Clivia's fleshy roots.
The rot-resistant tree leaves or pine needles used for Clivia must be fermented before use. They cannot be used without fermentation. If not fermented, they can easily burn and rot the roots. Clivia must have its soil changed once a year.
The timing and frequency of repotting and soil changing for Clivia depend on the size of the seedling and the season. Mature Clivia like these need to have their soil changed once a year. The best time to change the soil is in spring and autumn, because Clivia grows vigorously at this time and the plant's growth will not be affected by the soil change. Take the Clivia out of the pot, cut off rotten roots and old roots with no absorption capacity, and remove the spent soil. Cover the drainage hole of the flower pot with a piece of broken pot, fill in 2-5 cm of nutrient soil, grab a handful of soil and pack it firmly inside the roots, then place the plant in the pot. When the nutrient soil filled into the pot reaches half the height of the pot, gently press downward along the edge of the pot with your hand, so that the roots all stand upright in the pot and are not easily bent. The key point of changing the soil is to pack the root area firmly with soil. Otherwise, if there is no soil around the roots, water and nutrients cannot reach the roots, which can easily cause root rot and stalk clamping. After changing to nutrient soil, just water thoroughly. The timing and frequency of repotting and soil changing for Clivia depend on the size of the seedling and the season. Mature Clivia like these need to have their soil changed once a year. The best time to change the soil is in spring and autumn, because Clivia grows vigorously at this time and the plant's growth will not be affected by the soil change. Take the Clivia out of the pot, cut off rotten roots and old roots with no absorption capacity, and remove the spent soil. Cover the drainage hole of the flower pot with a piece of broken pot, fill in 2-5 cm of nutrient soil, grab a handful of soil and pack it firmly inside the roots, then place the plant in the pot. When the nutrient soil filled into the pot reaches half the height of the pot, gently press downward along the edge of the pot with your hand, so that the roots all stand upright in the pot and are not easily bent. The key point of changing the soil is to pack the root area firmly with soil. Otherwise, if there is no soil around the roots, water and nutrients cannot reach the roots, which can easily cause root rot and stalk clamping. After changing to nutrient soil, just water thoroughly.