Most of the varieties of colored calla have translucent spots, which are more ornamental than white calla. Let's take a look at the planting notes of colored calla! The colored tubers of the colored calla are large, the leaves are bright green, the spikes are bright yellow, standing upright in the center of the calla lily, the calla lily is like a horseshoe, with white, yellow, pink, red, purple, etc., many varieties. The flowering period is from March to April. The colored calla has a fleshy bulb, roots at the nodes, and the roots are well developed. The leaves are sharp and shiny, and most varieties have translucent spots. The following is a brief introduction to the cultivation method of colored calla. Ecological habits of colored calla 1. Origin Colored calla is native to rivers and marshes in southern Africa. Planting began in Europe hundreds of years ago, and there were interspecific or intergeneric hybrid cultivations of calla lily around a hundred years ago. 2, temperature The colored calla is warm and not cold-resistant. The growth temperature is about 23 °C, the growth temperature is between 18-20 °C, and the night temperature is above 10 °C to bloom normally, but it is better not lower than 16 °C. When the room temperature is low in winter, the flowering time is delayed. Colorful calla can withstand 4 ° C low temperature. Generally, it is easy to cause dormancy when it is higher than 25 ° C or lower than 5 ° C. At 0 ° C, the bulb will die from freezing. Therefore, the area north of the Yangtze River should be potted. 3, lighting Colored calla lilies prefer sunshine, especially in winter. However, if you don't like direct sunlight, it will cause the leaves to wilted and burn out, so it is more important to pay attention in summer. The colored calla is slightly shade-resistant, and 30% of the shade is generally suitable. The overshadow area is too large to affect the coloration of the bracts, resulting in less vivid colors. The length of sunshine has little effect on flowering, and all sunshine or half-day sunshine can grow well. 4, moisture The color calla lily is more critical to the water requirements, generally to avoid the drought, and too much moisture can cause root rot. The supply of water should be based on the principle of “several times,†and the frequency of watering should vary from season to season. In short, it should not be too wet. Color calla lily has little requirement for air humidity, but excessive drying of air humidity will cause physiological diseases such as curling, wilting, dry edges and dysplasia of the leaves. It is worth noting that the air humidity should not be wet and dry, and a relatively balanced humidity environment should be maintained. After the color calla plant is thanked, the amount of watering should be gradually reduced. Move to the outside in late April, place it in a slightly shaded area, water it once a day, and sprinkle water on the ground near the pot to increase the humidity of the air. After June, the colored calla leaves gradually turn to the dormant period. At this time, the dead leaves need to be cut off, the watering should be controlled, the fertilization should be stopped, and the flower pots should be moved to a cool and ventilated place to encourage the colored calla to enter a dormant period. After the autumn weather turns cold, the colored calla tuber is poured out from the flower pot, the large tubers are taken out, and the colored calla is replanted with fresh fertile culture soil. When the tuber sprouts leaves, the watering amount is gradually increased. At the same time, fertilization can be resumed, so that the calla will continue to bloom. Cultivation method of colored calla 1. Selection and treatment of bulbs (1) bulb selection: When selecting a bulb, choose a bulb that is strong, disease-free, bright, and full of buds. The diameter of the bulb is about 3-5 cm. If the bulb is too small, it will cause Calla lily has little or no flowering. (2) Variety selection: Cultivation of colored calla should be strong in disease resistance, bright in color, high in yield, and occupy a large proportion of bulbs in the market. 2, cultivation environment selection Cultivating colored calla should choose a warm, moist and shaded environment, because the temperature required for calla lily during the growing season is 15-24 ° C during the day and 12 ° C above the night temperature. Moreover, the cultivation environment of calla must be well ventilated, moderately shaded, with high topography, good drainage conditions, rich in organic matter, and sandy soil with a pH of about 7. 3, bulb planting (1) Planting time: If the best planting time is spring, the quality and yield of cut flowers of color calla planted in spring are the highest. (2) Planting depth: Generally, the planting depth of the 3-4 cm planting ball is 10 cm, and for the seed ball exceeding 5 cm, the depth is 15 cm. After planting, pour enough water, and then cover the ground with wheat straw, which can increase the humidity and reduce the temperature of the soil. 4, water and fertilizer management The management of color calla lily in the growing season is very important. In the early stage of growth, the soil should be kept moist. After flowering, the water should be properly controlled. After the flowering, the environment should be dry and the seed should be forced to sleep. Usually, 1000 times of calcium nitrate and foliar spray are used twice before flowering, and the interval is 7 days to promote flowering. After the flower, compound fertilizer is needed to promote the fullness and maturity of the bulb.
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