Upper basin
Potted planting time is more appropriate in early September. The upper basin should be a large basin of 23-30cm. Generally, the culture soil can be used by mixing half of the land and green bran ash, which should be loose p>
When planting, you should choose strong tubers with buds. The buds should be placed upright upward, and the soil on the basin surface can be a little thicker. Then pour enough water and put the basin in a semi shady place. In the future, you should often keep the basin moist p>
After sprouting and growing leaves, the pot plants can fully accept the sun. In autumn, there is no need to shade until they move indoors before "frost". Those without greenhouse conditions can be placed on the window sill facing south and facing the sun. In winter, the daytime temperature should be kept above 10 ℃ and the minimum temperature should not be lower than 0 ℃. There are flowers after the Spring Festival, and the flowers are the most prosperous from March to April p>
Watering
Calla likes to be wet. It can be watered more at ordinary times. It can often keep the basin soil moist and can not make the basin soil dry. To keep the air moist, water the surrounding ground while watering. Watering should be controlled in winter, and the leaf surface should be sprayed with wet water every 7-10 days to keep it fresh and fresh p>
Fertilization
During the growth period, apply 20% rotten human manure or cake fertilizer and water every 10 days or so, which can make the leaves green and lush. After February, 20% rotten chicken manure, pigeon manure and other liquid fertilizers with more phosphorus can be replaced to promote flower bud germination and pour them into the petiole during fertilization, so as not to cause yellow leaves or rot p>
Maintenance
When the weather gets warmer after March, the potted plants can be moved outdoors. If the branches and leaves are lush, the yellow and old leaves outside the leaves can be removed, so as to facilitate the extraction of flower stems and promote more flowering p>
After May, the temperature rises, the weather gets warmer, the plants gradually enter dormancy, and the leaves begin to wither and yellow. At this time, the watering should be reduced. Put the basin on the side to dry the basin soil and promote the plants to enter the dormancy period. After all the leaves are withered and yellow, pour out the soil in the basin, take out the tubers, store them in a cool place, and put them in the basin again in the autumn p>