1, calla lily is a potted flower for viewing leaves and flowers, and it is also an important cut flower material. When potted, sandy loam with good drainage should be selected and sufficient base fertilizer should be applied. The base fertilizer should be fully decomposed cake fertilizer and pig manure. After the first flowering in early spring (or autumn), the germ sprouting around the root of the mother plant is dug up and planted in a flowerpot alone. After planting, pour enough water and put it in the shade to keep the soil moist. After budding, move to a shade shed with scattered light for maintenance. Be careful not to directly expose to the sun or completely block it. In addition to applying base fertilizer before planting, topdressing liquid fertilizer every 20 days or so during the growth period. The fertilizer can be decomposed cake and water, and the mixed dilute liquid fertilizer of nitrogen, phosphorus and potassium is added every 10 day in peak season. When applying fertilizer, it is forbidden to pour fertilizer water into the leaf sheath to avoid rot.

2. In addition, water regularly during the growing period, and spray water on the ground around the flowerpot in the morning and evening to increase humidity. It is best to wipe the leaves with a sponge dipped in water for 5-7 days to keep them fresh and clean. When the leaves are lush, they should be thinned in time to facilitate the extraction of pedicels. Calla lily begins to blossom in the Spring Festival, and the flowering period is from March to April. After the flowers wither, the residual flowers and buds should be cut off in time to avoid consuming nutrients. Flowers can last until May. Enter the dormant period from May to July, and water less to create a relatively dry environment for it. When the leaves turn Huang Shi, take out the bulbs, store them in a cool and ventilated place, and plant them in pots in autumn.

3. If calla lily is not allowed to sleep, it can be rotated to a completely shaded and well-ventilated place for maintenance in late June. Water should be sprayed on the ground 2-3 times every noon and afternoon to reduce the temperature, and calla lily can continue to bloom when the temperature does not exceed 30℃ during the day. Generally, before the cold dew festival in June, 5438+ 10, move the calla lily indoors, control the watering, and keep the room temperature not lower than 10℃.

4. Wash the leaves with shallow water near room temperature once a week to keep them fresh and green. If the air is dry, spray water around the flowers to humidify them. Pay attention to increasing the light in winter. In order to promote early spring flowering, 1-2 times thin fertilizer water can be poured in February.

5. Matters needing attention in the cultivation of calla lily: disease control. The main disease that harms pedicels and leaves is botrytis cinerea, which can be sprayed with 50% carbendazim 500-800 times or 75% chlorothalonil diluent 600-800 times. These two drugs can be used interchangeably. It is also necessary to prevent taro mosaic virus. The leaves of plants infected with this virus are flower-shaped, and the leaves shrink, deform and curl. It is found that this diseased plant should be pulled out immediately, buried deeply or burned, and this plant tuber should never be used for reproduction. Store valve stem block. After flowering in spring, fertilization and watering should be controlled when the temperature is high in summer. At this time, the leaves turn yellow and enter the dormant period. When the leaves become Huang Shi, the tubers can be taken out and blown for 1~2 days, or stored in a cool and ventilated place in a pot, and then planted in autumn for maintenance and management.