The way the calla lily opens is spring flowering, calla lily flowering needs to be fully dormant in the winter, winter temperatures above 10 ℃ is not conducive to flower bud differentiation, before the fall should be in the temperature close to 5 ℃ before going into the room, into the temperature of 5-10 ℃ in the environment of overwintering.

Autumn, winter and spring seasons, if the light is not enough, only draw buds and not flowering, or even buds gradually turn green to wilt, summer sunlight is too strong scorching, to take measures to avoid strong light, otherwise the leaves are easy to turn yellow or wilt.

Maintenance of summer and winter is the key to the perennial flowering of calla lilies. Summer in mid-July, the pot should be moved to a place where there is through the wind, preferably all the shade, midday and afternoon to the ground 2 to 3 times to spray water to prevent the heat to cool down, the daytime maximum temperature such as not more than 30 ℃, you can continue to bloom.

Winter room temperature to 16 ℃ to 18 ℃ is appropriate, the lowest can not be lower than 8 ℃. If the indoor air is dry, water should be sprayed around to increase humidity to prevent the yellow edges of the leaves, and at the same time, light should be increased to make them bloom continuously in winter.

Calla lily is a perennial herbaceous plant, which can bloom many times in a year. To make it bloom more often, it is necessary to make it less leafy, and old leaves should often be cut to promote new buds.