Humid. In summer, water more, but avoid standing water, because Rohdea japonica is the root of meat, most afraid of standing water, if too much water, easy to rot root. You can often spray water on the leaves. Reduce watering in winter. Be sure not to get wet in the flowering period. In spring and autumn, watering should not be too frequent, just keep the basin soil moist.
The requirement for fertilizer is not high. Base fertilizer can be applied in spring and autumn when the basin is changed, or fertilizer and water can be applied every 3 to 4 weeks to make the plant grow strong and the leaves green. In addition, the old leaves around the adult plants should be cut off before and after summer to facilitate the germination of new buds, leaves and flowers.
It has strong adaptability, but the most suitable is loose, good permeability and slightly acid loam.
Winter in North China needs indoor wintering, while in South China it can live in the open without freezing above 5 ℃.
The key to keeping Rohdea japonica well is to avoid direct sunlight when it is hot and sunny in summer. Evergreen likes half shade, avoid exposure to the sun. Otherwise, it is easy to cause scorched edge or even withered yellow of leaf stem, which will affect the ornamental effect. Therefore, it should be placed in the ventilation place and given indirect light.
Propagation in ramets. In early spring, sprouting seedlings are divided and planted together with roots, which is easy to survive. Sowing is OK, but not used generally.
The ramets can be combined with basin change, generally once a year. The clustered plants are divided into several clusters and cultivated separately, once every three years.