How to water Osmunda japonica?

Osmanthus fragrans watering note: Ziwei is drought-resistant and afraid of waterlogging. Water can be watered once a year before germination in spring and after defoliation in autumn. If it is not too dry at ordinary times, you don't need to water it. Drainage should be done well in rainy season to prevent water from rotting roots.

Fertilization method: Potted Lagerstroemia indica is easy to excessive fertilization, resulting in excessive growth of branches and leaves. If it lacks fertilizer, it will lead to thin branches and yellow leaves, and the whole plant will grow weakly, with few or no flowers. Therefore, it is necessary to apply fertilizer regularly, apply more fertilizer in spring and summer peak season, and apply less fertilizer after autumn. There is no need to apply fertilizer when winter enters the dormant period. Don't fertilize at noon in rainy days and summer when the temperature is high. Fertilization concentration is applied every 10 day from beginning of spring to beginning of autumn, topdressing every half month after beginning of autumn, and fertilization is stopped after beginning of winter.