Fertilising a Phyllostachys nigra
To ensure the vigorous and healthy growth of Phyllostachys nigra, it is essential to establish a consistent fertilization regimen. Given its rapid growth rate, it is beneficial to apply a balanced, slow-release fertilizer in early spring, just as the growing season commences. This will provide the plant with a steady supply of nutrients, supporting its quick visual density development and maintaining the striking green foliage and characteristic black stems throughout the year.
Due to its evergreen nature and ability to withstand temperatures as low as -15.0°C, corresponding to USDA zone 7a, providing supplementary nutrition can enhance its resilience against cold snaps. An additional application of fertilizer can be considered in mid-summer to sustain its lushness, especially when used as a dense hedge or a solitary statement piece.