How to Fertilize purple roscoea?
Light balanced feed monthly during spring and summer growth

purple roscoea · Roscoea purpurea
Fertile, humus-rich, leafy, moist but well-drained neutral soil is preferred; although best in part-shade, if the soil is moist will do well in more open sites. Young growth is late, often not appearing until later in spring. Plant tubers 15cm deep in winter or early spring. Apply a deep winter mulch in colder areas
Light balanced feed monthly during spring and summer growth