How to Fertilize Rosa 'Martha'?
Rose feed in spring and after each major flush

Rosa 'Martha' · Rosa 'Martha'
Grow in fertile, humus-rich, moist but well-drained soil in full sun or part shade, suited to north-facing locations. Mulch with well-rotted organic matter in late winter or early spring, and for best flowering apply a general rose or shrub fertiliser in early spring and again in early summer. See rose cultivation
Rose feed in spring and after each major flush