How to Fertilize rose [Papi Delbard]?
Rose feed in spring and after each major flush
rose [Papi Delbard] · Rosa Papi Delbard ('Delaby')
Grow in fertile, humus-rich, moist but well-drained soil in full sun. 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