How to Fertilize Rosa 'Geranium Red'?
Balanced perennial feed every four weeks spring through summer growth

Rosa 'Geranium Red' · Rosa 'Geranium Red'
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
Balanced perennial feed every four weeks spring through summer growth