How to Fertilize Rosa 'Comtesse Vandal'?
Half-strength orchid feed every two to three weeks in active growth

Rosa 'Comtesse Vandal' · Rosa 'Comtesse Vandal'
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
Half-strength orchid feed every two to three weeks in active growth