How to Fertilize grape 'Orion'?
Balanced perennial feed every four weeks spring through summer growth

grape 'Orion' · Vitis 'Orion'
Grow outdoors in full sun, in well-drained, humus-rich soil, preferably neutral to slightly alkaline, mulch to keep soil moist, and provide support; for more advice, see outdoor grape cultivation
Balanced perennial feed every four weeks spring through summer growth