How to Fertilize grapevine 'Blanc Seedless'?
Balanced shrub feed once in spring

grapevine 'Blanc Seedless' · Vitis 'Blanc Seedless'
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. Grow indoors in a greenhouse or conservatory to produce a good crop in cold areas, for detailed advice see indoor grape cultivation
Balanced shrub feed once in spring