How to Fertilize grape 'Chardonnay'?
Diluted vine fruit feed every month spring until fruit harvest time

grape 'Chardonnay' · Vitis vinifera 'Chardonnay'
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
Diluted vine fruit feed every month spring until fruit harvest time