Bonide Liquid Orchid Plant Food 9-7-9 8 OZ Sale! from $4.99 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. This 9-7-9 formula designed specifically for orchids provides moisture and nutrients for healthy and robust bulbs and blooms. Approximately 10 drops per quart of water.