Spray-N-Grow is a safe, economical easy to use spray that will facilitate earlier, larger, more plentiful blooms. You will notice more vibrant colors, greener plants and tastier harvests in your grow area. Spray-N-Grow is an all natural organic based micronutrient complex that can be used on vegetables, fruits, flowers, herbs, as well as shrubs, trees, houseplants, even orchids. Just spray the leaves of plants and let dry. Quantity: 8 oz.