Nutrient pick-up through leaves is upto 10 times faster compared to roots, hence Foliar (leaf) application gives very fast results. Foliar nutrients are special type & compositions. All nutrients cannot be used for Foliar (leaf) application. This product has special ingredients that make it stick to the surface of leaves. Normal water just runs off or roll off the surface of leaves. This product stays on the surface of leaves for several days and plants continue to pick them up over several days. Thats why, apply just once a week. Very useful for home gardens. Use it round the year. Just mix it in water and spray on leaves of your plants. For maximum effect, spray either early morning or in late evening. Plant leaves absorption capacity is best during low light conditions. Try to spray on underside of leaves also for better effect. This product make the leaves greener. Can be used in in seasons. Use as per directions provided. More is not better for nutrients. Use just once a week or lesser. This product is balanced and works for all kind of plants. Rain provides mostly fixated nitrogen to leaves, making them green. This product provides nitrogen + several micro-nutrients. Thats why it works.