You can apply Osmocote to your potted houseplants in the same way you would if you used the product on outdoor container gardens. Measure out the granules using the scoop provided and by checking the chart for the amount which is determined by the size of the pot. For an average 6 inch wide indoor container measure out one half of a teaspoon of Osmocote. Then sprinkle this on top of the soil around the roots of the plant. Next use a plastic fork to gently mix the granules into the top inch of soil. Water well and you are done feeding your plants for the next six months. Keep in mind that the slow release granules are very forgiving so there is no worry if you use a bit too much or too little or even if you forget to mix it into the soil. The product will be released slowly as the plant needs it. Keep growing, Marianne Binetti