Homemade Organic Fertilizer: Easy and Powerful Recipe 讀 1 Gather the ingredients cup of coffee grounds, cup of crushed egg shells, and cup of banana peel. And dont forget 1 liter of water! If you forget the banana, your plants wont complain… but theyll miss it! 2 Blend it all together No worries! Mix it until it becomes a smooth liquid yes, the smell is odd, but it works!. 3 Dilute before using Use 1 part of the fertilizer to 3 parts of water. Dont apply it pure directly to the pot, or you might overwhelm your plants with too much love! 4 Water with care Once a month is enough. Your plants will thank you with greener and happier leaves Golden tip: Store any leftover mixture in the fridge but dont drink it by mistake!