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Soil and Fertilizer
What is an NPK Ratio?
NPK is an acronym where N = nitrogen, P = phosphorus and K = potassium. These three elements are vital to the growth of plants and, therefore, a staple of many fertilizers. An NPK ratio will tell you about the percent by weight of those three element
Should I put rocks at the bottom of the pot for drainage?
It's a widespread myth that gravel at the bottom of a pot adds drainage. In fact, it increases the chance of rot. Here's how to actually improve drainage.