Answer: You didn't say whether the plant in question is an indoor or an outdoor plant, annual or perennial, or whether or not it flowers and sets seeds. All of these are important considerations when choosing fertilizer. If your plant is a green indoor plant, it will require more nitrogen than any other element; if it's a flowering plant, you'll want a higher percentage of phosphorus and potassium than nitrogen. A good, all purpose fertilizer is a simple 8-8-8. A veggie garden will get by on a 5-10-10 formulation. When chosing a fertilizer formula, just remember that the first number (nitrogen) promotes lush green growth, the second number (phosphorus) helps with flower and fruit/seed formation, and the last number (potassium) helps the plant develop strong stems and roots. Depending upon what you expect the plant to do, you can custom mix so that you're applying the most important nutrients to that plant. Hope this helps!
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