Potassium Deficiency Symptoms in Plumeria – Identification, Bloom Impact, and Correction Potassium (K) is an essential macronutrient for plumeria, especially during the blooming and high-heat growing phases. While nitrogen drives leafy growth and phosphorus initiates flowering, potassium is the nutrient that sustains flower strength, cell function, and the plant’s ability to handle environmental stress. When […]