Nutrient deficiency in Plumeria may manifest through various signs. For example, a nitrogen deficiency can lead to pale green or yellowing leaves and stunted growth. A phosphorus deficiency may result in reduced flower production and purplish discoloration on leaves. A potassium deficiency can cause leaf margins to appear scorched or burnt. Additionally, inadequate amounts of micronutrients may lead to various leaf discolorations or deformities. It’s essential to identify the specific deficiency and adjust the fertilizer accordingly to address the plant’s nutrient requirements.