sprayed with neem oil and soap mixture. these leaves are indicative of a tree that has depleted the soil of a specific nutrient. Once the tree is weakened, it becomes susceptible to mildew if on damp soil, which is the natural preferred habitat of this specific species. So far, fertilizing with npk fertilizer and dilute potassium sulfate hasn’t been ineffective.
echinacea prairie color collection st. henrys