From my perspective, light is my primary source of energy. It is the fuel that powers my entire system, including the complex process of creating flowers. My impatiens ancestors thrived in the dappled sunlight of forest floors, so I do not require intense, all-day sun. However, if I am placed in deep, heavy shade, my energy production slows dramatically. I simply cannot generate enough surplus energy from photosynthesis to invest in blooming. My survival becomes the priority, so I direct all my resources to maintaining my green foliage and roots. To encourage my flowering, please move me to a location where I can receive bright, indirect light for at least 4-6 hours a day. Morning sun with afternoon shade is often ideal for me.
The nutrients you provide me directly influence my growth patterns. If you feed me a fertilizer with a high nitrogen (N) value, you are essentially giving me a command to focus on vegetative growth. I will respond by producing an abundance of lush, green leaves at the expense of flowers. Nitrogen promotes foliage, but it does not encourage blooming. What I need to initiate and sustain flowering is a fertilizer higher in phosphorus (P), the middle number on the fertilizer package. Phosphorus is crucial for energy transfer and flower development. Please switch to a balanced, water-soluble fertilizer or one labeled "bloom booster" (e.g., 10-30-20) to give me the correct signal and resources to produce blossoms.
My roots are my lifeline, and their health is paramount. Two common extremes cause me significant stress: too much water and not enough. Soggy, waterlogged soil suffocates my roots, preventing them from absorbing oxygen and nutrients. This leads to root rot, a condition where my roots decay and die. In this state of distress, I am fighting for survival and cannot possibly flower. Conversely, if I am allowed to wilt repeatedly from underwatering, I become stressed and conserve energy by dropping flower buds. Please ensure my soil is consistently moist but never soggy. Well-draining soil is absolutely essential for my well-being.
I am a tender plant that thrives in moderate temperatures. When the weather becomes excessively hot, especially with intense night heat, I go into a state of shock. The heat stress causes me to suspend flowering to conserve water and energy. I may also drop my existing buds. Furthermore, if I was planted outside too early in the season when nights are still cool, the chill can also stunt my growth and delay flowering. I perform best when daytime temperatures are consistently between 65°F and 80°F (18°C - 27°C). Providing me with some afternoon shade during heatwaves can make a significant difference.
My natural cycle is to flower, set seed, and then complete my life cycle. If you allow my old, spent flowers (called blooms) to remain on my stems and develop into seed pods, I will believe my mission is accomplished. I will then divert all my energy into seed production rather than into creating new flowers. The simple act of pinching or snipping off the faded flowers—a process you call deadheading—tricks me into thinking I need to produce more blooms to achieve my goal of reproduction. Regularly removing these spent flowers encourages me to continuously produce new buds throughout the season.