We, Impatiens walleriana, are often called "Busy Lizzies" for our prolific and constant blooming nature. To truly thrive and produce our coveted double blooms, we require very specific conditions. We flourish in locations with bright, indirect light. Direct, harsh afternoon sun will scorch our delicate leaves and cause our vibrant flowers to fade and wilt. However, deep shade will result in leggy growth with few flowers. A spot with morning sun and afternoon dappled shade is perfect. We prefer a consistent, moderate temperature between 65-75°F (18-24°C). We are highly sensitive to frost and cold drafts, which will damage our succulent stems and halt our growth. We also appreciate a humid environment; dry air can stress us and make us more susceptible to spider mites.
Our roots demand a well-draining, aerated, and fertile growing medium to prevent rot and access nutrients. A high-quality commercial potting mix is excellent for containers. For garden beds, amend the native soil with generous amounts of compost or peat moss to improve its structure and moisture retention. When planting us, whether from seed or as young plants, ensure the crown (where the stem meets the roots) is level with the soil surface. Planting too deep can lead to stem rot. Space us approximately 8 to 12 inches apart. This gives our foliage room to bush out and ensures adequate air circulation, which is crucial for preventing fungal diseases like powdery mildew.
Consistent moisture is the single most important factor for our success. Our common name "Impatiens" comes from our impatience with drought; we wilt dramatically to signal our urgent need for water. The goal is to keep our soil consistently moist but never waterlogged. Water us deeply at the base, avoiding wetting the foliage, whenever the top inch of soil feels dry to the touch. In hot weather, this may mean daily watering. To support our energy-intensive process of creating double flowers, we are heavy feeders. Apply a balanced, water-soluble fertilizer every two weeks throughout the growing season. Alternatively, a slow-release fertilizer mixed into the soil at planting time will provide a steady supply of nutrients.
To maintain our compact, mounding form and encourage the maximum number of double blooms, you must engage with us regularly. The practice of deadheading—pinching off spent flowers—is vital. For us double varieties, the faded blooms can sometimes become sticky and cling to the foliage. Removing them not only improves our appearance but also directs our energy into producing new flower buds instead of seed production. If our stems begin to grow long and spindly (a condition called "legginess"), do not hesitate to pinch back the tips. This prompts us to branch out from lower nodes, creating a denser, fuller plant with even more flowering sites.
