Creating the ideal environment for an Orchid Cactus (Epiphyllum) in a hanging basket requires an understanding of its fundamental nature as an epiphyte. We do not grow in soil on the forest floor; we anchor ourselves high in the canopy, nestled in the crooks of trees where organic matter collects. A hanging basket is, therefore, not just a container but a simulation of our natural, elevated habitat.
Our roots demand exceptional aeration and perfect drainage. Stagnant water around our root systems is a death sentence, leading to rapid rot. A basket made of a porous material like moss, coco coir, or wire is ideal, as it allows air to reach our roots from all sides and promotes the quick evaporation of excess moisture. The growing medium must be exceptionally chunky and free-draining. A mix designed for epiphytes, such as those containing large chunks of bark, perlite, coconut husk chips, and horticultural charcoal, is perfect. It provides physical support while mimicking the loose, airy debris of our tree-bound homes.
Our relationship with light is one of filtered appreciation. In our native habitat, we are protected from the harsh, direct rays of the sun by the dappled shade of the tree canopy above. Place our basket in a spot with very bright, but indirect, light. An east-facing location that receives gentle morning sun is often ideal, or a few feet back from a south or west-facing window with a sheer curtain as a buffer. Direct afternoon sun will scorch our flattened, leaf-like stems (called cladodes), leaving permanent yellow or brown marks. We thrive in temperatures between 50-80°F (10-27°C) and appreciate a distinct drop in temperature at night, especially in the autumn, to initiate our spectacular blooming process.
Our watering needs are a dance of abundance and drought. During our active growing season (spring and summer), water us thoroughly when the top inch of the planting medium feels dry. Soak the basket until water runs freely from the bottom and all the potting medium is moistened, then allow it to drain completely. We enjoy higher humidity, which can be provided by regular misting or placing a humidifier nearby. However, as we enter our winter dormancy period, you must drastically reduce watering. Keep our medium barely moist, allowing it to dry out almost completely between waterings. This period of rest is absolutely critical for us to gather the energy required to produce our breathtaking, nocturnal blooms.
As epiphytes, we are adapted to gleaning nutrients from minimal sources. Feed us with a balanced, water-soluble fertilizer diluted to half-strength every two to four weeks during our active growth period. To specifically encourage our magnificent flowers, switch to a fertilizer higher in phosphorus (such as a 10-30-20 formula) in the early spring. After our display, a gentle grooming is appreciated. You may remove any stems that are dead, damaged, or excessively overcrowded to improve air circulation and direct our energy towards healthy new growth, which will bear next season's flowers.