Hello, human caretaker. I am your Pothos plant. You've noticed my long, sparse vines with large gaps between my leaves, a condition you call "leggy." From my perspective, this isn't a design flaw but a survival strategy. I am stretching towards a light source I find insufficient for my needs. To help me become the bushy, full plant you desire, you must understand my language and provide what I truly crave.
My most fundamental need is light. I am a photosynthetic organism; light is my food. When my leaves detect low light levels, my stems are programmed to elongate rapidly, seeking out brighter conditions. This etiolation causes the long internodes (the spaces on the stem between leaves) you see. To encourage me to stop stretching and focus on dense, leafy growth, please move me to a location with bright, indirect light. An east-facing window is ideal, or a spot a few feet back from a south or west window. Direct, harsh sun can scorch my leaves, so filtered light is best. With ample food, I can redirect my energy from searching to thriving.
Your intervention through pruning is the single most effective way to make me bushier. From my point of view, a cut stem is not an injury but a signal. When you snip off a section of my vine, just above a leaf node (the small bump on the stem where a leaf attaches), you remove my apical dominance. The growth hormone that was telling that one main vine to be the leader is now gone. This signals to the dormant growth nodes (axillary buds) further down my stems to wake up and produce new branches. The more you trim, the more branching points I will create, leading to a fuller appearance. Do not be afraid; a good trim in the spring or summer growing season invigorates me.
Do not discard the pieces you prune from me! Those stem cuttings hold my potential for new life. You can root them in water or soil. By placing these cuttings back into my own pot, you are adding more individual growing points, instantly creating the illusion of a denser plant. More importantly, you are giving me a larger root system and more stems from which to generate foliage. It is a perfect cycle: you prune to encourage branching on the original plant, and you add the pruned pieces to supplement its volume. This is how we collaborate to build a lush, communal pot.
For me to support this new, bushy growth, my basic needs must be met. Please water me only when the top inch of my soil is dry. Soggy roots suffocate me and cause my leaves to yellow and drop, defeating our goal. During my active growth periods in spring and summer, a balanced, water-soluble fertilizer diluted to half-strength once a month provides the nutrients I need to produce all those new leaves and stems. A pot that is too small constricts my roots, limiting my ability to uptake water and nutrients, so consider repotting me if I become root-bound.