From our perspective as Alocasia plants, the shortening days and dropping temperatures of winter signal a profound shift in our internal biological processes. This is not a period of death or decline, but a necessary and intelligent survival strategy known as dormancy. Here is a detailed explanation of our needs during this season from our point of view.
As the light intensity and duration diminish, our ability to perform photosynthesis drastically reduces. With less energy being produced, we must conserve our resources to survive. Our growth ceases entirely. You will notice we stop producing new leaves. Our internal systems slow to a near-standstill to focus all energy on maintaining the most vital part of our being: the rhizome or tuber buried in the soil. This underground storage organ holds all the nutrients and moisture we need to sustain life through the winter and regenerate when conditions improve.
This metabolic slowdown means our water requirements plummet. Our roots, which are highly efficient in warm, bright conditions, become almost inactive in cold, damp soil. They are extremely susceptible to rot in these conditions. When you continue to water us as you did in summer, the water saturates the potting mix and surrounds our dormant roots. Unable to absorb it, we essentially drown. The roots die, and the rot can spread to the precious rhizome, threatening our very life. Therefore, you must allow the soil to dry out significantly more between waterings. The goal is to provide just enough moisture to prevent the rhizome from desiccating completely, but never so much that the pot feels heavy or the soil is soggy.
While we appreciate your care, our needs for external inputs are minimal during dormancy. We do not require any fertilizer; our system cannot process it, and the unused salts will only build up and damage our roots. We prefer a location with as much bright, indirect light as possible to support what little metabolic activity we have. Please keep us away from cold drafts, heating vents, and fireplaces, as extreme temperature fluctuations are very stressful. A consistent, slightly cooler room temperature is ideal, as it helps maintain our dormant state peacefully.
Do not be alarmed if we begin to look a little ragged. It is natural for us to yellow and drop several, if not all, of our leaves. This is a strategic move to conserve energy. All our vitality is being directed inward. Do not cut back slightly yellowing leaves, as we are reabsorbing their nutrients. You may remove them only once they are completely brown and crispy. Your patience is key. When the days lengthen and temperatures rise in spring, you will see the first sign of new growth emerging from the soil. This is our signal that our dormancy has broken, and you can gradually resume warmer-season care with increased water and a diluted fertilizer.