Watering bonsai trees requires a nuanced approach rather than adherence to a strict schedule. The appropriate amount of water depends on several factors, including the species of tree, pot size and material, soil composition, climate, and season. For example, a deciduous bonsai in a small terracotta pot during a hot summer might require watering daily, while a conifer in a larger ceramic pot during winter might only need watering every few weeks. Observation is key: the soil should be allowed to dry slightly between waterings, but never completely dry out.
Proper hydration is essential for bonsai health and longevity. Overwatering can lead to root rot, fungal diseases, and ultimately, the death of the tree. Underwatering, conversely, causes dehydration, leaf drop, and also eventual demise. Historically, bonsai cultivation evolved alongside an intimate understanding of plant physiology and environmental response, with watering practices refined through generations of careful observation and practice. This tradition emphasizes a balanced approach to watering, mirroring the natural cycles of rainfall and drought that trees experience in their native environments.