Bottom watering involves placing your plant pot in water, so roots absorb moisture from below, while top watering is pouring water directly on the soil surface.
Bottom watering is ideal for plants sensitive to leaf rot or overwatering, and it encourages roots to grow deeper.
Top watering is suitable for most houseplants and helps flush salts from the soil. The best method depends on your plant species, pot type, and soil.
Many collectors use a combination: water from the bottom occasionally and top water regularly. Observing soil moisture helps determine the right approach.