Aponogeton bernierianus requires consistently moist to submerged conditions. In aquariums, maintain a water level that fully covers the plant.

For pond settings, ensure the substrate remains saturated, ideally with shallow standing water, and avoid letting it dry out completely, especially during active growth periods.

Pruning primarily involves removing decaying or yellowing leaves to maintain plant health and aesthetics. Trim these leaves at the base of the plant with sharp scissors or a knife.

Dead flower stalks can also be removed to encourage further blooming or conserve energy for tuber development.

Aponogeton bernierianus primarily propagates through its tuber. Over time, the tuber may divide naturally, or it can be carefully separated during repotting.

Seeds can also be produced after flowering, but germination and establishment from seed can be more challenging.

Repotting is typically done when the tuber has outgrown its container or the substrate has become depleted. This is best performed after the plant's dormant period.

Gently remove the plant, clean the tuber, trim any rotten roots, and replant in fresh, nutrient-rich aquatic substrate.