Giant Peace Lilies prefer consistently moist soil, but never waterlogged. Allow the top 2-3 cm of soil to dry out between waterings. Overwatering can lead to root rot, while underwatering causes leaves to droop dramatically, though they usually recover quickly once hydrated. Reduce watering frequency during cooler, darker winter months.

Pruning for Giant Peace Lilies is generally minimal but important for plant health and appearance. Regularly remove any yellowed, brown, or damaged leaves by cutting them cleanly at the base of the plant. Also, snip off spent flower stalks as close to the soil line as possible once the spathe fades. This encourages new growth and helps the plant conserve energy for future blooms.

Propagating Giant Peace Lilies is most effectively done through division, typically during repotting. Carefully remove the plant from its pot and gently separate the root ball into smaller sections, ensuring each division has a healthy portion of roots and at least a few leaves. Plant these divisions into individual pots with fresh, well-draining potting mix and water thoroughly. This method ensures robust new plants.

Repot your Giant Peace Lily every 1-2 years, or when you notice it becoming root-bound, usually in the spring. Choose a new pot that is only one size larger than the current one to prevent overwatering issues. Gently remove the plant, loosen any circling roots, and place it in the new pot. Fill with fresh, well-draining potting mix, then water thoroughly to settle the soil around the roots.