For planting xiphidium, ensure rich, well-draining soil with moderate to high humidity levels. They prefer dappled light, mimicking their native understory habitat. Start by digging a hole twice as wide as the root ball. Gently place the xiphidium plant, ensuring the top of the root ball is level with the soil surface. Water thoroughly after planting, and maintain consistent moisture without waterlogging. Mulch can help retain soil moisture. It's key to know that different xiphidium species may have varying specific requirements.