Is white palm a negative or positive feng shui?

It's positive feng shui.

Anthurium palmatum is a positive plant, which can be placed in the toilet that hides evil people and practices evil, but not facing the bathroom door.

Anthurium palmatum is a shade-loving plant, which grows well in a humid and cool environment and can receive appropriate scattered light. 60%-70% sunlight should be blocked at noon in summer, and light should be supplemented in the evening or early morning when the weather is cool.