I currently grow an evergreen plant commonly known as the money plant. Its a nonflowering plant that grows like a vine and have oval shaped leaves. It can be grown either in soil or submerged in water. Mine is grown in a glass container of water.

recently, i realised that the leaves are starting to brown at the edges and occasionally there are holes on the leaves where the edges of the holes are browning too. I thought it was bugs at first but could not find any traces or tell tale signs of pest problems. the container is placed near the window with ample but not direct sunlight. the climate here is summer and high humidity throughout the year. Could anyone please kindly enlighten me on the possible causes of this?

could be over fertilised...and over watering.

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Stupe

holes2 pic looks like the leaf was crushed and broken. the other hole pic looks like a burn and so does the browning at the tips.

allowing water droplets to stay on the leaves when it's in a window where it gets direct sunlight will cause burns.

pothos doesn't need direct sun...might want to move it away from the window so that it is not sitting directly in the sunlight.