The … Black spot leaf disease shows itself first with black spots appearing on the leaf, then with rings of yellow as the spots grow, until the leaf turns entirely yellow and then falls off. When there are a few spots on a leaf and they begin to grow, they will eventually join together and become a large blotch on the leaf. pingpating Jun 10, 2019 12:26 PM CST. Darken (blacken) The leaves turn black when the plant strong root problems due to constant plant flooding. hide. Overall your Monstera looks pretty healthy, although it appears that it is getting less than optimal light. Once spots develop, the leaves are damaged forever. Cut off the diseased leaves and then wash the scissors in a bleach solution. It looks like your plant has a bacterial plant disease called leaf spot. Leaves turning yellow, brown, or black. As a soil-borne fungus, it's present at all times, even deep winter. Over watering can lead to ugly dark brown spots on your leaves, and underwatering can cause light brown spots and dry, crispy leaves. Put the plant in cool, dry location (no more than 70°) with bright indirect light Very few houseplants should be placed in direct sun. I've had my monstera for a few months and noticed these black spots on one of the leaves, that particular leaf is also not looking as healthy as the others and is a slightly darker green. WA. Hi! If you notice dark brown spots on your monstera leaves, this might indicate that your plant’s roots are rotting due to over-watering. In summer, Monstera should be removed from the southern place, as it is a tropical plant growing in the shade of large trees. My Monstera Deliciosa has developed these black spots over the last 2-3 weeks. Getting rid of black leaf spot must be a two-pronged attack. I’ve also noticed a couple new leaves have a tiny black spot at the point of the leaf. 100% Upvoted. The biggest thing that can wreck your monstera’s leaves is over or underwatering. save. Treating Black Leaf Spot Fungus. It's in a well drained pot, standing on top of a rock bottom wetted to give the plant moisture. The black spots don't wipe off, and they're on the front sides of the leaves, not the backs. Ask a Question forum: Black spots on my monstera. Yellowing leaf monsteras. Leaf spot is a blemish that is found on the leaves of a plant that is normally caused by a fungus. I bottom watered the plant recently and left the planter in water for an hour, which was probably a bit too long since the bottom of the soil was really wet. If left untreated, black spot spreads rapidly and weakens plants severely. Leaf Spot Identification. The pot is pretty large and you need to be careful to allow the top inch or so of soil to get quite dry before watering. The spots don't appear to be extensive. The worst part is, those leaves will not heal from those spots. Mini monstera leaves turning gray with black speckles? As the fungus develops, those black spots on leaves are ringed with yellow. See photos below. Soon the entire leaf turns yellow and falls. If you see yellow or brown leaves on your Monstera, you may be overwatering. Common problems with Monsteras. 0 comments. 1/2. Dark brown spots on monstera leaves is a good indication of the plant getting too much water. The second reason is that this tropical plant is planted in the wrong soil. I need … With big, beautiful split leaves, there’s a reason why our Monstera Deliciosa is a best-seller. I got a mini monstera for my room but I noticed that some of the leaves have been turning gray with black speckles, and some of them getting spots on the leaves. I purchased my monstera plant from a local nursery about a month ago and i’ve Noticed some leaves have black edges or black spots. (For more info, read 4 Signs Your Monstera Is Over-Watered here.) 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