Houseplant Diseases: 3 Common Houseplant Diseases

3 Common Houseplant Diseases

If you are reading this blog, then you’re probably a professional plant killer searching for answers on why your plants keep having houseplant diseases and die. Odds are you are Tired of it too. We like to garnish our homes and liven it up with plants. It makes it more alive and fresh. Nevertheless, it’s so frustrating when they keep dying with no reason.

But they don’t Just Die, do they? Plants are extremely sensitive to humidity, light, temperature, and moisture levels. And it’s crucial to grow them in the perfect conditions otherwise houseplant diseases are unavoidable so is death if they weren’t cured in the right time.

It might be too late to save your plants now, but if there’s a slight chance to save them or to prevent any future plant-killing here is 3 most common houseplant diseases and how to treat them to have green and healthy houseplants. We will cover up in this blog stem rot to spotted leaves and powdery mildew.

Basal Stem Rot (Crown, Stem, and Roots Rot)

The first on the list of houseplant diseases are stem root. We try too hard to keep our houseplants alive and healthy, so we overwater them. Overwatering the houseplants cause fungal mycelia to rapidly multiplies and infects the plant.

We can recognize stem rot if the houseplant started to show black, yellow, or brown stem. Moreover, the roots would become mushy and brown or black, but not healthy white. The noticeable rotten smell is as well a very common symptom.

If you started to notice such symptoms then the base is badly affected and there are two solutions here; the first, if you could cut off the unaffected parts of the plant and try to propagate replacements. The second is to through away the diseased plant and have and new houseplant.

Leaf Spots

The second common disease on our houseplant diseases list is leaf spots. Have you noticed brown, black, reddish, yellow or tan spots on your houseplant leaves? The spots are more likely to appear when the conditions are wet and cool.

This fungus houseplant disease causes leaves to fall and it could spread through the entire plant. And it distorts the levels and causes them to fall out. In order to stop the spreading of the spots, we should pluck up the spotted leaves.

Since it’s caused because of high humidity and wet leaves, you should start to water your plant in the early morning so it could have time to dry before nightfall. Plus, water the soil rather than the leaves, and stop misting the plant and spraying its leaves to create less moisture.

Increase air circulation by spacing out between your houseplants, to better combat high temperatures and humidity levels. More importantly, clean the top of the potting mix from the fallen plant residues as this fungus thrives on them, and never use infected potting mix.

Powdery Mildew

Our third common disease is not fatal like the others, but it certainly takes a lot away from the plants’ beauty. This houseplant disease is most common in winter due to high humidity and cooler weather conditions. It shows on the leaves as white-powder or film, and if left untreated it could cover the whole plant.

Oidium is the fungus species that is responsible for such a disease. It thrives in cooler conditions, wet leaves and soil, fallen leaves, and overcrowding.

Mildew, fortunately, is less serious houseplant disease than other houseplant diseases and is quite easy to treat. To stop spreading the disease in the plant and other nearby plants, pluck up the mildewed leaves carefully, clean the top of the pot of any fallen leaves, control humidity, water the houseplant early in the morning to avoid accumulating mist on the leaves and soil, and spread between the plants (don’t overcrowd).


You can’t keep houseplant diseases away, but good houseplant caring practices surely will help to keep your plants feeling green. Water them properly without overwatering them, cleaning the pot, refreshing the soil, giving the required amount of light, and providing for each plant the favourable environment to grow and flourish will definitely keep your plant fresh and healthy.

club sandwich recipe

Club Sandwich Recipes

How to Keep Your Writing Far from Being Chaotic