How to stop mold from growing on plants?

Author: Cole Gutmann  |  Last update: Wednesday, July 8, 2026

Keep your plants somewhere light and airy. Mould finds it harder to grow in well lit spots with good air circulation.

How do you get rid of mold on plants?

Baking soda solution: Mix 1 tablespoon of baking soda in a quart of water and spray it on the affected areas to combat powdery mildew. Vinegar: A diluted solution (1 part vinegar to 3 parts water) can be sprayed on leaves to help with mold but may affect some plants, so test on a small area first.

How do I prevent mould on my plants?

Keep your plants somewhere light and airy.

Anywhere dark and stuffy will encourage mould. Mould finds it harder to grow in well lit spots with good air circulation.

Why is my plant growing mold?

  • Excess Moisture: Overwatering or high humidity creates a damp environment conducive to mold growth.
  • Poor Air Circulation: Stagnant air around plants can trap moisture, promoting mold development.
  • Organic Material: Mold feeds on organic matter, such as decomposing plant material or soil.

How do you keep mold off top of plant soil?

How to get rid of mold in houseplant soil: Repot the plant in sterile potting soil. Dry out your potting soil in direct sunlight. Remove mold from the plant and spray with a fungicide. Add a natural anti-fungal to your houseplant soil. Repot new plants immediately into sterile soil.

Mold Isn't Killing Your Plants - THIS IS! Grow Successfully Indoors Without Crazy Chemicals

Does vinegar stop mold on plants?

If you are using vinegar to try to get rid of mold on plant soil, it is important to dilute the vinegar with water to a concentration of around 50% vinegar and 50% water. You can then use a spray bottle to apply the mixture to the affected area, making sure to coat the mold thoroughly.

How to stop mold from growing?

The best way to prevent mold is to control moisture.
  1. Keep the indoor humidity below 60% relative humidity, ideally between 30% and 50%.
  2. Repair leaky pipes and faucets.
  3. Turn on the exhaust fans when bathing and cooking.
  4. Clean out the gutters.
  5. Make sure water drains away from your home.

How do you treat mould on plants?

Apply a Fungicide
  • Vinegar: Vinegar can work as a fungicide because the acetic acid in the vinegar changes the fungus's pH, which will kill the disease. ...
  • Milk: Milk can both treat and prevent powdery mildew. ...
  • Potassium bicarbonate: You can use potassium bicarbonate as an effective fungicide by creating a solution.

Does cinnamon get rid of mold on plants?

Cinnamon for mould on plants

Scientific studies indicate that cinnamon works against fungal pathogens. Under laboratory conditions, scientists have shown that the elements in cinnamon powder inhibit the development of grey mould (Botrytis cinerea) and various species of Phytophthora.

Can you water plants with apple cider vinegar?

Use ACV for fertilising your plants

Simply mix water with your apple cider vinegar and pour it into a sprayer or watering can. Spray this solution at the base of the plant, avoiding watering the leaves as this can often lead to wilting.

Why put cinnamon on plants?

Damping off disease is a fungus-based problem that hits small seedlings just as they begin to grow. Cinnamon will help prevent this problem by killing the fungus. It also works with other fungal problems exhibited on older plants, such as slime mold and with deterring mushrooms in planters.

How to get rid of black mold on plants naturally?

The best method to remove the mold is to soak affected plants in a water and detergent mixture. Use 1 tablespoon of household liquid detergent per gallon of water and spray it on the plants. Wait 15 minutes, then wash the detergent solution off with a strong stream of water.

Is baking soda good for plants?

Because baking soda increases soil pH, many of the important macro and micro nutrients plants need may become unavailable to them. Baking soda in the garden can also contribute to soil compaction and crust build-up. This leaves the soil less porous causing nutrients and water to move poorly through it.

What is the best natural antifungal for plants?

A good place to start is a mix of mild liquid soap and water, sprayed onto houseplants. One teaspoon of soap per litre of water will do the job. It sounds simple, but this formula will treat a lot of common houseplant pests. Add just a teaspoon of bicarbonate of soda and it becomes a great fungicide as well.

Can indoor plants reduce mold?

Spider plants, orchids and leafy palms can all help to remove mould spores in the home. From the bathroom to the kitchen, any room that suffers from humidity, dampness, mildew or mould could benefit from one of these clever houseplants.

Can plants recover from powdery mildew?

Powdery mildew fungicide: Use sulfur-containing organic fungicides as both preventive and treatment for existing infections. Trim or prune: Remove the affected leaves, stems, buds, fruit or vegetables from the plant and discard. Some perennials can be cut down to the ground and new growth will emerge.

How do I get rid of mold on my plants without killing the plants?

Vinegar is a proven method for destroying mold and eliminating pesky white spots from your plants. Mix two tablespoons of apple cider vinegar with a quart of water, and spray onto your infected leaves and stems. Repeat every few days until all traces of mold are gone.

Can I spray cinnamon water on plants?

Recipe for Cinnamon Foliar Spray

Let cinnamon sits in water overnight. The next day, strain the powdered cinnamon using a sieve or coffee filter and use the water as an anti-fungal spray. Spray the water on affected areas of plants twice a week.

Is vinegar good for mold on plants?

Similar to mouthwash, the acetic acid of vinegar can control powdery mildew. A mixture of 2-3 tablespoons of common apple cider vinegar, containing 5% acetic acid mixed with a gallon of water does job. However, too much vinegar can burn plants but at the same time, higher concentrations (above 5%) are more effective.

Can a plant be saved if it has mold?

You can eliminate white mold by removing all parts of the affected plant, such as leaves, stems, and flowers. Use a gardening tool to remove the mold manually. If there is a substantial amount of mold, you may want to use fresh potting soil. Wash the plant with a fungicide solution to avoid reinfection.

How to stop mold from growing on plant soil?

The first and most important way to prevent mold in houseplants is to fix the soil drainage. "Empty saucers, choose containers that have drainage holes, and let plants dry in between waterings," says Brown.

How do you treat mould on leaves?

A 10% milk solution – simply mix milk and water and give your plants a thorough spray. Baking soda fungicide solution – to 500ml water, add one to three teaspoons of bicarbonate of soda, one teaspoon of vegetable oil, a little squirt of eco-detergent to act as an emulsifier. Mix and pour into a spray bottle.

What kills 100% of mold?

Hydrogen peroxide, commonly used to disinfect wounds, is active against a wide variety of micro-organisms including mold. It acts by releasing oxygen at a rapid rate, which kills mold by oxidizing the surface and breaking down proteins and DNA.

Can plant mold make you sick?

Can mold make my family sick? Exposure to mold can cause health effects in some people. Mold spores are always found in the air we breathe, but extensive mold contamination may cause health problems. Breathing mold can cause allergic and respiratory symptoms.

How do you permanently get rid of mold?

How to get rid of mould
  1. Fill a bucket with water and a mild detergent like washing up liquid. ...
  2. Dip a cloth in water and wipe the mould off the wall. ...
  3. Once you've removed the mould, use a dry rag to remove the rest of the moisture.
  4. Throw away the cloth and vacuum the room to make sure you've removed all of the spores.

Previous article
What does Merry Maids pay?
Next article
Can you remodel a kitchen for $5000?