1: Dirt and dust on leaves limit the amount of light the plant receives. The dirt and dust act create a layer reducing the amount of light the plant needs for growth and nutrients.

2. Dirty surfaces on the leaves allow for disease to easily spread throughout the plant. Disease can easily spread through a dirty plant by having a untouched environment to grow in or can be hidden from plain sight due to dirty leaves.

3. Clean surfaces on the foliage to help prevent pests, the most common pest we find with houseplants are Aphids. The best way to control insects and related pests on houseplants is through prevention, as it is almost always easier to prevent a pest infestation than to eliminate one. Having a clean houseplant significantly lowers the risk of pests.

4. Cleaning leaves will reduce stress and lead to healthier larger plants. Just like heavy snow on a tree limb, build up of dirt and dust can cause a lot of stress on the common houseplant, the plant will send more energy to the dirty limbs to compensate for the heavier foliage resulting in less nutrients and overall health of the plant.

5. The most obvious is appearance, a healthy well cared for house plant will have a natural glow if taking care of, no one wants a dirty plant!