Moisten the ground in the area where the work will be performed. The moist soil will help to dilute any of the mixture used to remove the mildew that falls to the ground.
Spread plastic over the plants. Use sheets of plastic, like those used by painters. Fasten the plastic down around the edges, using rocks or bricks. The plastic sheets will create a reservoir to collect any falling fluid.
Carefully remove the plastic when you're finished washing away the mildew. Transport the plastic to a location where it can be drained, such as a driveway. Run the hose in the area where the plastic is drained to further dilute the bleach or other compounds used.
Return to the planting area and hose it down to dilute any bleach that may have leaked or seeped behind the plastic.
Things You Will Need
- Plastic sheets
- Overhead cleaning can result in splatter from the bleach mixture. Even though the bleach is diluted in water, it can streak clothes. Wearing old clothes is advisable.
- A mixture of about 4 cups of bleach to 1 gallon of water can be used to kill mildew.