Fill the bucket with 6 inches of potting soil. Do not use a bucket or plant pot that has drainage holes. Add water until the water stands 2 inches above the soil level.
Move the bucket to a spot that gets full sun and maintains a temperature of 70 degrees F or higher. Add 1/4 cup of long-grain organic brown rice to the bucket. Sprinkle it over the water evenly. The grains will sink to the soil level.
Maintain the water at 2 inches above the soil level. Once the plants germinate and reach 5 inches tall, increase the water level to 4 inches above the soil.
Stop adding water to the bucket. Let the 4 inches of water evaporate naturally. Once the standing water evaporates, the rice should be a golden brown color and ready for harvest. The process will usually take about four months.
Dump out any remaining standing water. Cut the rice at the soil level to harvest.