Place the seeds in a coffee filter and rinse them with water.
Fill a plastic cup with warm water and place the seeds in the water. Allow them to soak for four hours.
Mix one part of cactus soil with three parts of potting soil in a bucket and mix with water. You know you have enough water in the soil when you squeeze a handful of the potting mixture and only a couple of drops of water fall from your hand.
Fill three-quarters of an 8-ounce plastic cup with the soil mixture you made. Do not compact the soil.
Make a hole in the soil with your finger. The hole should be an inch deep.
Place two seeds in the hole you made in the soil. Use your fingers to top the seeds with soil, taking care to not compact the soil.
Mist the soil in the cup with water placed in a spray bottle so the top is moist.
Place a layer of plastic wrap over the cup and secure it with a rubber band. Keep the soil moist by misting it with water in a spray bottle daily and replacing the plastic wrap.