The immature wheat plant (Triticum aestivum) is what we commonly call wheatgrass. Wheat does not grow well in the Hawaiian islands; the humidity causes the already mold-prone grain to mold even more. On the other hand, because it is immature when harvested, wheatgrass can be grown quite well, especially indoors. You can buy wheat berries (the wheat seed) at any natural food store.
Place the wheat berries in a bowl and cover them with tap water. Allow them to soak for eight hours.
Pour equal parts of seed starting mix and sand into the seed starting tray, water it and allow the excess water to drain from the bottom of the tray.
Scatter the seeds on top of the soil until the soil is covered. In other areas of the country, the seeds are covered with peat moss. In Hawaii, the moss will trap too much heat, so cover the seeds with a very thin layer of sand instead.
Pour water into the misting bottle and add 2 tbsp. of kelp extract and one-quarter tsp. of baking soda. Shake the bottle until the baking soda is dissolved. Spray the surface of the sand with the solution until the soil is wet. This will help to avoid mold growing on the soil, which is a common problem in the humidity of Hawaii.
Place the seeding tray in a bright area, either indoors or outdoors, but out of the direct Hawaiian sun. Mist the soil with the kelp solution twice a day to keep it moist. The seeds should germinate within one week.