Pour the wheatgrass seeds into a one-quart glass jar. Add filtered room-temperature water, cover the opening with the lid, and shake to completely rinse the seeds. Carefully drain the water, using a strainer or a lid with tiny holes. If you've removed the seeds, place them back in the jar and cover them again with fresh filtered water. Let the seeds soak in the water for eight to 12 hours at room temperature. Rinse and drain the sprouts. If the seeds aren't showing any signs of small white roots, allow them to sit in the drained but moist jar for another eight to 12 hours, rinsing and draining every eight to 12 hours until the roots grow.
One cup of sprouted wheatgrass seeds covers the soil in a pot 7 inches in diameter or several smaller pots. Wheatgrass soil should be a lightweight potting mix garden soil is too dense. Moisten the potting mix and place it in the pot, leaving about 1 inch of room between the soil and the top of the container. Spread the sprouted wheatgrass seeds across the soil in a dense layer about one or two seeds deep.
Gently water the soil so it is damp but not waterlogged. The general rule for growing wheatgrass is that one cup of seeds is enough to cover a 10x10 inch tray and will yield around 10 ounces of wheatgrass juice. Note that this method applies to potting soil, compost, or other soil-containing planting mixes specifically.
Spread seeds evenly over the surface of the soil in an even, thin layer. You may want to give them one final rinse to make sure they are full of moisture. You can gently press the seeds into the surface of the soil, but it is not necessary. Wheat seeds need darkness to be tricked into believing they are below the surface of the soil.
Use a cover that allows a bit of airflow while providing darkness. Ideally, your container should be set in an area that receives bright, indirect light.
Some people choose to cover their container with a few sheets of moistened newspaper to protect, humidify, and shade their seeds. In the beginning, you should water the seeds twice a day, just misting the top of the soil surface lightly with a spray bottle.
The purpose of this watering is to keep the seeds moist to help them get their roots into the soil and established. Whatever you do, the most important thing is to not overwater. Once your wheatgrass sprouts are about an inch tall in three to five days , you can uncover them and let them experience the glory of growing in the open air.
At this point, direct sunlight will benefit the grass. Most growers find that their wheatgrass is ready to harvest after 10 days of growth. Note that this method applies to coconut coir, vermiculite, or peat moss growing mixes that do not use any soil.
Vermiculite will take one quart of water, but coir should already be moist from the process of crumbling and hydrating it to prepare it and should be moist but not wet. Spread seeds evenly over the surface of the medium in an even, thin layer. You may want to give them one final rinse beforehand to make sure they are nice and moist. You can gently press the seeds into the surface of the medium, but it is not necessary. Ideally, your container should be set in an area that receives bright, indirect light but remains at room temperature.
When growing in a soilless medium, it can be helpful to add a little liquid kelp fertilizer to the water you irrigate with. In the beginning, you should water the seeds twice a day, misting the top of the soil surface lightly with a spray bottle. The purpose of watering is keeping seeds moist to help them get their roots into the soil and established and to provide them with some nutrients.
Whatever you do, the most important thing is not to overwater. Most growers find that their wheatgrass is ready to harvest after ten days of growth. Sprinkle loose soil over seeds. Cover with a plastic lid that has air holes punched in to make a greenhouse effect. Make sure lid is tall enough to allow grass to grow inches. Water daily, avoid overwatering. Using a spray bottle is a good watering method until seeds root and grass begins to grow.
After grass is inches, remove cover, about day 4. Wheatgrass can be grown indoors year-round, so you can begin your project anytime. But it is important to soak the seed in water overnight, the night before you begin. The next day, drain off the water, then rinse the seed off with some fresh water. Fill the nursery tray with potting mix. Spray the potting mix so that it is evenly moist but not soggy from top to bottom.
Sow the seed on top of the potting mix. Cover the seed not with potting mix, but with the white cloth. Mist the cloth to dampen it. Place the tray in a dark spot that stays between 65 and 75 degrees F and has good ventilation. Continue to mist the cloth so that it does not dry out.
The seed should germinate in about 2 days. After germination, remove the cloth and move the tray to a well-ventilated spot with indirect sunlight to get the seedlings accustomed to it. Once the seedlings green up, move them to a location with full sun and good ventilation. Fertilize them every other day or so with liquid kelp fertilizer if you have it. Harvest the grass blades when they are about 7 inches tall. Germination should take place in the dark. Once the seed germinates, grow the seedlings first in indirect sunlight, then in full sun.
Most indoor growers use an organic, sterile potting mix.
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