Wheatgrass is a popular, edible herb cultivated for use as a health food supplement. It is sold fresh in blocks with the live roots attached, pressed into concentrated juice shots, snipped into salads and smoothies and even sold as snacking grass for household cats. Wheatgrass carries vitamins A, B, C and E, calcium, magnesium, potassium, iron, natural enzymes and chlorophyll as active ingredients. Wheatgrass seed will germinate and grow into harvest-ready grass quickly in one week to 12 days.
Water the seeds when sown until the surrounding soil becomes drenched. If growing in a 4-inch by 4-inch nursery cube pot, this may translate into roughly 3/4 cup of water. If growing in a 14-inch by 14-inch flat nursery pan this may take 2 qts. of water or more. Use enough water so that the excess water drains out of the bottom of the growing container.
Irrigate your wheatgrass once a day, each morning, for the first three days after planting. Apply a cup to a quart or more of water, depending on the size of the growing container and depth of the planting medium. Add enough water so that the soil and seeds are fully wet and excess water drains out of the holes in the bottom of the pot or pan.
Mist the surface of the seeds, soil and green shoots, each of first three evenings. Continue misting until the water droplets are visible on the seeds, soil surface and shoots and the surface feels wet to the touch of your hand.
Water the grass once per day, on days four through twelve or until the wheatgrass is harvested. Drench the soil until the excess water escapes from every drainage hole and the soil at the base of the green blades is wet to the touch. Again this may equate to cups or quarts of water depending on the size of the growing container, the amount of seed and volume of soil.