In most places where grasses are used in landscaping, there will be sufficient rainfall to keep it looking good without supplemental irrigation or watering. However, if it is planted in a very dry climate or there is a lengthy drought, Annual bluegrass may die out if it isn’t watered. During the winter months, this grass goes dormant and may appear to be dead, but it still needs moisture to keep from becoming fully dehydrated. It regrows as weather warms up in the spring.

A good rule of thumb for watering Annual bluegrass is that it does best with about an inch of water every 1 week. A thorough drenching in a short period of time is better than a slow and steady drip, as it leads to a stronger, deeper root system.

Freshly planted grass has more specific requirements for watering. After planting, the young grass needs to be kept moist for the first 3 to 4 weeks until it has a chance to establish itself. The best time of year to plant Annual bluegrass is in the late spring to early summer, when there tends to be plenty of rainfall anyway. However, if your area experiences a dry spell after you’ve recently planted grass in your lawn, it is a good idea to cover the grass to prevent water evaporating or to water the lawn to keep soil moist.

Considerations for Watering Annual bluegrass
The environmental conditions, soil type, and amount of drainage will affect how often Annual bluegrass needs to be watered. If your lawn has sandy soil that doesn’t retain much moisture, you may need to irrigate to keep this grass looking its best. Clay soils that drain slowly and hold a lot of water are less likely to need additional water, but can be bad for Annual bluegrass as this grass is sensitive to too much water around its roots.

Overwatered Annual bluegrass
If your grass is turning yellow or pale green, it may be getting too much water. Although Annual bluegrass is tolerant of almost any soil type (it is not sensitive to pH, and can be in sandy, loamy, or clay soil types), it doesn’t do well in soil that doesn’t drain well. Avoid planting this grass in marshy areas or where the ground feels spongy. If you irrigate your lawn, err on the side of too little water vs too much, since Annual bluegrass does best if it’s allowed to dry out before being watered again.

Wet soil can allow fungus to grow, or create a favorable habitat for insect pests and weeds. Of course you can’t control how much rain falls on your Zoysia grass, and the occasional heavy rainfall is unlikely to cause problems for this resilient plant. However, long-term overwatering can cause the plant to suffer and even die off.

Underwatered Annual bluegrass
One of the advantages of growing Annual bluegrass is that it can survive without much water since it has adaptations that help it to conserve water. This grass has a deep root system, meaning it can use groundwater if it hasn’t been watered in a while. In drought conditions, this grass will turn yellow and get crispy, but it can recover once the dry spell is over. The ability to recover from a variety of conditions is one of the many reasons that Annual bluegrass is such a popular grass.

Annual bluegrass is a kind of annual plant so it doesn't need much pruning. You only need to cut off and clean the diseased, yellow or dropped leaves and stems during its growing period. This will help your Annual bluegrass to stay away from pathogens infection.

Expect to prune your Annual bluegrass every week if it’s growing well or every two weeks if it grows slowly.
It is always good to prune it on sunny days because if you prune it on rainy days, the rainwater will distain the cuts and cause the whole plant to be infected.

During the growth of the plant, yellowing, drying and spotted leaves are produced, and these spotted and discolored leaves need to be trimmed off. If the whole piece of leave is discolored or infected, you will need to cut it off completely. In other situations, you will only need to cut off the discolored or infected part on certain leaves.
Annual bluegrass above the ground will die and dry up in the winter, and the dead plants need to be cleaned up.

Because Annual bluegrass is an annual plant, the pruning should take place basically during the seasons that the plant grows rapidly. During the growth of the plant, yellowing, drying and spotted leaves are produced, and these spotted and discolored leaves need to be trimmed off.

1. Sterilize all the tools before pruning; unclean tools will pass pathogens to the plant through wounds;
2. Prune on sunny days because the new cuts will be infected by pathogens if they're distained by rain or water.
3. Throw all the waste leaves and stems into trashbins, they will easily rot and attract diseases and bugs

Annual bluegrass leaves are delicate, so take care not to score or bruise them. Unless the leaves are withered or heavily discolored, do not prune the leaves from the lowermost branches unless they’re damaged. They typically grow the largest, so they supply the plant with critical energy to keep it growing right. Please prevent the wounds from water after pruning until they are fully recovered. Remember always sterilize the tools before pruning. When the pruning is finished, please throw all the waste leaves and stems into the trashbins to avoid diseases and bugs.

Annual bluegrass is easy to care for in the spring. Since the plants do not grow in soil, repotting isn’t necessary.

Tip 1: The plants do require indirect sunlight and misting two times a week, but do not allow water to stay on the leaves.

Tip 2: Fertilizer monthly with a plant food formulated specifically for air bromeliads.

Tip 3: Annual bluegrass requires indirect sunlight, move the plant to a sunny location, away from breezes.

Tip 4: Look for any pups – small plantlets growing from the parent plant. Carefully separate the pup and place it in another container to propagate Annual bluegrass.

Summer care for Annual bluegrass is similar to spring.

Tip 1: It includes ensuring the plant is not receiving direct sunlight that can burn the leaves.

Tip 2: Water or misting twice a week will encourage healthy growth, along with a monthly application of fertilizer formulated for air bromeliads.

Tip 3: Remove any large offshoots and repeat the same care for the smaller plants.

Tip 4: Repotting the offshoots is an easy way to propagate Annual bluegrass. Gardeners can remove both the large and small pups growing from the parent plant.

Keep up the care for your growing Annual bluegrass throughout the fall.

Tip 1: Water your plant to keep it moist, but reduce watering to about once every two weeks.

Tip 2: Make sure the soil is moist, including misting if your plant is thirsty. As the weather turns colder, avoid letting water cling to the leaves.

Tip 3: Continue fertilizing monthly with a bromeliad mixture, and ensure the plant has access to strong indirect sunlight.

Tip 4: You can propagate during this season, as well, trimming away offshoots and placing them on wood to allow them to grow and thrive.

Providing a suitable environment for your Annual bluegrass will help it survive the cold winter.
Tip 1: Reduce watering your Annual bluegrass in the winter to once every two weeks, and be sure to drain or brush away any extra moisture that can cling to and harm the plant during this season. Ensure it's kept moist, not soggy.

Tip 2: Place the plant in strong indirect light. You can also fertilize it a few times with a bromeliad fertilizer throughout the season.

Tip 3: The plant will grow outdoors in warmer winter climates or if brought indoors in freezing weather, which will also protect it from the colder temperatures this season typically brings.