Origin:
Lasiochloa hispida, also known as Japanese bloodgrass, is a perennial grass species that is native to Southeast Asia and Japan.
Common Names:
Aside from Japanese bloodgrass, Lasiochloa hispida is also commonly referred to as Asian bloodgrass, Chinese bloodgrass, Korean bloodgrass, and hairy Lasiochloa.
Uses:
Japanese bloodgrass is widely used as an ornamental plant due to its striking and distinct appearance. It is often grown in gardens, parks, and other landscaped areas for its vivid red foliage. Additionally, Lasiochloa hispida is commonly used in traditional Chinese medicine for treating various ailments such as fever, diarrhea, and inflammation.
General Appearance:
Lasiochloa hispida typically grows to a height of 1-2 feet and spreads to a width of up to 2 feet. Its long and narrow leaves are green with reddish-purple tips, maturing to a deep burgundy or maroon color as the plant ages. The leaves have a rough texture and can be sharp, earning the plant its common name 'bloodgrass'. In the summer, Lasiochloa hispida produces attractive panicles of spikelets that are reddish or purplish-brown in color.
Light Requirements
Lasiochloa hispida can grow in a wide range of light conditions. It can tolerate both partial shade and full sun. However, for optimal growth, it requires moderate to bright sunlight exposure. In areas with intense sunlight, it is recommended to provide some shade during the hottest times of the day.
Temperature Requirements
This plant can tolerate a broad range of temperatures. It can survive in temperatures as low as 10°C and as high as 40°C. Ideally, the plant grows well in a temperature range of 20°C to 30°C. It is recommended to avoid exposing the plant to extreme temperature fluctuations as this can cause stress and affect its growth.
Soil Requirements
The ideal soil conditions for the growth of Lasiochloa hispida are well-draining soils that are rich in organic matter. The soil type can vary from sandy loam to clay loam soils with a pH range of 6.0 to 8.5. The plant can tolerate a slightly acidic to slightly alkaline soil. Before planting, it is recommended to prepare the soil by adding organic matter to improve its nutrient content and drainage.
Cultivation Methods
Lasiochloa hispida (Thunb.) Kunth is an easy-to-grow plant that prefers warm, humid conditions. It can be grown in well-drained garden soil or in containers filled with quality potting mix. The best time to plant this grass is during the spring or fall. The plant requires full sun to partial shade and can grow up to 3 feet tall and 2 feet wide.
Watering Needs
The watering needs of Lasiochloa hispida (Thunb.) Kunth change depending on the season and climate. During hot and dry weather, it is essential to water the plant deeply, ensuring the soil is moist. However, overwatering can lead to root rot, and the plant should not sit in standing water. During the winter months, it is important to reduce watering frequency as the plant goes into a dormant state.
Fertilization
It is important to fertilize Lasiochloa hispida (Thunb.) Kunth to promote healthy growth. Fertilize the plant during the growing season every three months, using a balanced slow-release fertilizer. Overuse of nitrogen-rich fertilizers can lead to rapid growth and reduced plant resilience against pests and diseases.
Pruning
To keep the Lasiochloa hispida (Thunb.) Kunth looking tidy, it is necessary to prune the plant. Prune the dried or damaged leaves and stems as they appear. The plant can be cut back to about 6 inches from the ground during the winter months to remove dead foliage and branches. Pruning should be done with a clean and sharp pair of pruning shears to prevent disease spread.
Propagation Methods for Lasiochloa Hispida (Thunb.) Kunth
Lasiochloa hispida, commonly known as Korean-grass or Korean-jobs-tears, belongs to the family Poaceae. It is a warm-season perennial grass that is native to China, Japan, and Korea. Propagation of Lasiochloa hispida can be done through various methods, which are as follows:
Seed Propagation
Propagating Lasiochloa hispida seeds are the most common method of propagation. The grass produces panicles that bear spikelets containing multiple seeds. The seeds can be collected by harvesting the mature panicles and allowing them to dry. Sow the seed in a well-prepared seedbed, and cover it with a light layer of soil. The best planting time is in the spring or autumn, with germination occurring within 7 to 14 days.
Vegetative Propagation
Lasiochloa hispida can be propagated through stem cuttings. The stem cuttings must be taken from the parent plant during the growing season when it is actively producing new growth. Cuttings with at least one node should be taken from the base of the stem. Dip the cuttings in rooting hormone, and plant them in a well-draining potting mix. Keep the soil moist and warm, and within 2-4 weeks, root formation should occur. Once the roots have formed, transplant the young plants into a larger pot or the ground.
Division Propagation
Another method of propagating Lasiochloa hispida is through division. Division method is most useful for mature clumps that have become too large and needs to be propagated. The clump can be divided into several smaller sections with a sharp knife or shovel. The newly divided sections should then be replanted in a location where they can establish themselves.
Disease and Pest Management for Lasiochloa hispida
Lasiochloa hispida, commonly known as Korean lawngrass or Korean velvet grass, is a hardy and low-maintenance plant that is used for turfgrass in many parts of the world. However, like any other plant, it is prone to some diseases and pests that can affect its growth and health. Here are some common diseases and pests that might affect Lasiochloa hispida and how to manage them:
Diseases
1. Leaf spot diseases: Leaf spot diseases, caused by various fungi, affect the leaves of the grass and cause small, circular or irregularly shaped spots. The spots might be reddish-brown, tan, or gray in color and might have a dark border. In severe cases, the leaves might turn yellow or brown and die.
To manage leaf spot diseases, keep the grass healthy and avoid overwatering. Fungicides might also be applied, but it is important to follow the label instructions carefully.
2. Rust: Rust is a fungal disease that causes orange or yellowish-orange blotches on the leaves. The grass might also turn yellow and weaken.
Rust can be managed by improving air circulation and reducing moisture on the leaves. Fungicides might also be used, but they should be used as a last resort.
Pests
1. Armyworms: Armyworms are green or brown caterpillars that feed on the leaves and stems of the grass. They might cause brown patches and thinning of the grass.
To manage armyworms, apply insecticides that are labeled for armyworm control. Make sure to target the areas where the armyworms are feeding.
2. Grubs: Grubs are the larvae of beetles, such as Japanese beetles and June beetles. They feed on the roots of the grass and might cause the grass to wilt and die.
To manage grubs, apply insecticides that are labeled for grub control. It is important to apply the insecticides at the right time, usually in late spring or early summer, when the grubs are most vulnerable.
Overall, the best way to prevent diseases and pests in Lasiochloa hispida is to keep the grass healthy and well-maintained. This includes regular watering, fertilization, and mowing, as well as monitoring for any signs of problems.
