Origin
Lepturus radicans (Steud.) A.Camus x L. repens (G.Forst.) R.Br. ex Hell. belongs to the family Poaceae and is commonly found in Australia, New Zealand, Fiji, Vanuatu, and Indonesia.
Common Names
The plant is commonly known as creeping lepturus or mat grass.
Uses
Lepturus radicans x L. repens is often used as a groundcover due to its ability to form a dense mat-like growth. In some areas, it is also utilized for erosion control as it can effectively prevent soil from washing away during heavy rains. The plant is also planted in gardens and landscapes to add texture.
General Appearance
The creeping lepturus has a unique, grassy appearance with narrow stems and elongated leaves, forming a dense mat on the ground. The plant can grow up to 15 centimeters tall and has a bright green color. Its flowers are small and spike-like, with a beige color.
hereLight Requirements
Lepturus radicans x L. repens require full sunlight exposure for optimal growth. Exposure to less than full sunlight causes stunted growth and can hinder flowering. Therefore, it is recommended to plant these species in areas with direct sunlight exposure for at least six hours per day.
Temperature Requirements
Lepturus radicans x L. repens prefer warm temperatures between 18 and 25°C (65-77°F). These plants cannot tolerate frost or extreme cold temperatures. It is recommended to keep the temperature above 10°C (50°F) throughout the year to ensure the plants thrive.
Soil Requirements
The plant requires well-draining soil that is rich in nutrients. The ideal soil pH ranges from 6.0-7.5. The soil must be well-aerated since waterlogged conditions lead to root rot and hinder growth. To improve soil quality, add organic matter to improve soil fertility, porosity, and drainage. The use of fertilizers with low nitrogen levels can benefit its growth since excessive nitrogen can lead to the development of soft growth.
Cultivation Methods
Lepturus radicans x L. repens, also known as Hell's grass, is an easy-to-grow plant that can thrive in a wide range of soil types. It prefers well-draining soil with a pH range of 6.0-7.5. Plant the seeds directly in the soil or propagate by sowing seeds indoors and planting the seedlings outdoors when they are at least 4 inches tall. Hell's grass can tolerate full sun to partial shade, making it a versatile addition to gardens and landscapes.
Watering Needs
Regular and consistent watering is essential for the growth and development of Hell's grass. Water the plant deeply once a week during the growing season, providing sufficient water to soak the soil to a depth of 6-8 inches. Reduce the frequency of watering during the winter months, allowing the soil to dry slightly between watering sessions. Avoid overwatering, as it can lead to root rot and other fungal diseases.
Fertilization
Hell's grass can benefit from regular and balanced fertilization to promote lush, healthy growth. Use a slow-release fertilizer with a 3:1:2 NPK ratio and apply it once in early spring and once in midsummer. Alternatively, you can use organic fertilizers, such as compost or manure, to enrich the soil naturally. Avoid overfertilization, as it can cause the plant to become leggy and weak.
Pruning
Hell's grass is a low-maintenance plant that does not require much pruning or trimming. However, you can trim the plant lightly in early spring to remove any damaged or dead foliage and promote new growth. Avoid heavy pruning, as it can weaken the plant and reduce its overall health and vitality.
Propagation of Lepturus Radicans x L. Repens
Lepturus radicans x L. repens, commonly known as Coastal Lepturus, is a slowly spreading, perennial grass. It is a hybrid plant, first introduced in California. The plant is commonly propagated through division, seed, and cuttings.
Propagation via division
Division is the most common method of propagating Coastal Lepturus. This is done by separating the plant into clumps of two or three shoots, with each section having roots. The best time to divide this plant is during the early spring or late fall, when the plant is not actively growing. Ensure that the soil is moist and the roots that are twisted or compressed, are gently untangled.
Propagation via seeds
Propagation through seed is also possible, but Coastal Lepturus has shown low seed viability. Seeds are best planted in a greenhouse or in containers to ensure germination. It is important to note that Coastal Lepturus seeds have a short lifespan and should be planted as soon as possible.
Propagation via cuttings
Coastal Lepturus can be propagated through stem cuttings, but this method is not commonly used. Cuttings should be taken from the root crown area, which is where the roots meet the stem. The cuttings should be six inches long, and the lower leaves should be removed. The cuttings should be inserted two inches into moist soil and kept in a shaded area. The soil should remain damp until the cuttings root, which should take two to four weeks.
Disease Management
Lepturus radicans x L. repens is relatively resistant to diseases. However, some diseases might still affect the plant. One possible disease is leaf spot caused by the fungus Cercospora. Symptoms include brownish spots on leaves. The best way to manage leaf spot is to practice good cultural habits, such as not leaving leaves and debris around the plant, ensuring proper ventilation, and not overcrowding the plant. Chemical control is also possible, but it should be used as a last resort.
Another possible disease is root rot caused by the fungus Pythium. Symptoms include yellowing of leaves and stunted growth. The best way to manage root rot is to avoid overwatering and ensuring proper drainage. If root rot has already set in, remove the affected parts and treat the plant with a fungicide.
Pest Management
Lepturus radicans x L. repens is relatively resistant to pests. However, some pests might still affect the plant. One possible pest is the aphid, which feeds on the plant sap and causes distorted growth and yellowing of the leaves. The best way to manage aphids is to remove them by hand or with a blast of water, introduce natural predators such as ladybugs or lacewings, or use insecticidal soap or neem oil.
Another possible pest is the spider mite, which feeds on the plant sap and causes yellowing of the leaves and webbing. The best way to manage spider mites is to remove infected leaves and spray the plant with water to improve humidity. Neem oil or insecticidal soap can also be used.
Finally, the plant might be affected by mealybugs, which suck on the plant sap and excrete a sticky substance that attracts ants and causes mold. The best way to manage mealybugs is to remove them by hand or with a blast of water, introduce natural predators such as parasitic wasps, or use insecticidal soap or neem oil.
