Origin
Lespedeza ×oblongifolia (Britt.) W. Stone, also known as bush clover, is a hybrid plant that originated in North America. It is a cross between Lespedeza capitata and Lespedeza bicolor.
Common Names
Lespedeza ×oblongifolia is commonly referred to as bush clover or round-headed lespedeza. It is also known as lespedeza sericea, although this name is more commonly used to refer to Lespedeza cuneata.
Uses
Lespedeza ×oblongifolia has several uses, including as a forage for livestock and as an ornamental plant. It is also used in erosion control and in habitats restoration projects. Additionally, it has been used in traditional medicine as a treatment for various ailments such as diarrhea and inflammation.
General Appearance
Lespedeza ×oblongifolia is a perennial plant that is typically less than 3 feet tall and has an upright growth habit. The plant has small, round, pink to purple flowers that bloom from August to October. The leaves are alternate, pinnately compound, and have three oval leaflets that are smooth on top with a hairy underside. The stem is round and brightly colored. The fruit is a small, dry pod that contains one to four seeds and is often used in crafts.
Light Requirements
Lespedeza ×oblongifolia requires full sun exposure for optimum growth. It can tolerate partial shade, but it may result in decreased flowering and growth rate. In areas with hot summers, it is best to provide afternoon shade to prevent scorching of the leaves.
Temperature Requirements
Lespedeza ×oblongifolia grows best in warm temperatures ranging from 70-90°F (21-32°C). It can tolerate occasional periods of drought but prefers moist soil. In areas with frosty winters, it is recommended to add a thick layer of mulch to protect the roots from freezing.
Soil Requirements
Lespedeza ×oblongifolia thrives in well-draining soils that are slightly acidic to neutral (pH 6.0-7.0). It can grow in a wide variety of soils, including sandy and clay soils, as long as they are not waterlogged. The plant prefers soils rich in organic matter, so adding compost or other organic materials to the soil can help improve growth and overall health.
Cultivation
Lespedeza ×oblongifolia, commonly known as bush clover, is a low-maintenance plant that is easy to cultivate. It prefers well-drained soil and full sunlight, but it can also tolerate partial shade.
Sow the seeds in early spring, preferably after the last frost. Spread the seeds on top of the soil and don't cover them with soil since the seeds require light to germinate. Water regularly to keep the soil evenly moist.
Once the bush clovers germinate and grow to about 6 inches tall, thin out the seedlings, leaving only the strongest ones and giving them enough space to grow without competing for resources.
Watering Needs
During the growing season, the bush clovers require regular watering to keep the soil moist but not waterlogged. Water once a week or when the soil dries out.
However, mature bush clovers can tolerate some drought conditions, so it's important not to overwater them, as this can lead to root rot or mold.
Fertilization
While bush clovers are generally low maintenance, they can benefit from a yearly application of fertilizer to encourage healthy growth and blooming.
In the early spring, apply a balanced, slow-release fertilizer, following the manufacturer's directions. Avoid applying too much fertilizer, as this can lead to excessive growth or damage to the plant roots.
Pruning
Bush clovers generally don't require much pruning, but trimming them can help to maintain their shape and prolong their blooming period.
In late winter or early spring, prune the bush clovers down to about 6 inches from the ground, just above a healthy bud. This will encourage new growth and more blooms.
If the bush clover is becoming too large or out of control, it can be pruned back heavily in the early spring, though this may reduce the number of blooms for that season.
Propagation of Lespedeza ×oblongifolia (Britt.) W. Stone
Lespedeza ×oblongifolia (Britt.) W. Stone or the Bush Clover is a flowering shrub that belongs to the Fabaceae family. It is commonly used in landscaping as an ornamental plant due to its attractive flowers and foliage.
Propagation Methods
The Bush Clover can be propagated through seeds, cuttings, and division. However, seed propagation is the most common method used:
- Seed Propagation: Collect the seeds in the late fall or early spring, just before the new growth starts. Soak the seeds in water for 24 hours before planting to soften the hard seed coat. Plant the seeds in a well-draining soil mixture and keep them moist until germination. The seeds will take about 2-4 weeks to germinate.
- Cutting Propagation: Take cuttings from semi-hardwood stems in the late summer or early fall. Dip the cut end into rooting hormone and plant it in loose soil. Keep the soil moist and in a shady location until roots develop. The newly rooted cuttings can be transplanted to a permanent location the following spring.
- Division: Dig up the plant in early spring before new growth emerges. Use a sharp knife or spade to divide the rootball into sections. Each section should have at least one healthy shoot. Replant the sections in the desired location.
Propagation of Lespedeza ×oblongifolia (Britt.) W. Stone is relatively easy and can result in rapid growth and a beautiful addition to any landscaping project.
Disease Management
Lespedeza ×oblongifolia is generally resistant to diseases. However, it may occasionally suffer from some common foliar diseases such as:
- Anthracnose: This fungal disease causes lesions that develop into sunken cankers on stems, leaves, and pods. It can be managed by pruning infected plant parts and applying fungicides.
- Leaf spot: This disease causes small, circular spots on leaves that may merge into large irregular patches. Affected leaves may yellow and fall prematurely. It can be prevented by avoiding overhead watering and applying fungicides.
- Rust: This fungal disease causes small orange lesions on leaves and stems. Affected parts may deform or drop prematurely. It can be managed by removing infected plant parts and applying fungicides.
Pest Management
Lespedeza ×oblongifolia is also generally resistant to pests. However, some common insects and mites that may infest the plant include:
- Aphids: These small insects suck sap from the leaves, causing them to wilt and eventually die. They can be controlled by spraying the plant with a strong stream of water or insecticidal soap.
- Spider mites: These tiny mites pierce the leaves and suck the sap, causing leaves to yellow and have a mottled appearance. They can be controlled by spraying the plant with a strong stream of water or insecticidal soap.
- Japanese beetles: These beetles feed on leaves, flowers, and fruits, causing extensive damage. They can be picked off manually or controlled with insecticides.
If pests become a severe problem, insecticides and miticides may be used with caution. Always follow the instructions on the label and avoid applying during bloom to protect pollinators.
