Introduction
Osmanthus x burkwoodii, also known as Burkwood osmanthus or sweet olive, is a small evergreen shrub that is commonly grown for its sweet-scented flowers and attractive foliage. It belongs to the family Oleaceae and is a hybrid of Osmanthus decorus and Osmanthus delavayi. The plant is native to China and was first introduced to the Western world in the early 1900s.Appearance
Burkwood Osmanthus is a slow-growing shrub that can reach a height of 10 feet and a spread of up to 6 feet. It has an upright, dense growth habit and oval-shaped leaves that are 1-2 inches long. The leaves are shiny, dark green on top, and lighter on the underside. In the fall, some leaves turn bronze or purplish in color. The plant produces small white flowers that are incredibly fragrant and bloom in clusters from late winter to early spring. The flowers are inconspicuous, about 1/4 inch across, and have a sweet, apricot-like fragrance.Uses
Burkwood Osmanthus is a popular plant for gardens and landscaping due to its beautiful fragrant flowers and glossy, dark green foliage. The plant is perfect for hedging, as it responds well to pruning and can be shaped into an attractive, low-growing hedge. It can also be grown as a specimen plant in a container or planted in a mixed border. Osmanthus x burkwoodii is relatively low maintenance and can thrive in a variety of conditions, including full sun or part shade. The plant prefers well-draining soil and is relatively drought tolerant once established.Conclusion
Overall, Osmanthus x burkwoodii is an attractive plant with fragrant flowers and glossy foliage that make it perfect for gardens or landscaping. With its low maintenance and drought tolerance, it is an excellent choice for gardeners who want a beautiful plant without too much effort. Its fragrant flowers make it an enjoyable addition to any garden or outdoor space, making it a delightful, sweetly scented addition to any garden space.Light Requirements
Osmanthus x burkwoodii prefers partial shade to full sun exposure. It can tolerate low light but may not bloom as profusely. Full sun can dry out the soil, so it's important to keep the plant well-watered if it's exposed to direct sunlight.
Temperature Requirements
Osmanthus x burkwoodii is a hardy plant that can withstand cold temperatures. It can grow in USDA hardiness zones 6 to 9, where temperatures can range from -10°F to 20°F (-23°C to -6°C) in winter. It also tolerates high temperatures, but in very hot climates, it may require some shade in the afternoon.
Soil Requirements
The ideal soil for Osmanthus x burkwoodii is well-draining with a slightly acidic to neutral pH (6.0 to 7.5). It can grow in a variety of soil types, including clay, loam, and sandy soils, as long as they are well-draining. Regular applications of organic matter, such as compost, can help improve the soil quality and provide nutrients for the plant.
Cultivation of Osmanthus x burkwoodii
Osmanthus x burkwoodii is a versatile plant that can grow in a variety of soil types, including clay, sand, and loam. It grows best in areas with full sun to partial shade, such as near a south-facing wall or under a large tree. In colder areas, plant Osmanthus x burkwoodii in a sheltered location to protect it from strong winds and frost.
Watering Needs for Osmanthus x burkwoodii
Osmanthus x burkwoodii requires a moderate amount of water to thrive. Water the plant deeply once a week during the growing season, and reduce watering during the winter months. Avoid overwatering, as this can lead to root rot and other fungal diseases.
Fertilization of Osmanthus x burkwoodii
Osmanthus x burkwoodii responds well to regular applications of fertilizer. Use a balanced fertilizer, such as 10-10-10, and apply it every six weeks during the growing season. Be sure to follow the instructions on the fertilizer packaging, as over-fertilization can damage the plant.
Pruning of Osmanthus x burkwoodii
Pruning Osmanthus x burkwoodii is essential to maintain its shape and health. Prune the plant after it has finished flowering, usually in late spring or early summer. Remove any dead or diseased wood, and cut back any branches that are crossing or rubbing against each other. You can also shape the plant by removing any branches that are growing in the wrong direction or too close to the ground. Avoid pruning too much, as this can cause stress to the plant and reduce its flower production.
Propagation of Osmanthus x burkwoodii
Osmanthus x burkwoodii is a beautiful evergreen plant that is known for its clusters of fragrant white flowers. This plant is easy to propagate through several methods including:
Seed Propagation
Propagation of Osmanthus x burkwoodii through seeds is possible but not easy. The seeds are slow to germinate, and it can take up to two years for the plant to grow into a small sapling. The seeds should be sown in a well-draining soil mix and kept moist throughout the germination process. After the seedlings emerge, they should be transplanted into individual containers.
Semi-Hardwood Stem Cuttings
Semi-hardwood stem cuttings are one of the most successful ways to propagate Osmanthus x burkwoodii. The best time to take the cuttings is between midsummer and early autumn. The cuttings should be taken from firm, green stems that are just starting to turn woody. The cuttings should be around 6 inches (15 cm) long and stripped of most of their foliage.
The cuttings should be dipped into hormone rooting powder, shaken to remove the excess, and then inserted into a well-draining rooting medium. The pot should be covered in a clear plastic bag to retain moisture and placed in a bright, warm area. After around 8 weeks, the cuttings should have developed roots and can be transplanted into individual pots.
Layering
Layering is another successful propagation method for Osmanthus x burkwoodii. To do this, select a low-hanging branch and identify the section that is closest to the ground. Bury the section of branch in the soil, without detaching it from the main plant, and keep it moist. Over time, the buried section of the branch will develop roots and can be cut away from the parent plant to create a new one.
Overall, Osmanthus x burkwoodii is a relatively easy plant to propagate, and there are several techniques that can be used successfully.
Disease Management
Osmanthus x burkwoodii, commonly known as Burkwood osmanthus, is susceptible to various fungal diseases, including leaf spot, root rot, and powdery mildew. To manage these diseases, it is essential to keep the plants healthy and well-maintained. Regularly prune any dead or diseased branches to prevent the spread of the disease.
For leaf spot, remove any infected leaves as soon as possible and avoid overhead watering. Use a fungicide if the infestation is severe. In the case of root rot, avoid overwatering, ensure adequate drainage of soil, and consider using a fungicide to prevent further damage. Powdery mildew can be managed by maintaining proper air circulation around the plants and avoiding wet foliage. Fungicides can also be used to control powdery mildew.
Pest Management
Osmanthus x burkwoodii is generally resistant to pests, but some common pests can affect the plant, such as scales, aphids, and spider mites. Regular monitoring of the plant's foliage can help detect these pests early, preventing further damage.
To manage scales and aphids, use a strong stream of water to wash them off the leaves. Alternatively, insecticidal soap or neem oil can be used to control the infestation. Spider mites can be managed by spraying the foliage with water or using insecticidal soap.
It is crucial to avoid over-fertilizing the plant, as this can attract pests. Also, ensure that the plant is adequately watered but not overwatered, as this can lead to ideal conditions for pests to thrive.
