Korean Boxwood (Buxus microphylla koreana) - Pollination Info

Flower Structure:

Korean Boxwood, also known as Buxus microphylla koreana, is a variety of boxwood plant. It produces small, inconspicuous flowers. The flowers are typically greenish-yellow in color and have a compact, clustered arrangement.

Pollination Method:

Korean Boxwood flowers are primarily pollinated by insects, especially bees and other flying insects. The flowers produce nectar as a reward for their pollinators, attracting them through scent and color.

Pollinator Attraction:

Korean Boxwood flowers are known to attract a wide range of pollinators, including honeybees, bumblebees, solitary bees, butterflies, and other beneficial insects. The fragrance and nectar production of the flowers make them particularly enticing to these insects.

Pollination Process:

When a pollinator, such as a bee, visits the Korean Boxwood flowers, they inadvertently transfer pollen from the male reproductive organs (anthers) to the female reproductive organs (stigma) of the same or another flower. This transfer of pollen allows for fertilization and the subsequent development of seeds.

Self-pollination:

Korean Boxwood has imperfect flowers, which means they possess either male or female reproductive structures but not both in the same flower. Therefore, self-pollination is not possible in these plants. Cross-pollination between individual plants is necessary for successful fertilization.

Fruit and Seed Production:

Following successful pollination, Korean Boxwood will develop small, rounded fruits known as capsules. These capsules house the seeds produced through fertilization. The seeds are small, often enclosed in a fleshy, three-lobed structure.

Korean Boxwood (Buxus microphylla koreana) FAQ

1. What is Korean Boxwood?

Korean Boxwood, scientifically known as Buxus microphylla koreana, is a compact evergreen shrub that originated in Korea. It is popularly used for hedging, borders, and topiary due to its small, dense leaves and ability to be pruned into various shapes.

2. How tall does Korean Boxwood grow?

Korean Boxwood typically grows to a height of 2 to 4 feet (60 to 120 cm) and has a similar spread. However, its growth rate is relatively slow, so it can take several years to reach its maximum size.

3. What are the ideal growing conditions for Korean Boxwood?

Korean Boxwood thrives in well-drained soil that is rich in organic matter. It prefers partial shade but can also tolerate full sun, particularly in cooler regions. It is important to provide adequate moisture without overwatering.

4. How often should Korean Boxwood be watered?

Young plants require regular watering until they establish a strong root system. After that, Korean Boxwood is relatively drought-tolerant and should be watered deeply but infrequently. A general guideline is to water once a week during hot, dry periods.

5. Does Korean Boxwood require pruning?

Yes, Korean Boxwood benefits from regular pruning to maintain its shape and promote dense growth. Pruning can be done in early spring before new growth appears or after the first flush of growth in late spring. It is advisable to avoid heavy pruning during the hottest months of summer.

6. Can Korean Boxwood tolerate cold winters?

Yes, Korean Boxwood is known for its exceptional cold hardiness. It can endure freezing temperatures and remains evergreen throughout the winter months. However, in extremely cold regions, some protection from harsh winds may be necessary.

7. Are there any specific pests or diseases that affect Korean Boxwood?

Korean Boxwood is generally resistant to most common pests and diseases. However, it can occasionally be susceptible to boxwood leafminer, boxwood mite, and boxwood blight. Regular monitoring and appropriate preventive measures, such as proper sanitation and selecting disease-resistant varieties, can help keep these issues under control.

8. How often should Korean Boxwood be fertilized?

Korean Boxwood benefits from an annual application of balanced slow-release fertilizer in early spring. It is best to follow the manufacturer's instructions for proper dosage based on the size of the plant. Additional fertilization may not be necessary unless the plant shows signs of nutrient deficiency.

9. Can Korean Boxwood be grown in containers?

Yes, Korean Boxwood can be grown in containers. It is essential to choose a large enough container with good drainage. Regular watering and occasional pruning to control the size and shape are necessary for container-grown Korean Boxwood.

10. How often should Korean Boxwood be repotted?

Korean Boxwood should be repotted every 2-3 years to ensure healthy root growth. Repotting can be done in early spring before new growth begins.

11. Can Korean Boxwood be propagated?

Yes, Korean Boxwood can be propagated through various methods such as cuttings, layering, and seed sowing. Softwood cuttings taken in late spring or semi-hardwood cuttings taken in midsummer tend to have higher success rates.

Planting & Care for Korean Boxwood (Buxus microphylla koreana)

Korean Boxwood is a versatile, evergreen shrub known for its compact size and dense foliage. It is commonly used for hedging, bordering, or as a foundation plant. Here are some guidelines for planting and taking care of Korean Boxwood:

Planting:

• Location: Choose a site with partial shade to full sun exposure. Korean Boxwood can tolerate a wide range of soil conditions but prefers well-draining soil.
• Digging the hole: Dig a hole that is twice as wide and slightly deeper than the root ball of the plant.
• Preparing the soil: Mix organic matter, such as compost or aged manure, with the backfill soil to improve drainage and fertility.
• Planting: Place the Korean Boxwood in the hole, ensuring that the top of the root ball is level with the ground. Backfill the hole with the amended soil mixture and gently firm it around the plant.
• Watering: Water the newly planted boxwood deeply to settle the soil. Keep the soil consistently moist but not waterlogged for the first few months until the plant establishes.

Care:

• Watering: Once established, Korean Boxwood is fairly drought-tolerant. However, regular watering during hot and dry periods is essential, especially in the first year.
• Fertilizing: Apply a balanced, slow-release fertilizer in early spring to promote healthy growth. Follow the manufacturer's instructions for the application rate.
• Pruning: Prune Korean Boxwood in late winter or early spring before new growth emerges. This helps maintain the desired shape and size of the shrub. Remove any dead or diseased branches as needed.
• Mulching: Apply a layer of organic mulch, such as wood chips or shredded bark, around the base of the plant. Mulching helps conserve moisture, suppress weeds, and moderate soil temperature.
• Pest and disease control: Korean Boxwood is generally resistant to pests and diseases. However, monitor for common boxwood pests like boxwood leafminer or boxwood mites. Treat any infestations promptly with appropriate insecticides or horticultural oils.
• Winter protection: In areas with harsh winters, consider protecting Korean Boxwood with burlap or anti-desiccant spray to prevent winter burn or damage from freezing temperatures.