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The Korean boxwood is known for its excellent winter hardiness and tolerance to pruning and shearing. It is a dense, rounded broadleaf evergreen shrub native to the mountain forests of the Korean Peninsula and northern China.
Small, oval, deep glossy green foliage covers this shrub all season but may turn yellow or bronzy brown in winter. In spring it offers tiny, fragrant, green-yellow flowers that are visited by bees. The fruit is inconspicuous.
Resilient to a wide range of soils (acid to slightly alkaline), Korean boxwood is also quite tolerant of summer heat and humidity as well as winter cold. It grows best in partial sun and well-drained soils. Full sun exposures are only tolerated where seasons are mild. It benefits from mulching to keep its roots cool and moist. Its primary weakness is a susceptibility to leaf dessication and scald caused by drying winter winds and sun.
Major pruning is best done early in the season. (info source: learn2grow.com)
Genus - Buxus
Species - Microphylla Koreana
Common name - Korean Boxwood
Pre-Treatment - Required
Hardiness zones - 4 - 8
Height - 4'-9' / 1.2m - 2.7m
Spread - 3'-6' / 0.9m - 1.8m
Plant type - Small Shrub
Vegetation type - Evergreen ornamental
Exposure - Full Sun, Partial Shade
Growth rate - Slow
Soil PH - Acidic, Neutral
Soil type - Loam, sand
Water requirements - Average Water
Landscape uses - Container, Edging, Foundation, Hedges, Rock Garden / Wall
Germination rate - 80%
Bloom season - Late Spring
Leaf / Flower color - Green, Dark green / Yellow Green
| Useful Info | |
| Germination | Seeds are quite easy to germinate. Moist, chilling period will increase germination rate and speed. This treatment is called stratification. Here are the steps to stratify the seeds: 1. Place the rough side of a square of sandpaper rough side up. Put six or seven seeds onto the sandpaper square. Place another square of sandpaper, rough side down, over the top of the seeds. Rub the two squares of sandpaper back and forth approximately five times. Scratching the boxwood seeds is necessary for germination. It is called scarifying. 2. Soak overnight in warm water. 3. Place the seeds in a moist material such as milled sphagnum peat, sterile soil or vermiculite. Fully drain away all of the water and place the seeds in a zip-lock bag. Place the seeds in the fridge, watch out - the seeds can’t dry out or be waterlogged otherwise the pre-treatment will be ineffective. 4. Refrigerate the seeds for 2-3 months at 33 to 41 degrees Fahrenheit (+2 – +4C). 5. After the seeds are stratified, plant them a 1/16” deep in a container filled with a moist, well-drained germination medium. Tamp the soil. Cover with glass or plastic and keep the container moist, but not soggy. Seeds should germinate at room temperature. As soon as the seeds germinate, place them under bright lights or move them to a greenhouse or cold frame. Another method is to plant seeds outdoors in well prepared beds in October or before the winter. If it does not rain, then water the seedbeds before the ground freezes. The seeds will naturally receive cold treatment during the winter. The seeds should start to germinate when the seedbed warms up in the spring. When large enough to handle, prick the seedlings out into individual pots and grow them on in a cold frame for their first winter. Plant out in late spring. |
