B. microphylla var. koreana X B. sempervirens 'Green Mountain'
is an more upright form of boxwood with small dark green leaves. It's an
excellent shrub for hedging. Seems to hold good green color much better
than most boxwoods through the winter months. Requires cool, moist soil
conditions. Decent growth rate when compared to typical boxwood varieties, and will make an excellent, low maintenance medium height hedge within a few years.
Green Mountain Boxwood is probably better suited for hedges that require slightly more height than width, and in situations where attaining height is a higher priority. It is probably NOT the preferred boxwood variety, however, for low growing, extremely formal, or "knot" type hedges due to it's more upright growth habit.......unless you just enjoy the extra trimming that would be required to keep Green Mountain at heights of 2-3 feet or below, lol. For lower growing boxwood hedge projects ( 3 feet in height, or less ), we suggest looking at some of our other boxwood selections.
Plant Facts & Specifications
Mature Height: 5 - 6 ft
Mature Width: 2 1/2 - 3 ft.
Growth rate: Moderate ( 6" - 8" avg per yr )
Sun Exposure: Full to partial sun - will even do very well in partial shade areas.
Soil Preference: Average. Slightly cool & moist - fertile. Mulching recommended.
Foliage Color & Texture:
Evergreen broadleaf - very
typical of most B. microphylla varieties - small, oval shaped. Good
dark green mature foliage - newer foliage growth slightly brighter
green. Good density. Holds nice green color throughout the winter in most colder climates.
Flower, Cone, Or Berry Facts: Flowers - very
small, rather inconspicuous, creamy yellow flowers develop in small clusters in April - May,
and are actually quite fragrant for the brief time that they are
present. Will attract bees while in bloom.
Diseases / Insects: Among
the more prevalent problems one might be confronted with when growing
Boxwood would be: Canker, root rot, boxwood leaf miner, boxwood
webworm, nematodes, and boxwood mites. Most all of these pests /
problems are much more commonly seen on Buxus sempervirens cultivars -
other variations / hybrids seem to show much more resistance to these
problems. Root rot ( Phytopthora ) can be a problem in inadequately
drained soils, and is usually indicated by a lighter "off color" to the
foliage. Annual treatment / inspection is strongly recommended during
the early growing season in order to monitor any possible problems, and
as a preventative action.
Recommended Spacing: A spacing of about 24" apart is recommended for most typical hedge applications.
Deer Resistance Rating: Lowest Resistance [ 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 ] Highest Resistance
Fertilization / Feeding: For maximum health & hardiness, we highly recommend POOPeas
for use with all of evergreen species.
However, either water soluble ( Miracle Gro, or equivalent ), or
granular fertilizers ( Holly Tone is excellent ) are also good options. Most any granular fertilizers with a 6 - 12 - 12, or
10 - 10 - 10 ratio are also acceptable. Best to fertilize in early spring,
and again in mid fall - avoid feeding standard chemical fertilizers
during hot summer months, and directly after transplanting. POOPeas may be used at anytime.Additional Features & Characteristics:
Occasional Trimming Recommended: As
with most all Boxwood varieties, we suggest a light trimming / shaping
be performed 1-2 times per year to enhance foliage density &
maintain overall desired shape.