
In a
family of choice garden trees, the coral-bark
maple is quite distinctive, especially in
late winter when its coral-red twigs are most
obvious. A small tree of twiggy growth, it
stands like a beacon if placed where wintry
afternoon sun lights its branches. If this
occurs with some snow on the ground, it makes
for an unforgettable scene.
But the
coral-bark maple, Acer palmatum Sango
kaku, formerly Senkaki,
does not confine its beauty to the winter
period. When the new leaves appear in spring,
they are yellow-green and tinged with red
along the leaf edge. The effect is very
striking. Later the red tone fades and the
leaves become more green, but still lighter
in colour than the ordinary green Japanese
maple.
In autumn, this
variety begins to lighten in tone and
eventually changes to bright yellow with
reddish undertones. It is very beautiful at
this period too. Sometimes a few yellow
leaves hang on at the tips of the shoots
while the red bark colour develops in
November. It grows on acid or limy soils but
colours better on acid soil.
Like many
Japanese maples, Sango kaku is
not tolerant of exposure to wind. Although it
can be very vigorous and fast-growing as a
young tree on well-drained acid soil, its
twigs are light and easily die back when
subjected to strong wind exposure. It needs
to be placed where some taller trees break
the prevailing wind. This can make it
difficult to find a place where it will get
the afternoon sun but not the westerly wind.