'Changsha' tangerine is very much like the satsuma
which it resembles greatly. The fruit itself is about the size
of a satsuma, with bright orange peel. The quality is not as
good as satsuma and the fruit is very seedy. The tree is a bit
more upright-growing than satsuma and is probably more cold-hardy
than satsuma and kumquat, having been observed growing and fruiting
as far north as Ft. Worth, Texas.
'Changsha' is a seedling tangerine that was once popular in
Texas landscapes because of its relative cold hardiness. Two
mature trees have been observed in production at the O.S. Gray
nursery in Arlington, TX, in 1973. Trees grown from seed are
more cold tolerant than budded trees.
'Changsha' comes true from seed and the seedlings will produce
within a few years. 'Changsha', perhaps the most cold hardy of
all the sweet citrus fruits. Mature satsumas and 'Changsha' tangerines
can tolerate temperatures as low as 15 degrees F. or lower if
they have become cold-acclimated. A sudden freeze to 25 degrees
F. without any previous cold weather can be more damaging than
a freeze to 20 degrees F. that comes after a period of low temperatures.
Freeze damaged mandarins may lose some leaves, but they usually
recover. Small trees, less than 2 or 3 years old are not as cold
hardy as bearing trees. 'Changsha' has survived 4 degrees F. temperatures
near Dallas, Texas.
Calamondins can tolerate 15 degrees F. but 'Changsha' tangerines
can tolerate 8 degrees F. or below. Changsha seedlings can also
be used for rootstock on which to bud or graft satsumas as described