These are deciduous plants and will lose their leaves regardless of how you
grow them.
Flowering is probably initiated by the drop in temperature.
Flowering occurs on two year old growth, which is after maturity, and
frequently will rebloom the third year.
Yamamoto will grow these to maturity and obtain flowers on one year old
growth-but, this is done by growing at sea level in Hawaii to maturity and then
transporting to the mountains for a drop in temperature and getting flowers on
the first year's growth. This does not occur in nature and you will not be able
Thanks again.

Just to be sure I understand this, the older canes will produce new
leaves and flowers after each cold, dry spell. Is that right? When
do they put out new canes, and is there anything that canbe done to
stimulate the production of new canes? I ask because the himezakura
doesn't have a new cane. Rather, it has three older canes, the
youngest having bloomed at least once before, but is covered in
inflorescences. The second youngest has only a couple leaves and two
keikis, and the oldest, scarely more than 1 cm long, has nothing on
it. The spring dream, though, has two clearly new canes that are
actively growing and apparently have never bloomed (and neither has
any inflorescences), and one middle aged cane that has a decent number
of inflorescences, and two old canes that have nothing on them
(although one might have had but had recently been broken off at a
height of about 3 cm). And on this one too, the oldest canes is
scarcely more than 1 cm long.

Thanks,

Ted