When you planted it, did you check to see if it was really one plant
with two leaders or possibly two plants each with one leader? I suspect
from the photos that the latter is true. Cut down the dead plant, and
keep the live one.
Actually, the live plant will not maintain a leader at all. It will
branch repeatedly without any dominant central trunk more than 2-3 feet
above the pot. This seems to be a Japanese maple (Acer palmatum),
possibly a 'Bloodgood'. These are rather small trees, 'Bloodgood' being
among the largest, eventually reaching 15 feet if planted in the ground.
It will never get that large in a pot.
--
David E. Ross
Climate: California Mediterranean, see
<
http://www.rossde.com/garden/climate.html>
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