i have a phal in my office, about 2~3month ago a new spike started to grow
from the old one which was cut back by myself more than 3months ago.

This was followed by a second new spike about a month ago. But i notice that
both the new spikes seem to have stopped growing longer after extending
about 4~5cm from the old spike. There is sign of drying out at the
tips...but is this normal?

if not, how cold i rectify this? how long typically does it take for the
spike to grow to flowering?

Appreciate the advise...thanks!!