Oops that was me.
I was going to say, I usually won't look for sex until the branches start alternating
" From a physical standpoint sexual maturity begins at the onset of alternating phyllotaxy, the arrangement of leaves on a stem. Early into vegetative growth petioles (what connects leaves to the main stem) are parallel to each other in respect to the petiole sets on both the nodes above and below. At the onset of sexual maturity, these petiole sets begin to alternate at every node, becoming perpendicular to the leaf set above and below them. Basically, alternating arrangement of leaf sets indicates pre-flowers will begin showing soon! "
Trying not to plagerize, but it's been a while since english and literature class.