Actually, my plants are somewhat stunted too - on purpose,though..I have to keep them at or under 18" tallMy ability to stunt plants is truly a gift only given to a chosen few.
or they'll burn up from the light- when they reach the thermometer on the back wall of my box-they're as tall as they can be without negatively affecting the buds...That's why I keep training them even after they start to flower- keeps em shorter...sometimes too much shorter, like the 6"tall-CBD Pink Kush....I should of let that one go natural...but you just never know...