My Humboldt plants have no buds, what am I doing wrong?

I’ve been growing Humboldt feminized plants for a few months now, but they don’t seem to be producing any buds. The plants are healthy and green, but they’re not flowering at all. What could be causing this issue, and how can I get my plants to start producing buds?

Why are my Green Crack autoflower plants not producing buds?

I’m growing Green Crack autoflower seeds, and I’ve noticed that some of my plants are not producing buds. They’re growing leaves just fine, but there are no signs of flowers. What could be causing this issue, and how can I encourage my Green Crack plants to start flowering?