damnit, just snapped a branch completely off a 1 week flowering plant. I stuck it in water, but what happens to the main plant. There's still half a branch sticking off the main stem, but it's just a stem with no leaf matter.
That happened to me last summer. I put the stem in water. I scraped nodes below the water line and roots grew so I planted, vegged, and flowered. Amazing how resilient MJ is!