You will want to retrieve a cutting before flowering, actually. And when you do retrieve a cutting, you will want to dip it in rooting solution before planting, and to keep the soil lightly moist. And if you keep cutting it if it's large, expect a large sacrifice in overall yield and quality of bud.


In general, depending on size and distance between nodes, you would want to aim to retrieve cuttings two weeks before the flowering cycle. If it is an autoflowering plant you are working with, you CAN take cuttings, but these plants are more suitable to grow straight from seed, considering they grow fast enough as it is, so pollinating of one branch would be advised.