Cannabis When To Flower. Typically outdoor growers allow their plants to flower by themselves. Certain varieties like landrace sativas or haze begin to flower as late as september and can finish as late as february.
If you are growing your cannabis indoors from photoperiod seeds the flowering stage starts when you change to a 12 12 light schedule this is when the plants receive light for 12 hours and are in total darkness for 12 hours. Planning ahead of time is very important to ensure that not only do you harvest your plants at the right time but also that you successfully get them from harvest to a usable form. The start of the flowering period outdoors and how long your plants are going to flower for depends highly on the strain that you have chosen to grow.
If you take the longer route then prepare to have the space for it because when you flower most cannabis strains they can sometimes more than double in height and width.
This usually takes 3 4 weeks but can vary by the strain so be sure to consider your strain first. Certain varieties like landrace sativas or haze begin to flower as late as september and can finish as late as february. The start of the flowering period outdoors and how long your plants are going to flower for depends highly on the strain that you have chosen to grow. Indica strains will be better suited for this setup because they don t continue vertical growth as much as sativas do during flowering.
