When the plants start receiving 12 hours of darkness each day, they âthinkâ that winter is close, and prepare to produce offspring.The first of the cannabis flowering stages, therefore, includes a major spurt of vegetative growth aimed at giving the plant ample size and strength to support those coming buds. Week 6 And 7. Swelling calyx's can be more noticable. At week 7 of the cannabis flowering stage, your cannabis plant should still be mostly green and healthy, and itâs normal for a few leaves at the bottom to start turning yellow. Week 7: Development of trichomes . Flowering Week by Week. Within three or four days of initiation to a daily dark period of 10-11 hours, cannabis changes its growth pattern from vegetative to flowering. Week 1: The plant slows down its growth Week 7 flowering 7 weeks of flowering Amount of light 100% Light distance 20 inches Light duration 12 hours Temperature day/night 77/64 Humidity 40% pH 6.0 EC 1.8 Your buds are starting to become really big and the plant still needs nitrogen, phosphor and all other nutrients, but needs potassium more than anything. The plants odor intensifies in the seven week maturing plants. i thought it was nute burn and flushed her out but she continued to slowly dwindle. Most modern plants take 7-9 weeks, although some sativa strains take longer. Cannabis Flowering Stage Week By Week, The Flowering cycle is the third major cycle after the Germination and Vegetative cycle. You will notice a very strong odor coming from your plants as they continue to â¦ There are, however, not too many strains that will be ready before week 8. WEEKS 6, 7 AND 8 (LATE FLOWERING STAGE, RIGHT BEFORE HARVEST) Not all cannabis strains require the same amount of time for their flowering, but many varieties will be ready to harvest in these last three weeks. As all strains have different flowering times it is hard to say when yours will be ready, however the average plant will be ready to start flushing around the end of week 7. Week 7: At the end of this week, the seven week maturing plants will have very swollen calyx's as they fill with THC. Week 1-3: The Flowering Stretch. If you grow strains with an average flowering time, the majority of bud development will occur by the 6th week of bloom. Late flowering stage (Weeks 6,7) From week six to the last week of flowering, your plants will give you more indications that they are ready for harvesting. After that it is on a course that ends with bud ripening. Week 6: Flower growth continues for eight week maturing plants and flower growth slows and stops in seven week maturing plants. In the seventh week of flowering you will probably see an abundance of resin all over the buds and surrounding foliage, this is when youâll definitely need a carbon filter or any other way to mask the strong cannabis aroma. This bud is in week 3 of the flowering stage Most strains need 2-3 months in the flowering stage before theyâre ready to harvest, though some strains are a bit faster and some strains, such as some sativa and hazes , can need as long as 4 months of flowering before theyâre ready (though there are tricks to get them to mature faster ). When you lower the lighting from 16 to 12 hours, you enter into the flowering stage. Week 8+: End of Floweringâ¦ A Cannabis Plant 6 weeks into the flowering stage The flowering cycle of a Cannabis plant is very similar to that of any other plant and herb. In the last two weeks, the buds will mostly be ripening and not really growing much more in size. Let us now take a detailed look at the cannabis flowering stages week by week: Cannabis Flowering Stages: A Week By Week Look Weeks 1-3: In the first three weeks of the flowering process, you will start off by reducing the photoperiod down to 12 hours. i am almost to the end of my 7 weeks of flower and the white hairs on my buds are almost all brown and looking nice but for the past week the leaves have turned for the worst. The odor becomes even stronger to a point of a stinking stench of cannabis all around the growing space. THE FINAL 2 WEEKS OF FLOWERING.