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week 4 flowering

Week 4 flowering

From now on your plant won’t be making any new leaves or stems. It has completely switched gears away from vegetative growth and all its energy will be focused on growing buds from now until harvest.

At this point, you only have a few weeks left until you lose the ability to do any further training, so don’t miss this last opportunity to control the shape of your plant, especially if you’re running out of room!
“Budlets” start forming where buds will be, with white pistils sticking straight out

Did you know you can figure out if a plant is male or female while it’s still in the vegetative stage?
Example of flowering stretch – what to expect
Be especially aware of leaf symptoms, for example: discolored/yellow leaves, or if your plant starts rapidly losing leaves. It’s completely normal to lose a few leaves at this stage, especially leaves that aren’t getting light (which often look like they may have a nutrient deficiency and then fall off, but it’s just your plant cannibalizing the leaf since it isn’t getting any more light). That being said, overall your entire plant should still be lush and green in week 3-4 while your budlets are forming.
If they haven’t already, your plants may start to smell!
Week 4-6: Buds Start Fattening

The Dance of the Flowering Cycle

You can maximize marijuana yields by focusing on the right factors each week of the flowering stage. If you know what your cannabis should look like week-by-week, you'll also be able to quickly tell if something is going wrong!

Week 4 flowering

Regularly check your buds and leaves for fungi and diseases. Look for brown, white or black spots on the leaves. Brown leaves that grow out of the bud and discoloration on top of the buds. Touch your plants as little as possible and preferably wear surgical gloves.

  • Light cycle: 12 hours light – 12 hours darkness
  • Light color: Orange-red – HPS
  • Temperature: 70-77 degrees
  • Humidity: 50 – 60%
  • Fertilizer: 1.3 – 1.4
  • pH: 6.0

These should also be green. If the tip of a leaf is brown it indicates a nutrient surplus, and you should give the plant half the dose the next time. If whole leaves are turning brown, you could be experiencing bud rot. This won’t happen at this stage, but it can occur near the end of the harvest. So from now on you should also look at the color of the hairs and the leaves between the buds. If you are in doubt, immediately talk to one of our growing experts on the forum.

You can now see the first real buds appear. They are just tiny balls with white hairs, but they’re buds! They don’t contain any THC yet and aren’t really smokable, but they’re starting to get a nice smell. Gently squeeze one of these balls and smell your fingers after. This is very promising ;)The plant won’t grow anymore really, so you don’t need to check the height of your lamp every time. Do however maintain a perfect climate. The humidity needs to be between 50 and 60 percent, and the temperature shouldn’t rise above 77 degrees. Always make sure the plants have enough water, and take good care of them. This is a very important period, because the number of buds your plant will produce is determined right now.
Here are two links to proper flowering fertilizers you can use.
It’s really starting to look like something now! They’ve grown a lot over the weekend! You can see that the little white balls are getting bigger and are starting to grow towards each other. This can eventually amount to very big buds. If you look at the bottom of your plants, you can see all kinds of little buds starting to grow. Keep the climate and your watering at the right level.If your plants are healthy and your leaves are nice and green, you can increase the EC to 1.4. If this is not the case, follow the step-by-step plan to see what’s wrong with your plants and approach a growing expert on our forum to help you.
Color of the leaves between the buds
This is really starting to look like a bud. You can see many white hairs grow from the little buds and probably also some leaves. These leaves are important, because they can tell you a lot about the health of your buds. If you look closely at those little leaves that grow out of your buds, you can see there’s already some resin on them. The leaves around the buds are perfect to make hash or weed butter out of later.I already taught you how to check if your plant is healthy. But now that the plant has buds, there are some more factors you have to take into account;

After two weeks with 12 hours of light and 12 hours of darkness, the plant stops growing and every bud starts to develop its first flowers. Almost no leaves are being made anymore and the roots also don’t grow as quickly. All pistils are white and increase very rapidly. The little flowers are now just small white balls, spread along the branches. And the smell starts to really develop at this point. I always find this stage very exciting.

Take a look at our pictures of cannabis flowering during week 3 and 4. You will see small budlets will start to appear during this flowering stage.