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Grow Q&A: Yellowing Older Leaves – High Times

Grow Q&A: Yellowing Older Leaves. Should They Be Cut Off?

  • Grow Q&A: Yellowing Older Leaves
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  • – Mark Dear Mark, It’s perfectly okay and quite effective to remove any leaves that are yellow from your plants.
  • As plants mature, the lower leaves will start to yellow as they are no longer being used to convert light into cellular growth.
  • Removing healthy leaves is not recommended because those are the “power plants” that absorb light and give the plant energy to grow.


Dear Dan, As my outdoor plants are budding, the big fan leaves are starting to yellow from the bottom of the plants. Should I cut them off? Please let me know and thanks! – Mark
 
Dear Mark,
It’s perfectly okay and quite effective to remove any leaves that are yellow from your plants. Typically, as plants mature, the lower leaves will start to yellow as they are no longer being used to convert light into cellular growth. Picking the yellow leaves off will allow more light to reach lower branches and prevent diseases and pests by removing the vulnerable places where they thrive. This is the reason why the sticky pest strips are yellow – evolution has led bugs to become attracted to the color of struggling plant growth so that they can begin their attack at a weak spot on your bushes.

@HIGH_TIMES_Mag: Grow Q&A: Yellowing Older Leaves. Should They Be Cut Off?

Dear Dan, As my outdoor plants are budding, the big fan leaves are starting to yellow from the bottom of the plants. Should I cut them off? Please let me know and thanks! – Mark

Dear Mark,

It’s perfectly okay and quite effective to remove any leaves that are yellow from your plants. Typically, as plants mature, the lower leaves will start to yellow as they are no longer being used to convert light into cellular growth. Picking the yellow leaves off will allow more light to reach lower branches and prevent diseases and pests by removing the vulnerable places where they thrive. This is the reason why the sticky pest strips are yellow – evolution has led bugs to become attracted to the color of struggling plant growth so that they can begin their attack at a weak spot on your bushes.

Removing healthy leaves is not recommended however because those are the “power plants” that absorb light and give the plant energy to grow. Some selective removal is okay but always err on the side of caution when taking off fan leaves. Remember that the natural yellowing that occurs towards the end of the cannabis life cycle are natural and a good sign that nutrients are leaching out of your plant, for cleaner burning and better tasting buds.

Have a grow question? Ask away at deardanko@hightimes.com

Grow Q&A: Yellowing Older Leaves – High Times

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