Silicon Deficiency In Marijuana Plants

November 18, 2019

A silicon deficiency is extremely rare, but it can prohibit the plants from producing sturdy leaves, roots, or stems. Fungal and bacterial diseases along with insect infestations are all more common during a silicon deficiency. Photosynthesis is limited and the eventual yield is also lessened. Silicon is not, however, mobile.

Silicon is important for creating a barrier between the plant and pests or diseases. It is also vital for creating sturdy stems and branches.

Some of the ways to rid yourself of a silicon deficiency include:

  • Diatomaceous earth
  • Silica planting medium
  • Silicate salts
  • Liquid Silicon
Outdoor Cannabis Plants
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You can also try a product called Marijuana Booster which is meant to provide you with the best mix of nutrients to create the biggest buds and yields possible.

Thanks for reading and if you’re not sure what the problem is with your marijuana plants, please post a picture on the forum or email it to me. Visit my webshop for high quality marijuana seeds.


The founder of I Love Growing Marijuana, Robert Bergman, is a marijuana growing expert that enjoys sharing his knowledge with the world. He combines years of experience, ranging from small-scale grows to massive operations, with a passion for growing. His articles include tutorials on growing... [read more]


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  1. By philip ,05 Jan 2014
    i have many insects in my dirt,small and leaves are ok but i dont know about roots.when i open my box i see them walking to the dirt or fly,not to the plant only dirt.can you help me please.
  2. By Riccias ,10 Apr 2014
    fungus gnats is correct and get rid of the bastard's before they consume all of the plants that you are arduously growing .trust me you do not want these ....
  3. By Jesus ,02 Aug 2014
    My plants are big but very light-green(like in the picture of this post) could that be silicon deficiency? How do i help them? Please help.
  4. By Dt ,21 Sep 2018
    When fertilizing, adding nutrients to water to pour on soil, do you bring the mixed solution Ph down?
    1. By latewood_ILGM ,26 Sep 2018
      Dt., It depends on the PH of the solution after mixing. Some nutrients contain a buffer that allows the solution to fall into the proper range. Other nutrients do not and you may have to PH down or in the […]Read More

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