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Plant Biology

marijuana leaves

Marijuana leaves: Everything you need to know

16 August 202320 April 2022 by Robert Bergman

Marijuana leaves are a vital component of the plant’s biological processes. They are the main sites where photosynthesis occurs and the process where energy …

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How to increase trichome production

21 March 202527 January 2022 by Robert Bergman

Weed comes in a variety of flavors and aromas. When growing your own, it’s natural to want those tastes and smells to come out. …

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Terpenes: The Flavor Of Marijuana

21 March 20252 November 2021 by Robert Bergman

For years, researchers felt that disparate ratios of cannabinoids created marijuana’s variegated effects. Studies of modern marijuana, however, have shown that most varieties have …

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Do marijuana plants need oxygen

21 March 202525 September 2021 by Robert Bergman

Oxygen isn’t a particularly critical factor because the air is full of it. As marijuana plants photosynthesize during the day, they release oxygen as …

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Distribution Of Sugars Within A Marijuana Plant

21 March 202523 September 2021 by Robert Bergman

To grow some high quality marijuana, the plant needs to make a lot of sugars. The full grown leaves produce these sugars for the buds and …

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Marijuana plant hormones

21 March 202513 September 2021 by Robert Bergman

Although many marijuana growers don’t know much about plant hormones, the fact is that they are hugely important to any marijuana plant (or any …

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Growing Marijuana At The Cellular Level

21 March 202512 August 2021 by Robert Bergman

The different cell types vary in their function, and they all work together as a sort of cell team. Cells for the leaves, roots, …

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‘Osmosis’ Effect On Cannabis Plants

21 March 20252 August 2021 by Robert Bergman

I understand the integral role that water quality plays in cannabis cultivation, particularly when employing sophisticated methods like hydroponics. Reverse osmosis (RO) water is increasingly becoming the …

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The Structure And Function Of Stomata

24 July 202617 February 2021 by Robert Bergman

Stomata are tiny holes that cover the underside of the marijuana leaf. These stomata are microscopic and must be magnified by a lens to …

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Grow Light Distance

21 March 202525 January 2021 by Chad Westport

Light placement is an important aspect of a successful grow. Too close, and you may burn your plants. Too far, and you can cause …

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Recent Posts

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Cannabis plant with twisted, wrinkled new growth at the top showing signs of boron deficiency.

How to Fix Cannabis Boron Deficiency: Twisted New Growth, Brown Spots & Recovery

Twisted, wrinkled new leaves with dying tips and small brown… Read more

Cannabis plant with pale yellowing on the newest top leaves, an early sign of sulfur deficiency.

How to Fix Cannabis Sulfur Deficiency: Pale New Leaves & Corrective Feeding

Cannabis sulfur deficiency is uncommon, but when it shows up… Read more

Healthy cannabis plant with lush green new growth in an indoor grow.

How to Fix Cannabis Zinc Deficiency: Yellow New Growth, Small Leaves & pH

Cannabis zinc deficiency shows up as yellowing between the veins… Read more

Cannabis plant with dark, glossy green leaves showing early nitrogen toxicity in a grow tent.

How to Fix Cannabis Nitrogen Toxicity: Dark Green Claw Leaves & Overfeeding

Dark green, glossy leaves with tips curling downward mean your… Read more

Cannabis plant with brown, burnt edges on lower fan leaves showing potassium deficiency.

How to Fix Cannabis Potassium Deficiency: Brown Edges, Burnt Tips & Bud Growth

Cannabis potassium deficiency shows up as brown, crispy edges on… Read more

Cannabis fan leaf with interveinal yellowing and red-pink edges, the tell-tale sign of a molybdenum deficiency.

How to Fix Cannabis Molybdenum Deficiency: Yellowing, Red Edges & pH

Cannabis molybdenum deficiency shows up as yellowing mid-plant leaves with… Read more

Cannabis leaf with pale yellow tips and blue-grey sheen showing copper deficiency.

How to Fix Cannabis Copper Deficiency: Yellow Tips, Wilting & Trace Nutrients

Cannabis copper deficiency shows up as yellow or white leaf… Read more

Healthy cannabis plant upper canopy with deep-green new growth, viewed from above.

How to Fix Cannabis Manganese Deficiency: Spots, Yellowing & pH Lockout

Cannabis manganese deficiency shows up as yellowing between the veins… Read more

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  • Grow Guides
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