Deficiencies

We look at the 11 most common cannabis nutrient deficiencies to help you diagnose, correct and prevent them. We also have a practical symptom diagnose chart to make diagnosing easier! 

Boron deficiency in cannabis plants is a fairly rare phenomenon unless you are severely under-watering your plants. I have seen it happen a few times and this is how I diagnosed and corrected it.

Though rare, Sulphur deficiency can aggressively hurt your product. Learn how to spot and correct this uncommon issue before it decimates your yield.

Manganese deficiency in cannabis plants is rather uncommon but I have experienced it myself on one occasion in my early career. It was very tricky to diagnose but I have a few tricks to help you do it.

Copper deficiency is often missed! Learn how to spot the unique symptoms (bluish leaves, stiff texture) caused by pH problems and how to quickly diagnose and correct them.

Inter-veinal chlorosis with a pale, whitish color points to Iron deficiency. Learn how to correctly diagnose this tricky micronutrient issue and fix it immediately.

A CalMag supplement is a must for all serious cannabis growers and in this article, we take a look at how to diagnose and correct a CalMag deficiency before it destroys your product.

Feed the soil, not the plant — Let's learn how to use root stimulators to maximize cannabis nutrient intake from your fertilizer to your plant.

Want bigger buds and better defense? Silica strengthens cell walls, fights pests, and improves nutrient absorption. Learn how to use this micronutrient supplement.

Have you ever found yourself staring at your plants, puzzled by signs of wilting or discoloration even though you give them good amounts of nutrients and love? Your plants may suffer from what is known as nutrient lockout. Here's how to diagnose and correct it.

Zinc (Zn) is a vital micronutrient. Learn to spot the early signs of deficiency—like crinkled leaves and stunted growth—and fix it before your harvest is ruined.

Phosphorus is vital for big yields, but a deficiency can stop growth dead. Learn the subtle early symptoms and get the step-by-step fix to save your crop.