Guides to Fixing Cannabis Plant Deficiencies and Problems

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Welcome to Percys Grow Rooms Guides to Fixing Cannabis Plant Deficiencies

Here you will find everything you need to help you fix a cannabis plant problem. From snapping a branch during LST, to drying cannabis losing its smell.

Plant Problems

No matter what your problem is, the key to fixing it is a correct diagnosis. You’re not alone!

Ask for help in our forum, no matter what the issue, you will find a grower who has experienced it before who can help!

Don’t rush, take your time! Make sure you know what the problems is, and then begin to treat it.

Whether you have a hungry plant, are bugs have invaded your grow room, you will find a grow guide here to help you fix the problem.

The important thing to remember when treating a sick cannabis plant, is proper diagnosis. If you need help diagnosing what is wrong with your plants, then enter a post into the infirmary section of the forum.


Here is a list of common cannabis plant deficiencies. Each picture here is downloadable, and printable for future reference.
Click on any image to go to a full guide on diagnosing and treating a cannabis plant deficiency.

Excess and Toxicity

When you overfeed a cannabis plant, it can suffer with excess and toxicity. It is always better to under feed a cannabis plant, than over feed one.
If you think your plants are suffering with nutrient excess, then here are some guides to help you fix the problem, and prevent it from happening again

Cannabis Plant Care
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Cannabis Plant Care

Welcome to the cannabis plant infirmary. In this section of the forum, you will find guides on fixing cannabis plant deficiencies, killing bugs, and find general diagnosis of cannabis plant problems. If you have a sick cannabis plant, post a picture of your plant, with some information about the grow in this section. We can help you get your plant back on the right track.

Cannabis Plant Care
Last Post 
2 weeks ago
By percysgrowroom, Apr 04, 19 
  Diagnosis Section
3 months ago

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Common Causes of Plant Problems

Identifying and Treating Bugs on Cannabis Plants

There are many bugs that will try to eat your cannabis plant. The key to treating any bug infestation is correct diagnosis and treatment.
Clean the grow area, clean the plants, and find out how the bugs got to them. Then find out how to treat the bugs here

Pesticides for Killing Bugs on a Cannabis Plant

If you give the plant the wrong treatment, it may make the problems worse.

Plant Deficiencies


Plant Excess


Guides for Fixing Cannabis Plant Deficiencies and Problems

Common Cannabis Plant Problems and Solutions
Fix a Cannabis Plant Problem, in 7 Steps
Diagnose a Cannabis Plant Problem
Ec and Ph Fluctuations in Hydroponics
Micro and Macro Nutrients
Keeping Healthy Cannabis Plant Roots
Symptoms of Over watering Cannabis Plants

Cannabis Plant Problems
in Flower

Diagnosing and Treating Bud Rot and Mould
Controlling the Stretch

For more Guides Check here:

Cannabis Plant Problems Category
Bugs and Pests Section

Every cannabis grow guide in our plant problems section, is written by experienced growers and members of our cannabis growers forum. If you need advice, or have any questions, sign up, we are always happy to help!

Cannabis Growers Forum
Fix a Plant Problem

In this section of the forum, we have a Plant Doctor!

Fill out the template and post it into a new topic. The more info you can provide us with, the better chance you have of a speedy, and accurate diagnosis.