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Issue #88 - Sunday, December 22, 2013 Dear Fellow Grower, In today's issue... - What do you do when your plant is hit by root problems?
- Take a look at a beautiful clone roots trophy pic by one of our readers.
- Get yourself a little something
special!
- Learn about a digital growing resource that will teach you to become the master of your garden (for advanced growers only!)
Happy Growing!
Nebula Haze & Sirius Fourside (founders of
GrowWeedEasy.com)
"The roots
of education are bitter, but the fruit is sweet." ~Aristotle
Root Problems
by Nebula Haze
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Cannabis Plants With Root Problems Show Many Symptoms - Cannabis may appear overwatered or
droopy
- Curling or cupping of leaves
- Wilting - either individual stems wilt or the whole plant may wilt
- Leaf yellowing
- Brown spots / Burnt spots
- Other strange nutrient problems
- Brown or slimy roots
- Smelly runoff water (smells rotting or musty)
- Leaves may start dying and falling off rapidly
- Plants drink much less water than usual
The cannabis plant below did not have any drainage holes (water could not drain out the bottom of the
pot). Notice the strange twisting of some of the leaves. When roots are left in stagnant water for too long, they cannt get enough oxygen and tend to develop root problems. This particular type of cupping of the leaves below is common among cannabis plants with root problems.
In this case, the plant had no drainage from the bottom of the solo cup, so water was just pooling at the bottom for the roots to sit in. Once the grower poked holes in the bottom of the cup, this problems went away (the cupped leaves didn't recover, but new leaves started growing in happy and healthy). Sometimes leaves will tend to cup or curl down due to root problems, like the plant above, but sometimes the curl upwards too, like the poor plant below
(this was caused by poor drainage and plant was overwatered, leading to a pretty severe case of root problems): This next plant was also overwatered and had no drainage. Notice how dark the soil is and the green algae growing all along the top of the soil - these are more signs the plant has been overwatered for
quite a while. You should never water your plant when the soil is still wet at the top, and if you notice lots of algae growing on top of your soil, it may be a sign that you're overwatering on a regular basis. The grower of the next plant was going on vacation for a few days, so they chose to overwater their plant in hopes it would be enough water until they got back. While they were gone, they had a huge heat
wave. So this plant was subjected to overwatering plus heat. A few days later, when the grower came back, they saw that the leaves were cuppping upwards and had turned lime green. The stems and veins of the leaves were turning red. You can see the soil is still dark and wet because the plant stopped drinking after developing root problems. The plants below developed root rot in a hydroponic setup. This is usually triggered when the roots can't get enough oxygen, usually due to high temps or poor oxidation of the water. Notice the strange burnt appears on some of the bottom leaves. They turned almost white. The whole plant was drooping, especially towards the bottom. The roots turned brown (pictures below). Root rot! No wonder the leaves were having so much trouble on top. Possible Triggers For Root Problems - Heat - cannabis is more likely to have root problems at higher temperatures
- Over-watering potted plants - too much watering tends to cause root problems
- Bad or no drainage - roots will "drown" when they're sitting in stagnant water (it's recommended that you provide cannabis plants with enough water to get at least 20% extra runoff water every time - if you're not getting 20% runoff out the bottom when watering it means you need to either improve drainage or give more water each
time)
- Hydroponics - Root problems are caused when there's not enough oxygen in the water, usually caused because there isn't enough bubbles and/or aeration
Certain strains are more prone to root problems than others, but good root practices will allow every plant to thrive! How to Treat Root Problems: Step 1: Identify what may have caused the root problem (refer to list of possible triggers above) Step 2: Address this underlying issue
- Happy temps - Make sure your grow area maintains a comfortable room temperature during the day, and is a few degrees cooler at night
- Only water your plants when they need it. How often should I water my potted cannabis plants?
- Make sure potted plants have plenty
of drainage, and their must be drainage holes at the bottom. If soil or growing medium holds a lot of water, consider mixing in 1/3 to 1/2 extra perlite to "loosen things up" and improve drainage at the roots.
- Brown, smelly roots? Learn how to get rid of root rot
Step 3: (Optional) Provide your plant with a beneficial bacteria like Aquashield to help roots recover quickly. Aquashield will help fight root rot by creating a colony of good bacteria to outcompete the root rot. Don't Use Hydrogen Peroxide (H2O2) for root problems! H2O2 is temporarily effective at best when it comes to root problems. By it's nature, even commercial grade H2O2 will be completely gone from a water reservoir after about 24 hours as it reacts with the water to form oxygen (decomposes) until the H2O2 is completely gone. If H2O2 is added to a water source, it kills most of the bacteria in the water, including any good bacteria, but will not usually be able to kill all bacteria, so some bad bacteria will still be left to repopulate. Because of it's nature, hydrogen peroxide does absolutely nothing to fix the underlying issue that causes root problems, and it kills any postive bacteria in your soil or water so sometimes it can actually make things worse. I personally recommend using a supplement called Aquashield for root problems because I've used it successfully to get rid of a terrible case of Root Rot Aquashield is also much cheaper than most other similar root treatments and is proven to work well at supporting root
health in cannabis. Take a look at our root rot page to see pictures of how Aquashield was able to completely cure a terrible case of root rot. Other examples of beneficial root supplements include Piranha, VooDoo Juice, Great White (Great White has great reviews, yet is obscenely expensive), Subculture B, Rooters, and Plant Savers. Most of these can be used with both hydro and soil grows. I personally
recommend Aquashield because I've used it successfully to treat Root Rot (and it's also very affordably priced, you can use it throughout your grow without breaking the bank). One important thing to note is that after you treat
the cause of root problems, the old damaged leaves will never recover! With recovery, you're looking for the problem to stop spreading, and for new leaves to be growing in green and healthy.
| Who Runs This Newsletter?
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Nebula Haze:Marijuana has literally
saved my life, and I'm dedicated to showing you how easy it can be to grow.
I have made it my mission to build growing resources to help both new and advanced growers get bigger, better yields with less time and money.
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Sirius Fourside:Sirius Fourside is a hobbyist grower who has gained the bulk of his experience growing in water as a medium(deep water culture, bubbleponics). "Growing cannabis is a relaxing hobby in and of itself, but it also saves you money and keeps you from having to deal with shady characters. Cannabis is much easier to grow than people give it credit for, and growing in water doesn't increase the difficulty much, if any. But whether you want to grow in water, perlite, or a different medium, we'll show you how easy it can be!"
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Enough of all the pics with sad or unhappy roots - before you go, here's a picture of healthy roots growing from a new clone (just 10 days old)! |
Taken by awesome grower Merrie Jayne
Get Yourself a Little Something!
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- Handy digital pocket scale with backlit display
- Weighs up to 1000 grams in 0.1 gram increments
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This scale comes bundled with two expansion trays including an extra large one with deep sides for weighing loose items
- Auto-Off after 60 seconds of non-use; Integrated Overload Protection
- 10 Year Limited Warranty; Powered by two AAA batteries (included)
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The Knowledgeable Grower Gets An Amazing Harvest Every Time
- The Ignorant Grower Gets Sickly Plants & Low Yields
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-Nebula
| Online Cannabis Plant Diagnosis Tool
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We recently released an interactive new feature for our GrowWeedEasy.com readers!
Many of you have written in speaking to the difficulty of figure out what's wrong with your sick plants...
So we have put together
a virtual Plant Diagnosis Tool to help you figure out what's wrong so you can stop worrying and get back to growing!
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