[GWE] pH to Prevent Nutrient Problems

Published: Sun, 06/29/14

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Issue #115 - Sunday, June 29, 2014

Dear Fellow Grower,

In today's issue...

  • Learn how important pH is for preventing nutrient deficiencies!
  • Learn why there's so much controversy about Miracle-Gro!
  • This week's Trophy Pics feature an amazing Blueberry cola and a closeup of Jack Herer trichomes!

Happy Growing!

Nebula Haze & Sirius Fourside (founders of GrowWeedEasy.com)

"If you do what you've always done, you'll get what you've always gotten."

~ Tony Robbins

Intro: Why pH? Why Should Cannabis Growers Care?

PH is the measure of how "acidic" or "alkaline" (basic) something is. Measurements of pH has to do with the concentration of hydrogen in the soil. So why is pH important to cannabis growers?

Cannabis naturally likes a slightly acidic environment at the roots. Soil with a slightly acidic pH is what cannabis plants thrive on in the wild. Proper pH helps plants get access to the nutrients they need.

Proper pH Prevents Nutrient Deficiencies!

Some growers get lucky and grow cannabis successfully without having to worry about pH. Perhaps they had just the right soil, and happened to have just the right water to create the perfect pH environment for the plant roots. Many growers aren't so lucky, and while there are ways of getting around testing pH for your cannabis grow, nearly all growers will do better by paying attention to pH.

What's Are the Benefits of Maintaining pH?

By maintaining pH...

  • cannabis plants can grow faster and produce bigger yields
  • plants are less likely to suffer leaf problems or nutrient deficiencies
  • nutrients become more available to plant roots, so your plants get what they need for each stage of life
  • occasionally growers are alerted to issues before they become a problem

Maintaining the right pH at the cannabis roots helps the plant absorb nutrients.

Nutrient sources take different forms (on a chemical level) depending on the pH around them. Some forms are easier for the roots to absorb than others. When the pH is too high or too low, the plant may start showing signs of a nutrient deficiency even when the nutrients are physically there at the roots.

By maintaining the right pH at the roots, you're helping plants get access to all the nutrients all the time. While pH is important for all grows, it becomes most important for growers using liquid cannabis nutrients.

Take Me Straight to the Cannabis Root pH Charts!

As a result of the pH being too high or too low, cannabis plants may start showing signs of nutrient deficiencies even if the nutrients are available in the growing medium.

Growing in Soil? You may not need to worry about pH

In fact, growers who rely on using properly amended and/or composted soil are the least likely to be hit by nutrient deficiencies caused by pH problems. The more organic matter in the soil, generally the less the soil pH matters as far as nutrient absorption The natural process of soil breaking down helps make nutrients more available to the roots. But cannabis needs very specific nutrient requirements to get the best results.

If you want to grow cannabis without worrying about pH, you'll likely want to grow using amended, composted soil. Read about composting your own soil for growing cannabis. However when it comes to composting soil, it generally takes a bit of time, space and mixing before your soil is ready to use.

No Time to Mix Soil? Liquid Nutrients are Easy, Cheap & Effective

A lot of growers don't have the time or space to mix up their own soil, which may involve composting, understanding how micro-organisms in the soil affect nutrient absorption, maintaining a compost pile, etc. Because growing in soil can involve a lot of prep work (or for those who live in a city where there's not enough room for an organic, composted soil grow), there are hundreds of liquid nutrients which can be much more convenient for cannabis gardeners.

Liquid nutrients can be used to provide plants with everything they need at all stages of life. By following a simple nutrient schedule, growers are able to use the perfect amount of nutrients at the right time to power the growth of the plant, leaves and buds.

Whether you're growing in soil or hydroponics, you can use cannabis nutrients to make sure your plants have all nutrients needed, without having to mix up any soil yourself. Just follow the basic instructions for the nutrients, and your cannabis will thrive.

For many growers, liquid nutrients make growing cannabis more simple, straightforward and satisfying.

Learn About Liquid Nutrients for Cannabis:

http://www.growweedeasy.com/cannabis-nutrients

Who Should pH? Everyone Who Uses Liquid Nutrients

Paying attention to pH is pretty much required for any cannabis growers using liquid nutrients. Even soil growers using liquid nutrients should pay attention, though soil growers tend to get more of a buffer from all the organic matter, especially those starting with great composted soil that has been made for a plant like cannabis.

Unless you're willing to learn about soil for cannabis and mix up your own soil, there's probably no way you can get out of pH management - if you refuse to manage pH, your only option is to just try it your way to see what happens.

Some growers get lucky winging it, and if you've successfully grown a plant like tomatoes or corn, you'll probably be able to provide for your plants using what you already know.

But if you're just thinking about buying standard potting soil from the local garden store, or using soil you found around your house, you're probably going to need liquid nutrients to supplement your cannabis grow for the best results and yields. Maintaining pH is one of the best tools you have to get the most from your nutrients.

Once you get the hang of maintaining the pH, it's a breeze and will take you only seconds. And after you have your grow dialed in, you may not even need to check pH as often because you know what to expect.

What's the Best pH for Cannabis?

It's a good idea to let the pH cover a range instead of always adjusting to the exact same pH number. Some nutrients are better absorbed at slightly higher pH readings, while others are absorbed better at lower pH readings.

If your marijuana plant roots are experiencing the wrong pH, the most important thing is to react as soon as you notice, and not wait until you actually notice problems with the leaves. It can be tempting to ignore a pH problem, but you'll get the best results by acting before the problem escalates.

In the wild, cannabis prefers an acidic environment.

Soil ~ 6.0 - 7.0 pH

For soil an optimum root zone pH is between 6.0 and 7.0, with the most time spent with a pH between 6.2 - 7.0.

In a soil environment that doesn't use liquid nutrients, pH isn't as important. When using liquid nutrients in soil, you will almost always need to manage pH to get the best harvest.

Hydroponics or Soilless ~ 5.5 - 6.5 pH

For hydroponics (and soilless setups like coco coir) an optimum root zone pH is between 5.5 and 6.5.

Some soilless growing mediums with a lot of organic matter may need a slightly higher pH to thrive. For example if you heavily amended your growing medium with worm castings, you will want to aim for a pH between soil and hydroponic ranges.

For a hydroponics setup with roots in water, this pH chart will be able to guide you so you never get nutrient deficiencies from the pH being off.

With hydroponics, it's especially important to allow the pH to range slightly, as you can see above, some nutrients can only be absorbed at higher or lower pH's.

In a hydroponic setup, you will always be using liquid nutrients, so save yourself a ton of trouble by watching and adjusting the pH as needed! The pH will naturally change over time, and you only need to correct it when it starts going out of the 5.5-6.5 range.

No Need to Be Exact - Let pH Range Up & Down

The thing to remember with pH is that you don't need to be exact. What you do need is to be consistent in keeping the pH from creeping too high or too low in your plant root zone.


As long as you stick within the recommended pH ranges above, you will prevent the majority of all nutrient problems caused by too-high or too-low pH.

Tips

  • Be consistent in making sure pH stays in the range
  • You don't need to be exact, just keep an eye on things
  • Add all of your nutrients to your water first before checking and adjusting the pH. Your nutrients will affect the pH of your water so it's important they get added before making any adjustments.

Summary: What You Need to Remember About pH & Growing Cannabis

  1. Get a pH Tester - there's digital pens or a pH Control Kit.

  2. Get pH Up & pH Down - great for quickly adjusting the pH of potted or hydroponic cannabis plants

  3. If you are using liquid nutrients with your cannabis plants, pH is essential to getting the best growth and yields

  4. Know how to maintain pH, especially growers using liquid nutrients.

  5. If you are not using liquid nutrients (for example a grow with amended and/or composted soil, possibly worm teas, etc), you may not need to adjust pH, but it's still a good idea to test pH of runoff water if possible so you'll have warning if there's a problem

  6. Flush plants if you believe pH problems may be caused by providing too high levels of nutrients or supplements

  7. Let pH drift up & down as long as it stays in the right range - Soil pH should be between 6.0 - 7.0. Hydroponics pH should be between 5.5 - 6.5

  8. Add all nutrients and supplements before testing/adjusting pH. Many nutrients/supplements can change the pH of your water. Make sure to add everything to your water before you attempt to test or adjust the pH.

Who Runs This Newsletter?
Nebula Haze:

As an epilepsy patient, medical cannabis may have saved my life, and I'm dedicated to showing others how easy it is to grow their own supply of cannabis at home.

It is my mission to educate and build growing resources to help both new and advanced growers get bigger, better yields with less time and money.
Learn which seed sources are personally recommended by Nebula Haze
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!"
PSA: Never Use Miracle-Gro Nutrients to Grow Cannabis!

Say "No" to Miracle-Gro for growing cannabis!

Many of us have seen Miracle-Gro used around our homes, so we know that it works for 'regular houseplants'. Cannabis is just a tough weed, so Miracle-Gro nutrients should work great for it, too... right?

No. Not really.

The biggest problem with standard Miracle-Gro nutrients or soil is they generally use one formula for the entire plant life cycle. While these work great for vegetative plants, it does not have the right ratio of nutrients for the flowering/budding phase of the cannabis plant's life.

Standard Miracle-Gro soil & nutrients work "okay" for the first stage of cannabis life (the vegetative stage), but you will start running into problems when your plant starts flowering (making buds) unless you switch to some sort of "bloom" formula with lower levels of nitrogen and higher levels of phosphorus.

Most Important! Don't Get Original Miracle-Gro Soil!

The extended release nutrients in original Miracle-Gro soil will provide too much nitrogen for the cannabis flowering stage!

Which Nutrients Work For Growing Cannabis?

http://www.growweedeasy.com/cannabis-nutrients

Even if Miracle-Gro is good one for one stage of your plants growth, it won't be good for all of them. The ratio of nutrients a cannabis plant needs changes drastically between when your plant is a seedling and when the plant is making buds in the flowering stage. Cannabis plants need a nutrient system to accommodate for their changing nutrient needs, and the standard Miracle-Gro formula just doesn't work well.

Please, save yourself the time and frustration - get a nutrient system that's proven to work for growing cannabis! 

Learn which nutrients work great for growing cannabis
Trophy Pictures of the Week!

Pics by Oystergates

"The first pic is of a Blueberry cola toward the end of the drying process."
"The second is a super close up of a Jack Herer cola toward the end of the 12/12 cycle taken with a digital microscope on my laptop."

Submit YOUR Trophy Pics Here:

http://growweedeasy.com/submit-trophy-pics

Look Who's Talking!

Thanx for just being here. I have a disability that keeps me at home. But tech has enabled me to learn from people like yourselves!

God bless you!

-Craig

Remember, sharing is caring!

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