I need a more precise guideline for watering than "feel the weight, duderino".

Hi guys,

I am a first time grower and I am still lost about when it's the right time to water. So far, what I have found about this matter in this and other places have been 2 main methods.
I am going to explain how thes methods are performed and why they do not work for me and why they are definitely not working for a lot of other newbies, since forums are infested with overwatering problems and people going mad about the same issue over and over again.

1. First commonly accepted method: "Feel the weight of the pot, dude, when the pot is light you need to water, man!". Could this be any more inaccurate? (use Chandler's tone).
What if I'm Schwarzenegger? A pickup truck might be heavy, but not a pot, no matter the size of it (the poor guy would always overwater his babies because the friggin' pots are always light for him!). For more information, see picture attached.
Jokes aside, this is my first grow, as it is to many other newbies, so this concept of lightness is very vague since I cannot remember how light they were at the beginning, specially since I had to refill the pots with more soil over the wet soil due to tall stems, which happens to a lot of people. So yes, very inaccurate method.

2. Second commonly accepted method: "Stick your finger in the soil. If the first 3 inches are dry, it's time to water". (Hmmm, sticking fingers, checking wetness... you know how to start me up, baby!).
This method is not only inaccurate, but it's also definitely risky. What if we are talking about seedlings in pots of 4 inches high? Or a mother in a pot 25 inches high? Is that 3 inches appliable in both cases? I don't think so, in the first case you might underwater your seedling and in the second case you would definitely drown your mother (and you don't wanna drown your mum, right?).


If you are going to tell me "hey, man, you gain this knowledge with experience" or "you need to listen to your plants". My reply would be "Just admit you have no concrete, accurate response". It happens to me even at my job and I am mature enough to say when I don't know why I'm doing what I'm doing. People need to change their mindsets and accept that there must be an accurate method of measuring when the plant needs water and look together for an exact method that works for newbies and experienced growers. Besides, I have invested around $550 ($100 in seeds) and I do not want them to go down the drain.

In order to try and change this paradigm of "feel the vibe", I am going to introduce some questions that might make you wonder why you use one of those methods without asking yourself if it's accurate and, ultimately, if it's the optimal thing to do to your beloved girls.

1. Why do we have an optimal range of temperature for growing marijuana? I think it's 71.6-75.2 ºF (22-24 ºC).
2. Why do we have an optimal range of relative humidity for growing marijuana? I think I saw in Jorge Cervantes, Ultimate Grow I it's 60-65% for seedlings and vegging and 50% for flowering.
And this goes on for lumen/sq. meter, air flow/sq. meter and for almost any other measurable factor except for the main one, the water, for Pot's sake!

So basically, what I would like to have is a method like one of these two. Do not mind the numbers I write, since I don't know a thing about it. I'm just showing some examples so you get the idea.

Possible method 1
: Watering is due when 2/3 (or a percentage, as in 66%) of the soil is dry. This would be easy to follow by sticking your finger in the wet, warm soil (I'm starting to like this growing thing). Although this is not totally accurate, because my finger nerves calculate the temperature and humindity levels by comparison against my own skin temperature and humidity levels. That's why you have to dry your hands before measuring the humidity this way. So, although this is more accurate than the commonly accepted methods, I actually prefer Possible method 2.

Possible method 2: Watering is due when the humidity in the center of the soil it's 30%. There are humidity/pH meters for soil (I actually have one), so this would be the preferred method, since it is really accurate. More accurate than my fingers anyways, which are no longer the same after I dated that French exchange student...

So this is it.

Now what I would like you to do is:
1. If you are a pro, just give your thoughts about it and if you haven't yet, you could start developing one of these methods (preferably Possible method 2) on your next grow. With your experience, you could actually measure the humidity levels in your pots when you decide it's time to water in every stage (seedlings, vegging and flowering) in case they differ.
2. If you are not a pro, but you know one or several ones, tell them to come over here and work with us on a permanent solution to this problem.

I hope you all liked it.

Peace, love, health and fun for all of you.
 

Attachments

tip top toker

Well-Known Member
More precise? OK, weight the pot on your bathroom scales. Noone seems to have issue with this than you. A dry pot is a dry pot, a wet pot is a wet pot, there is a very noticeable difference.

I'll just say mountain out of a molehill instead of reading to the end. Working out when to water is not complicated enough to warrant the length of this thread. Sorry.

There is a reason these are the methods suggested, they work just fine.
 

Grumpy'

Active Member
To many numbers, to much thought. All plants have an ideal temp and humidity level that they prefer to grow at, but it doesn't come down to exact numbers. Even temps can be manipulated with the addition of co2. It's a very easy plant to grow, and the more complicated it is made, the tougher it will be. As for the pot weight method of watering, it doesn't matter on your strength. Pick it up dry, pick it up after watering. Easy peasy. Been growing off and on for 20 years, the last 5 years steadily, and 1 year indoors. Indoors you have to monitor a little more, but it's still just a plant after all, and will grow better when certain conditions are to it's liking. Again, just round about temps, humidity etc etc.
 
There is a reason these are the methods suggested, they work just fine.
They work just fine? Don't make me laugh, man. There are hundres of threads only in this forum with people that can't measure when to water their plants, so don't tell me those methods work just fine, cause I have proof they do not.

And there is a reason why growers all over the world have a problem with this. You are like the Inquisition was to Galileo. Remember, if you are not part of the solution, you are part of the problem.

Also, you had a problem when reading the post, but you had no problem to spend time saying what has been said over and over again. Is that smart?

Do me a favour and read the whole thread before coming here to troll. Maybe you will learn something when looking to stuff through other people's eyes (newbies could be right too, you know?).

And if you are too "kewl" to read the thread, keep being cool and go away.

Thanks.
 

stonerman

Well-Known Member
Ive seen ph pens that have built in moisture meters in them. You stick them in the soil and it will tell you the ph and when to water. Simple as that.
 

cowboylogic

Well-Known Member
Your concrete answer comes down to experience............or the weight method. Combine the 2 and you will LEARN how to water your plants.
 
Ive seen ph pens that have built in moisture meters in them. You stick them in the soil and it will tell you the ph and when to water. Simple as that.
I know it's a long thread, but why bother in answering something that might have been said in the thread? If you are wondering, yes, I did talk about pH/humidity levels in the initial post...


  • Possible method 2: Watering is due when the humidity in the center of the soil it's 30%. There are humidity/pH meters for soil (I actually have one), so this would be the preferred method, since it is really accurate. More accurate than my fingers anyways, which are no longer the same after I dated that French exchange student...​


 
Your concrete answer comes down to experience............or the weight method. Combine the 2 and you will LEARN how to water your plants.
"
  • f you are going to tell me "hey, man, you gain this knowledge with experience" or "you need to listen to your plants". My reply would be "Just admit you have no concrete, accurate response". It happens to me even at my job and I am mature enough to say when I don't know why I'm doing what I'm doing. People need to change their mindsets and accept that there must be an accurate method of measuring when the plant needs water and look together for an exact method that works for newbies and experienced growers. Besides, I have invested around $550 ($100 in seeds) and I do not want them to go down the drain.​



If you had read the thread...
 

Howard Stern

Well-Known Member
If you can't figure out when to water your fucking plants then you should stop growing! I had the same question when I first started and the people on RIU helped me out quite a bit! But you have to listen, and if you don't like the advice then create your own watering system and share it with all the other people having the same problem as you! Fix your problem yourself if you don't like the advice given here by experianced growers! " Not saying that I am experianced "
 

tip top toker

Well-Known Member
Exactly, noone is trying to change the system for the simple reason noone but yourself feels a need to do so ;) notice the resounding theme to all of these peoples responses? Noone agree's that there is need for some super accurate scientific method of finding when to water.

It is a plant, it rains when it likes to rain, why do you have this notion that it has to be done perfectly? Cannabis is piss easy to grow. You're gonna have a fun time when it comes to harvest time if you can't even work out when to water ;)
 

cowboylogic

Well-Known Member
"
  • f you are going to tell me "hey, man, you gain this knowledge with experience" or "you need to listen to your plants". My reply would be "Just admit you have no concrete, accurate response". It happens to me even at my job and I am mature enough to say when I don't know why I'm doing what I'm doing. People need to change their mindsets and accept that there must be an accurate method of measuring when the plant needs water and look together for an exact method that works for newbies and experienced growers. Besides, I have invested around $550 ($100 in seeds) and I do not want them to go down the drain.​


Its not our fault your unwilling to accept it is just that easy.
 
To many numbers, to much thought. All plants have an ideal temp and humidity level that they prefer to grow at, but it doesn't come down to exact numbers. Even temps can be manipulated with the addition of co2. It's a very easy plant to grow, and the more complicated it is made, the tougher it will be. As for the pot weight method of watering, it doesn't matter on your strength. Pick it up dry, pick it up after watering. Easy peasy. Been growing off and on for 20 years, the last 5 years steadily, and 1 year indoors. Indoors you have to monitor a little more, but it's still just a plant after all, and will grow better when certain conditions are to it's liking. Again, just round about temps, humidity etc etc.
Growing is a science involving many parameters. I don't know why you can have answers for temperature, relative humidity, airflow and not have it for soil humidity, even when there are soil humidity meters. As I said in my thread, you old growers need to change your paradigm and start giving some better answers to newbies. Otherwise, it's like when science started and people thought that the earth was flat and went on withouth much thinking. There's a perfectly normal and good explanation about soil humidity. If you don't know it, that's fine, you do fine with your method. But don't tell me I shouldn't try to get better and precise, like it's a bad thing. Cause it is not. Advancements in science are achieved by people who questioned the stablished paradigmas and who are very thorough in their fields. I don't intend to be the person leading any advancement, I am just trying my plants not to have droopy leaves. And if on my way I can help thousands of other newbies in my own situation with some method they can grasp to and never be wrong, that is fine by me. That's what numbers and thought do for you. They help you not to make mistakes.
 

silusbotwin

Well-Known Member
OP, you're beginning to act like a pompous child. People trying to help you, and you return the favor by verbally attacking them. TBH, you are the only person I have seen that has a problem figuring out how to water a fucking plant. It isn't rocket science. It's a plant. Calm down, take your panties out of your ass, and show some respect to those trying to contribute. Had your responses to people been a bit more polite, you would illicit a relevant response from me.
 

cowboylogic

Well-Known Member
Guess you better consider this also then if you want to be scientific. Different strains and even different phenos within a strain can demand very different soil moisture levels. And these levels can even change during stage of growth. That coud be why there is no such thing as a concrete way too water...
 

VanishingToaster

Active Member
get an auto-drip system if ur struggling. but it is something that comes with practise and experience. you will need different amounts at different stages, pay attention to ur plants. try turning your pots instead of lifting them, i find that easier.
 

Beansly

RIU Bulldog
Exactly what we need...another newb with an attitude...
That's not gonna make you any friends pal.
And sorry, but if you can't tell when to water bt lifting a pot then you haven't been growing long enough to have an attitude.
 
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