30 - 40 cm plants in 15 litre pots how much water ?

ok guys ive got this far but still not convinced i got my watering schedule right as im still seeing slow results plants are 30 to 40 cm in 15 litre pots temp 24c and under 600w hps how much water would u use in these conditions and how often

i would at first water with about 3 l each and then leave for a whole week then i would be giving about 2l every 2 days until they get bigger then i would water 3l every 2 days

wow so looks like i been doing sort of ok i been using 1.5l every 3 so will probs try doing it a day ahead of normal felt like i was probs overdoing it moreso but maybe slower due to drying out quicker i did notice them getting light but thought maybe an extra day so i wasnt overdoing it

Assuming your in coco or soil or something like. Water until you have plenty of run off on the bottom. If you started them in those 15ltr then that may be why they are slow going, you should start smaller and pot up. I use 600s, I start from clone in tiny cup size square pots, when they are really well rooted and grown a bit I pot up to 6.5 ltr. Then again a few weeks before I flower I pot up to 15ltr. Now I'm not saying that's a perfect system but if you start in large pots and the roots arnt drinking enough or root system is too small then they could easily end up rotting because they are soggy for ever. If your roots are good they should be pretty white. You could upturn a pot and carefully lift out and see just how much the roots are around the edges and bottom. If the whole thing falls apart then your probably jumping the gun a bit with those big pots. If that's the case Pot down carefully.
The reason you want to water until you have run off is to ensure that the whole pot is well watered. If you underwater the roots at the bottom can die off, they are not getting water and the corresponding part of the plant could die off with it. Not a massive problem in veg but if that happens in full flower with chunky buds your likely gona end up with bud rott because parts have died. That will spread quickly.
I hope all that made some sense!
Good luck
C.W
Edit I may have been a bit quick writing all that, I think the main point for you if they are drinking well and its going dry is make sure you have good run off. I use about 3ltr in veg, about 4ltr in flower unless they are huge!

yea i hear what ur saying mate i did start in small pots but swapped to 15litre straight from them only had about a week in them little ones did read after about pot stages gonna try that next time round been using 3 litres of water and getting a good run off but not even half a litre so id say thats about perfect then thanks man also took a visit to my local grow shop yesterday that explained it pretty much as u did but showed me using the actual containers and the space i was using trying 17 litre containers next gonna devise a system of weeks and pot sizes could be a good way to go take care of the roots the rest happens itsself i guess

If your in soil, do not water until you have lots of run off, anyone that tells you to, doesn't really know what they are doing. You should have minimal run off.

Im using 18l pots,i water/feed when the pots start to feel a bit lighter.about every 3-4 days. i agree with kiwipaulie you dont need all that run off unless you are in your last two week and flushing your plants.ive noticed every strain and grow set up is different.just takes a little getting used to.good luck

dazzyballz said:

Im using 18l pots,i water/feed when the pots start to feel a bit lighter.about every 3-4 days. i agree with kiwipaulie you dont need all that run off unless you are in your last two week and flushing your plants.ive noticed every strain and grow set up is different.just takes a little getting used to.good luck

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I would never flush in soil. Just feed it plain water as normal. Flushing in soil just opens up more fertilisers within the soil.

Ive always flushed my plants in soil and so does every1 i know with food crops not just ganja. the worst thing ever is looking after,drying,curing a crop then it tastes like god awful fertalizer.bad head material.ive never overwatered and ive flushed for a full day on/off in the shower.the plants are that big by then they take it no problem and thats with every strain ive done.weird you say you dont!!!

kiwipaulie said:

I would never flush in soil. Just feed it plain water as normal. Flushing in soil just opens up more fertilisers within the soil.

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dazzyballz said:

Ive always flushed my plants in soil and so does every1 i know with food crops not just ganja. the worst thing ever is looking after,drying,curing a crop then it tastes like god awful fertalizer.bad head material.ive never overwatered and ive flushed for a full day on/off in the shower.the plants are that big by then they take it no problem and thats with every strain ive done.weird you say you dont!!!

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I never seen a farmer flushing his fields of whatever fruits, vegetables, or grains that he grows.......or are you talking rice fields

True they feed just water for a few weeks at harvest which i do,but i also flush.every single grow book/vid tells you to?look at every greenhse seed vid.i do it to make sure theres no nute at all left in my plants so the smoke is smooth(its always wicked taste).its always worked so i always do it.i will carry on doing it aswel.

ISK said:

I never seen a farmer flushing his fields of whatever fruits, vegetables, or grains that he grows.......or are you talking rice fields

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Nah neither lol I've never flushed my vegie gardens. The thought that farmers do is utter bullshit

I bet your weed tastes shit

Nope. Its tastes awesome.

No one used to flush and then one day the internet came along and so many bullshit ideas started coming out

And having spent years dealing with commercial orchards and other produce providers, not one ever flushed.

Im not a commercial farmer with acres.ive ten plants indoor to look after and a raised garden and have always been told to flush at least once to get rid of the last of the nutrient of food or weed..ive always been told to do that you know im quite surprised you stongly disagree.it doesnt seem to ever have harmed the plants i thought i was doing it propely.

I think it was the old red eye magazine that told you to flush because of all the shit gear in the u.k.that was in 2000.ive done it in my pot plant garden since then.i hope i havent been fuking them all up.

Why do Most Hydro companys sell a "final flush" product?.anyone know whats the point of them?

Hydro is quite different to soil and its just another product to sell.

Most soils have ferts in them. Flushing them just activates more of them.

I think Mandela seeds have a good write up on their website for soil. I recommend you check it out.

Sorry- In hydro company i meant any that sells all grow equipment, not just hydro.theres flush for soil been on sale for years.in the canna"bible" it says to use 3 times the vol.of the pot for water to flush your plants.