COCO COIR My first grow in 4x4 AC Infinity grow tent, EVO6 - Coco/Perlite - GG#4 & Black Widow

[Wheels1974]

It's hard to say how often MJ plants should be watered because each plant is different and the requirements of various grow mediums is different. Growing in coco, when transplanting sprouts I like to saturate the medium and then go from there. When I say saturate I mean that. Get the medium wet. If that takes 3 quarts or 3 gallons, whatever it is, that's what I do. I want to see runoff in the pot tray/riser. With saturated grow medium at that stage of growth it usually takes about 2-4 days for the pots to dry out enough to water again. As the plants grow of course the frequency of watering will increase. Some say to water with a runoff of about 10%. I like to water until I can see the runoff dripping into the pan and then stop. Try it with your GG1. Give it a gallon and see what you get for runoff. It won't hurt your plant. As your plants grow you will need to feed them more often but you most likely won't be able to put them on a set feed schedule with a set amount of water for each time they are watered. The two factors that will affect how often you water your plants the most are temperature and humidity.

@golfnrl

Your information is extremely appreciated, mate. What you’ve written and the way you’ve explained it is all I’ll need to give it a try.

I think my gut feeling was right, I strongly believe I’ve been underwatering them. I just checked them now but didn't open the tent and they all look awesome. Even GG1, after that 2L feed, has perfect looking leaves. I couldn't get any great shots as I didn't open the tent.

On her next feed, I’m going to follow exactly what you suggested and continue feeding her until I see the first signs of runoff from the bottom of the pot. I’ll then test the EC and pH of the runoff, record the results, and get back to you with what I find. On Thursday I raised her feed from (1.1 EC) to (1.3 EC) and gave her that 2 litres.

Would you suggest keep her 2nd feed the same as her previous week with an EC of 1.3 or increase it to 1.4 or more?

I also need to start defoliation but bloody hell thats quite intimidating, I know I'll start from the lowet part of the tree which is getting quite crazy.

Thanks again, mate. I really appreciate you taking the time to explain it all.

 

[growingisfun]

Looking good!

 

[golfnrl]

Would you suggest keep her 2nd feed the same as her previous week with an EC of 1.3 or increase it to 1.4 or more?

I'm happy to try and help. I'd keep the EC the same for the 2nd feed and keep watching the plant. Raise it slowly until you reach your target EC. I like 1.7 max for veg. A little higher for bloom but each cultivar is different. If you start to see burnt tips, back off the strength of your nutrient solution.

And don't stress too much about defoliating. I'm not the best at it but I haven't killed any plants doing it either. You'll be fine. Don't be shy about taking foliage from the lower parts of your plant, especially those areas that don't get enough light. GWE has lots of really good tutorials about defoliation.

 

[Wheels1974]

I'm happy to try and help. I'd keep the EC the same for the 2nd feed and keep watching the plant. Raise it slowly until you reach your target EC. I like 1.7 max for veg. A little higher for bloom but each cultivar is different. If you start to see burnt tips, back off the strength of your nutrient solution.

And don't stress too much about defoliating. I'm not the best at it but I haven't killed any plants doing it either. You'll be fine. Don't be shy about taking foliage from the lower parts of your plant, especially those areas that don't get enough light. GWE has lots of really good tutorials about defoliation.

@golfred
Plants are all looking amazing, BW2 & GG1 are looking awesome.

I did what you sugested Re: GG1 and after 2L of feed with an EC of 1.3 & pH of 5.8 I had enough runoff which freaked me out EC was as high as my EC would read at 3.8 and pH of 7.3 so I continued watering to 4.5L and got at least 400ml runnoff and nothing changed so I stopped watering. Other then that all plants are looking amazing.

What to do regarding EC & pH runoff?

 

[Allotrope1000]

I sorta follow @golfnrl 's watering program.In 50/50 coco/perlite, 7 gallon fabric pots. (No autopots.)
- water daily until saucer under riser gets a couples ounces of runoff.
- lift pots to judge weight, which indicates those needing extra water.
- keep doing until harvest, of course switching veg to flower nutrients then flush.
It is virtually impossible to overwater in coco.