Organic growing advice

Hi everyone,

Id be very grateful if someone could give me advice as ive run into a bit of trouble with my ladies.
I will try to simplify the presentation to make easier for the reader.
I started an indoor organic grow 9 weeks ago.

4 seeds
Strains : 1 white widow / indica
1 hifi 4g / hybrid
2 blueberry / indica

Tent :1.2m x 1.2m x 2m high
Soil : canna terra pro.
light : kingbo 2000w led

Seedling : Week 1 - 2
1l pots / temp 24 - 27•C / RH 75 - 70%

After 2 weeks of seedling stage i then potted up to 12l ( 3 gallon ) pots to start veg.

veg : Week 2 - 4
12l ( 3 gallon ) temp 24 - 27•C / RH 70 - 65%

I continued veg for a further 2 weeks but i potted up to 30l ( 7 gallon fabric pots )

veg : Week 4 - 6
30l ( 7 gallon ) temp 24 - 27•C / RH 65 - 60%

after 6 weeks of veg i didnt use any nutrients as the plants were thriving and apparently canna terra pro has enough to last the first 5 - 6 weeks.

I then decided to start flower phase, 12 / 12 lighting

Flower : Week 1 - 2
Temp 24 - 27•C / RH 60 - 55 %




Top dressed With organic dry amendments
30ml of each....

bat guano 1.10.1
Palm tree ashes 0.1.30
Ecothrive charge 3.2.3
Bone meal 3.9.0

i watered the top dressing in with tea consisting of
500ml worm castings
2 tbsp molasses
1/4 tbsp epsom salts
Ph’d using lemon juice to 6.3ph in 5 gallon bucket.

i give each plant approx 2 1/2 gallons of water each to achieve approx 20% run off.

Flower : Week 3
Temp 23 - 26•c / RH 55 - 50%

this is where i noticed yellow leaves in middle of canopy on 2 plants. 1 of the blueberry and hifi 4g.
Do you think it could be from too many nutrients or not enough ?
Ive been trying to do some research and cant seem to get anywhere. I doubt its a nitrogen deficiency as the yellow leaves are in the middle / upper section, aswell as at the bottom.
the only thing i know that i might have contributed too was watering only once a week and letting the soil dry right out. Although, when i water them, as stated above, i give them a good soak with 2 1/2 gallons each achieving approx 20% run off.
i did water them yesterday without amendments and just ph’d water with 2 tbsp molasses and 1/2 tbsp epsom salts.
if anyone can give me any advice it would be very much appreciated I can attach pics if need be but because its under purple leds its hard to see.

Could be many things, using lemon juixe for ph down only works for a short time then it just jumps back to whatever your water was in the first place. Better off with a fish emulsion or coconut water.

U need to post pics

Thanks for getting back to me.
I will put up 2 pics but its hard to see properly.
I will post a fresh one tomorrow if these pics arent good enough

Because im growing with leds i had to take the pic through my green glasses to contrast the led.
I will take a better pic tomorrow in natural light but if you zoom into some of those leaves you’ll see the lightening.

BLUEBERRY # 1
Even though its an indica, it apparently has sativa genes and loves to stretch
Just concerned i havent got a lock out or deficiency

BLUEBERRY # 2

Grown out differently than blueberry # 1
All plants were fed the same

WHITE WIDOW
for some reason its had stunted growth and is atleast 12 inchesoff the top of blueberry #1

HIFI 4G

some leaves at bottom are curling and dying off. Maybe just lack of light ?

So sorry for all the messages and pics, just want to make sure i dont run into any trouble and if so, hoping i can resolve.
Take into account all 4 of these are from seed 9 weeks ago and im in my 3rd week of flower.
Any feedback would be amazing, thanks for your help and time

It looks to me like those leaves you're talking about are just not recieving enough light hence the yellowing. May need more light penetration or just prune them up. I wouldn't worry! U can always check your ph to be sure

Thanks for getting back to me mate.
Like i said i watered them 2 days ago just using 2 tbsp molasses and 1/2 tbsp epsom salts.
When i saw all the yellow leaves i panicked and brewed a tea consisting of
500ml worm castings
200ml bat guano 1.10.1
200ml palm tree ash 0.1.30
200ml Ecothrive charge 3.2.3
200ml Bone meal 3.9.0
2 tbsp molasses
1/2 tbsp epsom salts
Ph’d to 6.5 with lemon juice.
I brewed it with air pump for 24hrs and gave them 1 gallon each and because i watered them the other day the soil was still quite damp so i had quite a lot of run off. Do you think it would hurt if i left the plants to sit in the run off overnight if i turn the dehumidifier down to 40% so it helps remove moisture too ? Do you think the tea will be too rich ? Thats the last question i’ll ask you now, sorry to be a pain in the ass lol

Dont let them sit in the runoff you'll likely drown your roots and end up with fungus gnats. The tea should be fine. Id use less wood ash though as its alkaline. Other thwn that your plants really dont look bad at all. Also let the top inch of soil completely dry before you water the plants. Everytime

Thanks for getting back to me.
I accidentally left them in the run off trays with water about 2 inches deep in them
Only because i lost track of time and now its lights out for the girls and dont want to throw them by bringing them back into the light.
Hopefully one night wont hurt. Ive actually left the dehumidifier right by one of the vents of the tent and set the humidity to 35% rh which holds the humidity of the tent around 45 - 50% rh.
I just hope i dont drown them now but hopefully they drink the reat of the runoff overnight as it is warm in the uk at the moment and the lights out temp was 27•C

And its too late, i already mixed 200ml of palm tree ash with the tea hopefully it doesnt burn them and cause the ph to rise

Would you recommend flushing when using organics ?

Flushing is a highly debated argument. People seem to have success both ways, minus the people force feeding nitrogen in late flower lol.
Read this:

Polyuro said:

Flushing is a highly debated argument. People seem to have success both ways, minus the people force feeding nitrogen in late flower lol.
Read this:

Cannabis Flushing Research Study

In our research study, RX Green Technologies evaluated the effects of different flushing times on chemical profile, flavor, and smoke of cannabis flower.

www.rxgreentechnologies.com

Click to expand...

Pretty tough to flush an organic grow. You could try to drown it, but it probably wouldnt do much good

U have K being taken from lower leaves and transported up the stalk to the flowers. K is mobile which is good so u don’t want to prune/trim yet until your tree ash is taken up. But do trim her or you will get smaller colas and lots of larf. Looks like your soil have ph conditioners so hopefully u will be fine.

BTW your plants look really good.

Boatguy said:

Pretty tough to flush an organic grow. You could try to drown it, but it probably wouldnt do much good

Click to expand...

Agreed. Just back off nuts before dark period and chop

This is a great quote from @Renfro:
Flushing is for toilets. Period.