small, curled leaves + damn slow growth, can't figure this one out

[TheXFactor]

u might need more light. more nitrogen maybe

[phatsesh101]

how deep is your pot and plant hieght?
what brand of soil and what n-p-k doews it have is it slow release or one time water?
i like to let my water sit out for a day before i use it

[Elisabeth65]

how deep is your pot and plant hieght?
what brand of soil and what n-p-k doews it have is it slow release or one time water?
i like to let my water sit out for a day before i use it

The plant is about 10 inches, the pot is about 5 inches deep. I inspected the roots about a week ago, and they're not large. I'm 99% sure the roots don't touch the pot at this moment.

The bag of soil I use lists the following ingredients (miligram per litre)

NPK 14-7-15
Ca 350
Mg 180
S 110
B 0,5
Cu 1,6
Fe 62
Mn 17
Mo 1,5
Zn 3,5

I don't know if it's slow release etc, it doesn't say.

[dooobster]

Hi Elisabeth, sorry to see you're having problems.
It seems like your pH may be too low for a soil grow... 6.1 is about perfect for hydro, but very low for a soil run.
You may also have a bit of burn, as the description of the soil & nutes you're giving seems pretty hot.

Try flushing the soil out really well with some pH adjusted (7.0) plain water, letting them dry out for a couple days, and then adjust the pH of your nutrient solution up to about 6.6 or 6.7, and see what happens. You might even want to reduce the strength of the nutes to half-strength.

I think your babies will respond in a positive manner.

Best of luck!

[stinkyattic]

Your soil is totally wrogn for cannabis. You gotta run it at pH 6.7 or so. That's the problem, and it's worse from overwatering in low light conditions.
Choose a normal potting soil like promix. Unless you REALLY care about those genetics, that's a do-over- that plant may never grow properly because of the stress and stunting it has been subjected to.

Read the first link in my sig all the way through, and practice on bag seed.

[Elisabeth65]

Thanks for the great responses here, I'm gonna flush the soil completely now, and ease down a bit on fertilizing. I guess the pH will go up a bit by flushing, as my tap water here has a pH of about 7.1. I've ordered 2 additional 35W circular CFL's designed for the vegetative phase.

In about a week or so I will start germinating seeds again, and try to get a hold on some real made-for-cannabis soil. I'm also gonna post back here with the results of the flushing:thumbsup:

[stinkyattic]

Soil doesn't need to be made for cannabis, just for seedlings. Simple unfertilized potting mix is what you are looking for.
Read the link about flushing at the top of this section carefully before you proceed. Post any questions back here.

[Elisabeth65]

after flushing the soil thoroughly, my soil run-off pH has climbed to 6.8. The leaves grow much faster, and show a darker, more healthy green color. I've added a tiny portion of epsom salt since I took the last batch of photos, after advice from a friend.



As you can see from the photos, I tried to perform a FIM-pruning about a week ago. Does it seem to have been successful?

I also suspect that this is a male plant ... can anyone confirm this from looking at the photos ?

BTW, the leaves may seem to hang down, but this is due to my current light setup in which I am using 2 circular CFL's surrounding the plants (I tested this by reverting back to my old light setup for 24 hours. The leaves then stretched naturally). : ]

[dooobster]

Yep.. maleness confirmed.
Definitely, absolutely, without a doubt.
Sorry.

[stinkyattic]

That's a male but you learned a lot so he's not a loss.
Good luck on the next go-round; try starting a half dozen seeds to ensure a few healthy females to choose among.