Slow growth - First time grower, please help!

I'm a first time grower and i bought 3 Northen Light x Big Bud seeds from World of Seeds, they are now about 3-4 weeks old and are very short.
Some also got a few brown spots on them and the bottom leafs on some are brown and are hanging down.
i water them a few times each week.

the PH of the soil is about 6-7.5 when i planted them.
i put them out every day when its sun and the temeprature is usualy about 15-25 and i dont grow inside, only outside, naturaly


here is a video with pictures so you can see the problem:

http://www.youtube.com/watch?v=pyz8LgJY70E




Thank you very much!

do you not have perlite in your mix its most likely cant get any oxygen

No i dont have that, i have some small rocks in the bottom, what do i do to give them oxygen?

Rabies79 said:

No i dont have that, i have some small rocks in the bottom, what do i do to give them oxygen?

Click to expand...

You will need a perlite mix to add to the soil.

I'd do a 60% whatever you're using and 40% perlite.

Try less water..they will tell you when they are thirsty. Drying out the soil properly will allow more air to get to the roots.

Also...I've been told by many experienced growers that most people use too much perlite. It is best used sparingly (5-10% by volume). Try just watering less first...

Looks like your oxygen to water ratio is off, lack of air by the looks of it, remake your mix with more perlite and pack it less so there are air pockets for your plant to breath also suggest getting bigger pots looks like it will rootbound soon,

Bosh

Its going well considering the low vegging temps. Dont worry about the spots its nothing. Why are there broken chopsticks in the soil?

When you said the temperture were you talking about Celsius or Fahrenheit? because if you did mean Fahrenheit those temps are way to low for cannabis plants.

The brown bottom leaf is nothing to worry about. It is a "seed leaf" that should have fallen off by now.

The plant in the video is stunted for 21-28 days in dirt. I chart the growth of all my grows and see that
my average 28-day old vegger is 24 inches tall with many more side branches than your plant. It is
difficult to diagnose from here, but I would guess part of your problem is lighting. Plants don't like to
be moved, especially twice a day. Your young plants should be getting 18-24 hours of uninterrupted light
in every 24 hour cycle. Your plants are undoubtably getting less than that and in uneven spurts, I bet.
Leave her in one place and see how she does.

BigSteve.

I bet the chopsticks are being used to support the plant.

BigSteve.