Leafs dying and edges yellowing. :(

Hey guys can you tell me what is wrong with my plant :$ ?


I think I might have burned the plants or maybee it's heat related? Please help me I've already posted a threat but I can't seem to get any help

how old are they? How old were they when you started feeding them? what did you feed them? What what the dosage? (1/4 strenght? 1/2? full strength?) Whats your ph? Whats your soil? etc... we need info

They are about a month old. I fed them about 1 week ago with urea because of yellow leaves (which I thought was Nitrogen defficiency.) When I saw that it didn't work I used a banal fertilizer which said it had high Nitrogen number as well as potassium and sulfate, and other small doses of other elements. It looked pretty good. I used what I think was a dosage it's a system where you tip it over and only a certain amount comes out, and then you have to put it back to it's original position and tip it again, kind of like Tobasco sauce bottles. Lol. I don't have a Ph meter and I don't know where to find one ( I live in france, and I really can't afford an electronic one in my grow shop). I'm using a soil made for gardening with perlite which was recommanded to me by my grow shop keeper who I think like 99% sure knew what I wanted it for.
If unfortunetly don't have the bag of soil any more but my plants grew very rapidly in this soil until the N defficiency appeared. If you burn your plants should you flush or leave it? They really don't seem to be doing better in fact there is more yellow around the serated parts of the 3 fingered and 5 fingered leaves.

flush it if you have overfeed her and it sounds like you have. if you don't have a pH meter try and old method. go get a purple cabbage and take the juice from and that can be used as a pH meter you can always look online for directions but is pretty simple to use. But since you have a grow shop around they usally have cheap meters.

Ok I'll flush them. Thanks. I'll respond if they started doing better. Also one of them has leaves that have started to curl up. (They had no light for 24 hours, because our electricity grid broke, and I couldn't even give them natural light because of my sister). Is this normal? Thanks.

Get some perlite in when you repot them , your roots need to breath , also do as they said . Youve started giving nutes too early , i only give my plants one shot @1/4 strenth @5 weeks of veg then swich to 12/12 a week later . Then feed Bio bloom , superthrive , seeweed extract and molasses .
When you flush get your run off ph @6.5 and tou should be ok

Irishstaff, I'm growing White Haze, a sativa-indica and it takes almost 3 months to go into flowering... :/

You can flower from seed so dont know where /who youve heard that from .

Well they have a potential in the vegging state of 1 meter 60 and then another 20-60 cm in flowering. So it does take some time. If you want good loot I guess though.