why did they trun white

i have a 3 week old plant and it has 4 sets of leaves and i put it outside during the day and it was hot and it burned the leaves and they turned white and i just put it inside and watered it and misted it but is it going to die or is it stil going to grow please help i need to know
and are they leaves going to turn green green again

can any1 help does any1 know why they turned white please help what can i do to make it better

It will live, but it can't grow in direct sunlight... Put another plant next to it to help it a little.... Is there somewhere else you can put it during the day so it will get both sun and shade? If you do that, you'll have no more problems...

Pics would help identify an exact problem, but I think you just put a small plant used to indoor lighting out in the hot sun. Are you planning on planting it outdoors? If so you need to harden it off first (give it small amounts of sun at first, giving more and more each day until it is strong enough to stay outside all the time).

If you're not going to eventually put it outside, then don't take it out at all. If you keep moving it from indoor lighting to sun and back and forth it will stress out the plant. It wants to stay in one spot and get used to it. Also if you take a plant out and bring it back in you may pick up spider mites or other bugs from outside. The more times you take it out, the greater the chances that you'll get something bad like mites.

now mate, you see lacey ,well she is a bit of a gun
take her answer and do what she says
dont post this question in 10 other threads (you know you do)

all i want to know is if if its going to come off and iznt going to live

Need a picture to better see what caused the problem and determine what might happen next.

jfa916 said:

all i want to know is if if its going to come off and iznt going to live

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i have seen this alot with our own seedlings. sounds like it got bleached white by the ultra violet light of the sun. if it was burned badly it may not make it (read most likely die). we start about 800 seedlings a season and lose about a third to extreme conditions, the sun being a regular killer. we dont have the time or the abillity to "harden" them. about another third die from some other issue; critters, bugs, drought, and the like. what the others said about hardening them is right.

If you keep moving it from indoor lighting to sun and back and forth it will stress out the plant. It wants to stay in one spot and get used to it.

no offense but i strongly beg to differ.

darkdestruction420 said:

If you keep moving it from indoor lighting to sun and back and forth it will stress out the plant. It wants to stay in one spot and get used to it.

no offense but i strongly beg to differ.

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Care to elaborate?

darkdestruction420 said:

If you keep moving it from indoor lighting to sun and back and forth it will stress out the plant. It wants to stay in one spot and get used to it.

no offense but i strongly beg to differ.

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No offense taken, this has just always been my experience when moving a plant back and forth between indoors and sun every day. Which is why I don't do it anymore unless hardening off a plant to be permanently moved outside. I don't see how it could do anything good for the plant to have its lighting changed all the time . . .

is the sun always the same constant intensity guys?

No, but I still don't see what benefit it could have to be moving the plant in and out all the time. That's all I was wondering, is what good does it do for the plants? It just seems logical that they would rather get used to one consistent light source.

the sun is better than cfls and hps , much much much better. say for example you wanted to do a 24/0 light cycle, or any light cycle longer than the time the sun is up, you could do 24/0 under the indoor lighting alone or you could use the sun during the day and bring them in at night and put them under the lights then. which do you think will be bigger? the one that got all the great sunlight or the one that stayed in under the indoor lighting all day? Sunlight is easily the best light source to grow with, it destroys hps the way hps destroys cfls so why wouldnt you want to use the best possible (and free) lighting at your disposal?

You're right, which is why you would plant the plant outside instead of moving it in all the time. There is the huge debate about whether 24/0 is better than 18/6 and so forth (which I don't want to get into), but in my opinion keeping it outside where it gets sun all of the time, not just some of the time, would make it much bigger than half sun half indoor lighting.

And the other reason is that if you are constantly bringing a plant inside from outside, you will most likely get spider mites or some other bad insect infestation. The risk of spider mites alone is enough to make me not want to bring plants in & out.

Thats cool I respect your thoughts on that, I did mean keep it out all day if possible, I never had any spidermite trouble bringing plants in and out when i started and only had cfls, to be honest i dont think its worth the effort of bringing them in to put under the cfls at night anymore but my main point on all this was that it wouldnt stress them out or anything to do so if you wanted to. I kinda got sidetracked in explaining the possible reasoning on doing it last post. lol.

you guys have good points. i just want to add that a plant?(any plant) that is outside in intense light will grow smaller, thicker more densely spaced leaves with stomas that are also smaller. it is a tactic the plant uses to avoid exessive water loss and radiation burn. a plant grown in more gentle light will have larger, wider thinner more delicate leaves with more/larger stomas. water loss and radiation burn is not a problem but gathering light is, so the plant responds accordingly. when we are aware of these physicological differences we can care for the plants needs effectively. i agree with the idea that a plant wants conditions to be stable. our best yielding plant ever sprouted in late november from a fallen seed from an exceptional female. winter that year was very wet and snowy but not bitterly cold. that little girl survived all winter through several snows and frosts and was three feet tall and very bushy and dense by the end of march. when we replanted that canyon in spring we couldn't believe it because we remembered her from harvest time the previous fall. it stated shooting like mad and by june it was massive, much more massive than any other plant we ever grew. it started flowering by the end of june and grew even more. we chopped the main colas off in mid august and she responded by producing more huge buds in her remaining branches. by this time she was still fifteen feet tall (after the first harvest) and still twelve feet wide with side branches coming out of her side branches. our familly is convinced that it did so well because of its ideal location and the fact that it had a lot of time to adapt perfectly to its evironment. after the second harvest she kept living untill an extreme frost killed her in late january...........above all this, the coolest thing to me was that her main fan leaves had seventeen fingers. she was indica dominant. the sad part was.....not a single decent male nearby to pollenate her.

darkdestruction420 said:

Thats cool I respect your thoughts on that, I did mean keep it out all day if possible, I never had any spidermite trouble bringing plants in and out when i started and only had cfls, to be honest i dont think its worth the effort of bringing them in to put under the cfls at night anymore but my main point on all this was that it wouldnt stress them out or anything to do so if you wanted to. I kinda got sidetracked in explaining the possible reasoning on doing it last post. lol.

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Damn, I think there must be more of a spider mite problem around where I live. Every single grow I have seen in person where the grower would take plants in and out had spider mites. It's usually one of the first things I ask people if they have spider mites, "do you take the plants in & out?" That's awesome if you can go in & out without getting 'em, I wish that was the case here!