Hi Noober here in need of help. Dying plants? yellow leaves purple stems!

lucidverse

Active Member
Hi Im kinda new to growing and the community so any help would be appreciated



I have grown these for about a week, I cant figure out with there is slow growth and actually two of the previous ones died already and shrivled up. My main questions are why does one of them have purple stems only at the bottom, there are also grey spots, ive looked through the forums and they soud purple stems and grey spots could be a phosphorus deficiency, and why would my cotyledons be yellow, is that a sign of imminent death?



My other one has completely yellow cotyledons and the leaves are somewhat small for 1 week. Why would there be yellow leaves? It happened to my 3rd plant too but the yellow leaves were the 3rd and 4th leaves on the sprouts and that one ended up dying.
I am reluctant to put the 26w lights closer because i dont want them to burn. My other question is how do i water sprouts? I feel like using spray bottes doesnt penetrate enough and the light is just soaking it up. Sorry for the tangent thoughts in my questions im kinda faded. But yea any help would be appreciated.

Any thoughts on my grow set up would be appreciated as well! I am using 8 26 w 1800 lumen 6400k/ 5500k bulbs in a closet that is embedded in my walls. Thanks for your help !
 

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hi there, nice growbox btw.

are you giving those little seedlings any nutes?

when you say yourusing a spray bottle how much water do you actually give to the plant and how often?

iv seen quite a few healthy plants on here with purple stems i assume its just strain related.

your medium looks to have very big peices in it? is it mostly like that or has watering caused those bigger bits to float to the top? it looks to be to thick for such small plants.
 
purple stems means it is too cold for your plant, check temps and make sure it is in between 68-80
as for the coloration of leaves, could be many things, nitrogen def, but i think it is your watering schedule
how often do you water?

and working with soil mixtures is difficult to maintain a constant nutrient check and PH levels could be different in different parts of the soil mix.
 
im giving them sme organic plant food that has fish meal guano kelp phosphate bone meal and some other shiet. I spray it pretty well 20 sprays deep into it about twice a day, just so that the soil is moist. THere was a weekend that i left for 3 days and it was unwatered for about 36 hours. i dont know if that would affect it.

I also heard the efficiency of CFls go down almost exponentially as u get farther away, i have 8 lights all of them are pointing at a plant but the 8 of them surround 2 main plants. Is 4 inches too far? Also, what proportion of 6400k as opposed to 2700k in vegging? I heard you can use 6400k bulbs in flowering and 2700k in vegging but you just have to get the proportions right. so far i have heard 3/4 of the lights should be 27k and the rest could be 5500k or 6400k is this true? are T5 lights > CFL??? Thanks for all your help! id smoke u out if i could haha
 
im giving them sme organic plant food that has fish meal guano kelp phosphate bone meal and some other shiet. I spray it pretty well 20 sprays deep into it about twice a day, just so that the soil is moist. THere was a weekend that i left for 3 days and it was unwatered for about 36 hours.

there we go, you are over feeding that little seedling. DO NOT FEED your seedling for around two weeks. the seedling uses the first set of leaves as food and a powersource. you are if i am correct overdosing your babies.

Watering cycle: water soil until it is wet'ish. then do not water untill the first inch of topsoil is dry. then rewater. you should be watering say once every couple of days dependant on the heat in your grow area as your plant grows it will drink more water. if i am wrong a few of the veterans will be in too spank me and correct me :mrgreen:

but PLEASE stop feeding your seedlings. wait atleast a couple of weeks before feeding and then use a quater strength mix of your ferts and slowly build too too the correct amount. this is what i have read about watering and feeding. i myself have murdered my seeds by feeding them :cry: they only need water. you have a nice little area too.

im not sure about lighting. but you can have those lights a little closer it wont hurt rule of thumb is place nad under your lighs. if it hurts you it will hurt your plants your plants will only burn if they touch the CFL's you have. you could also do with a smallish fan too help your seedlings/plants grow heathy thick stems and also circulate air.

Tamzi
 
its supposed to be 1 teaspoon for gallon, I didnt even put half a eye dropper, im pretty sure its not that. but could be, i am definitedly not going to put any more, any other input on why the cotyledons specifically are yellow. From what ive heard they are good indicators of the plants overall health. as of r the purple stems towards the roots, they are not only purple but scrawny as well, can i do anything to help this?
 
o ya i forgot to say that the seedlings were in that state BEFORE i started ferting. i only started ferting because the yellow leaves looked like they needed nutes. Thanks for your guysss help. cheers
 
yeah give up on feeding them for the time being. and water them. forget that spray thing keep that for later on.

for now you need too take care of watering. water soil till wettish as said, then water when the first inch or so of soil is dry. an easy way too tell is pick up pot once watered, you will notice how heavy it is. in a couple of days lift pot again, if there is a difference in weight it needs some water. your first set of leaves are fine. the yellowing is because the seedling is using them as food. you will notice in the next few days and weeks alot of changes.

Stems: too build these up most will use a fan too curculate air and also breeze on the plants, this causes the plant too send some energy into bulking up the stem. a seedling that is very tall only happens when the light is too weak or futher away from plants than should be. they put all the enegry into chasing sky high after a while they become so bandy they fall and need propping up. so the hand under light trick is ideal, if hand burns lights too close. you want it too feel warm but not burn. in right conditions plant will explode into life growing at a large rate and lights may need moving daily or every few days.

your spray mister will be handy later on when plants are bigger, you can use the mist spray too add nuets directly through the plants leaves. i dont know much about this myself but am learning about that also.

hope that helps you

Tamzi
 
my little plant (just coming out of the soil still in seed) has a purple stem already, i assume its ok, just like yours, but the yellowing of the cotyletons is a bad sign this early
 
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