New growth bright/lime green

Al my new growth is bright lime green anyone have this before....I was wondering if it is from low temps at night. it gets down to 67 degrees. They look healthy just the lime green new growth....they are 6 days into flower. anyone?

did you stop giving them Nitrogen?

i just flushed them yesterday. Got the ph dialed in. So they are soaking wet, so i can feed them...i could foliage feed them......but if it nitrogen shouldn't they just start taking it from the lower leaves?

They are under 600hps....the light is far enough away i don't think they are getting bleached.....hmmmmmm........anyone?

Dirty9mm said:

i just flushed them yesterday. Got the ph dialed in. So they are soaking wet, so i can feed them...i could foliage feed them......but if it nitrogen shouldn't they just start taking it from the lower leaves?

They are under 600hps....the light is far enough away i don't think they are getting bleached.....hmmmmmm........anyone?

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yeah the lower leafs would be yellowing

Where are you in growth? Mine do that sometimes when they are growing super fast, like first couple weeks of flowering.

Images could really help here so we could stop guessing.

I'm with Past times.
My new growth turns bright lime green about a week or two into flowering during very rapid reaching out growth as I call it.

Ya sometimes the new top growth looks real bright green, this is normal in my opinion. As long as they are green and still growing, they are good. I would wait until they dry some before feeding. See how it goes over the next couple days.

Here are some pics.....sorry the HPS is on.....



they are 6 days into flower. The tall one on the left is vanilla kush and the tall one on the right is acapulco gold. the rest are white widow

look healthy too me but its hard to see with hps light

Dirty9mm said:

Here are some pics.....sorry the HPS is on.....

View attachment 2493838View attachment 2493839View attachment 2493840View attachment 2493841View attachment 2493842View attachment 2493843

they are 6 days into flower. The tall one on the left is vanilla kush and the tall one on the right is acapulco gold. the rest are white widow

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Ya, they look good in my opinion, real healthy new growth from what I can see.

It is totally normal. Before I even read 6 days in flower I was thinking "did you just start flower"? It's cool.
Did you transplant them within a day or 2 of flipping 12/12?

I'm not certain on this... but I THINK... I have noticed less of this light green growth when I have given my plants a chance to settle in to their flower pot for a week... rather than transplanting straight to the flower pot and flipping 12/12.

I've seen people giving their plants sulfur(i think it was) to combat this... CalMag+ has sulfur?

You just flushed them? If that is the case I would feed them now. They grow a ton in first few weeks of flower. They still need Nitrogen during this so I like to do like a half dose of my veg nutes with a half dose of the flower nutes. for at least the first water in flower. Then taper off the veg nutes by week 3ish.

I know this is an old thread, but I'm hoping to fire it back up here. I have light green new growth, with some dried, and curling up, leaves to go with that. This is my first grow. Just one plant. Alaskan Ice. Mid to late veg. I have her under HPS @ 750 watts 24/0. Canopy is 18-19" from glass on hood. I'm using general organics nutes. Feed, feed, flush w about 400ppms. Was planning to up that my next feed in 4-5 days(flushing tonight or tomorrow morning). I was a little too aggressive with my trimming before I put her in my trellis...it's my first time. Average temp is 79 degrees with a high of 81 and a low of 75. Average humidity is 45ish, high 55 and low 38 percent. I hope this is all the info you guys need. Thanks in advance for any and all advice!

Oh yeah, my ph is always 6.0-6.4. I let it vary a bit between those ranges

Definite signs of nute burn maybe made worse by hard water if that's what you are using. A flush with 3x the volume of the pot it's in followed by a light feeding would be a good idea. Switching to RO water if you're using tap water would be another good idea.

When you flush don't wait until the pot dries before feeding. Just pour in your water with 1/4 strength nutes after you've flushed it good so it doesn't starve for a week until it gets dry enough to need a watering.

Good luck!

OldMedUser said:

Definite signs of nute burn maybe made worse by hard water if that's what you are using. A flush with 3x the volume of the pot it's in followed by a light feeding would be a good idea. Switching to RO water if you're using tap water would be another good idea.

When you flush don't wait until the pot dries before feeding. Just pour in your water with 1/4 strength nutes after you've flushed it good so it doesn't starve for a week until it gets dry enough to need a watering.

Good luck!

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She is in a 7 gallon pot, so 21 gallons?! I have been using gallons of bottled baby water. It's ppms are around 100. Ppms in my tap are 75ish but I don't use it anyway. Soon I can buy an ro system, as Ive been educated as to the benefits. Thanks so much for helping so quickly.

"Nature's first green is gold, her hardest hue to hold"-Frost

Just looked at your plants though and they have some issues as its not what I expected.

To me it looks like excess K or a micronutrient. Not familiar with your nutrients but the yellowing with green veins will only happen with certain nutes, and even less on newer growth. I would try to get your rh up as well.


Shit Im confused whose pics are what?

OP looks fine from 2013 ha. Whoever else posted was who I was replying to. I thought the plant looked ok at first, now I know why.

BigDaddyBeaf said:

She is in a 7 gallon pot, so 21 gallons?! I have been using gallons of bottled baby water. It's ppms are around 100. Ppms in my tap are 75ish but I don't use it anyway. Soon I can buy an ro system, as Ive been educated as to the benefits. Thanks so much for helping so quickly.

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For a complete flush you want 3x the volume. If the plant is just slightly overfed then 1 volume is often enough to reduce the nute level to something better for the plant. You could save money by flushing twice with tap water then doing the third with good water and low nutes to push out the tap water with the final load. I find a shop vac set up for liquids works great to suck the runoff up when the plants can't be moved to a sink or bathtub for drainage. Flushing goes so slow even with a light airy soilless mix.

That bottled baby water must be more expensive than buying RO water and often has fluoride added to it. Must have minerals added to be 100ppm. We buy RO water here for drinking, cooking and for my plants. It's $3.50 for a 5gal jug and is always less than 20ppm. We don't have town water so my house water comes from a dugout on my property and is only filtered down to 5 microns with no sterilization. Doesn't seem to hurt the animals so the cats, dog and chickens always drink it. The dog is 16 years old and still likes going out and rolling around in the snow on a sunny day like today so it's not bad water. It is around 400ppm out of the tap so would cause major mineral buildup in the rootball after a few waterings which leads to toxic salts buildup in the plants that looks like what is starting in yours. Even a 100ppm water will build up minerals in the soil after repeated waterings.

I have a distiller that I'm going to sell or trade in for my own RO unit. Costs more for the electricity to make distilled water than what the RO water costs and adds lots to my already high electric bill. The Polar Bear distillers like mine are $3000 new so I should be able to get a decent RO unit for what I can sell it for. I'll need a booster pump and some better pre-filters for it too as most come with a 5micron pre-filter and I already filter that fine anyways. I want a 1 micron then a better quality 0.5 micron carbon filter after that to keep the membrane filter super clean and working a lot longer. If I fill the bathtub up with cold water and allow to sit overnight you can see a fine film of sediment on the bottom of the tub. That film would form over the membrane filter in the RO unit as well and plug it up pretty quick. City/town water is already filtered finer than 5 microns so why the RO units come with that size filter is a puzzle to me.

Sorry for taking so long to get back here. I have children, and this poor lady I adopted healthy and have really done a number to her...thank you all for the advice! I have since followed the advice of my first responder and flushed her. I gave her less than 1/4 nutes(refuse to burn her ass again!) as she started to perk back after the flush and then a watering with just epsom salt(Pennington). I am on an every other feed schedule so tomorrow I will be just giving her ro with recharge(any help with using recharge would be great too!!) in it. When I feed her again I will go to just shy of 1/2 nutes and so on.

Here is how she looks now...