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if it's that cold in there then i would get a heating blanket and put under them.keeping the roots warm is more important than the plant it's self.anything below 60 and it can effect the plants growth.like said above it can cause stress on the plant and thats not good depending on strain.
the reason why cold slows growth rate is because it slows uptake of nutes and it's break down of the nutes to uptake as food.
my guess is that when your Ph tester shows up you will find the ph is too low. If this is the case, then you are experiencing a Mg deficiency (which takes weeks to actually show up) mixed with minor deficiencies like the Phosphorous mentioned above. If you leaves start to curl up and dry, then I'd put money on it. Several things can exacerbate a Mg def like having growing medium that is too wet, and cold temps. Cold temps and a low ph is sure to bring on a Mg def.
Epsom salts (not the supermarket kind but the kind meant for agriculture) can cure in a few days when used as a foliar spray. I don't recommend this because it can cause more probs than it's worth... correct the ph by transplanting into a mix containing fine dolomite lime. Dolomite lime contains Mg and Ca and will keep your ph up while supplying the plant with Mg over the longterm. The nice thing about Dolomite is that is will not raise your ph past 7 and it does not leach out of soil for months. You can also water with Epsom salts (1 tsp per gallon) until the symptoms disappear, assuming you have corrected the ph problem.
If this is the case you will start seeing more yellowing on those leaves, increased brown spots, leaves curling up, more purple stems, and this will all travel up the plant. Mg def can take longer than other deficiencies to correct. You can get a cheap drip-test to measure ph of the runoff water.
Cal-Mag can also help if you have corrected the ph.
Fix the obvious stuff first. (temperatures, feeding schedules)
Adding shit without knowing why is folly. Avoid magnesium sulfate, (overdose will cause lock-out) avoid adding shit to change ph till you know your ph, avoid any additive till you know they need it. (CalMag, for instance) Throwing everything at it in the hopes of a positive result, is a good way to damage your ladies.
Give 'em what they need, not what someone else thinks might help. Proper temps and a rigid feeding schedule are a couple of good places to start. ;)
Rusty,
Read the post before replying to it.
"If this is the case, then..."
Magnesium sulphate can harm plants in excess (as can anything else beneficial for plants), but can quickly correct a Mg def in a pinch if not overdone... as can Cal Mag. You are making yourself look bad bro... try being more constructive with your offerings... and read carefully.
I read the post fine, and I stand by my comments. And believe me...I'm usually vary careful and delibrate about the advise I give. You should try it some time. :thumbsup:
How hard is the water in your area? It sounds like root lock or too much iron or magnesium in your water.
I would try some PH'd distilled or R/O water to flush then try a different nuti.
Just my opinion.
first time doing all this i started bloom feb 6 and now i see my leaves are dying out little by little is it time to harvest yet i posted up a pic
It doesn't look like she is ready, Just pinch off the yellow leafs. This is normal as the plant goes into flower. It is also a good idea to "prune" your plants leaves to give optimum light to the buds.
Found out my well water was ph 7.0. got some ph down and adjusted for proper ph.
Since posting this thread I have transfered my babies to flower, 12/12 under (4) 400 watt hps lamps, as well as corrected the temp variables. I now have a constant 72 deg.
When I put them into flower they were 14 to 16 inches. Three weeks have gone by and they literally exploded!!! several are over 26 inches and starting to flower. In fact I am concerend about them getting too Big now! Next time I will put them into flower at 12 inches max. They look healthy and happy. So I guess the ph was the problem. As well as resuming full strength nutes.( Humbolt Nutriants Oneness, Liquid Karma, Alaska Fish 5-1-1 and Pureblend)
Still a little of the brown spots on lowest fan leaves, but not enough to get excited about. All the other growth looks great.
As a side note: I took clones off of the Flowering plants just to see what happens, I don't have high hopes for them but being curious, I had to try. I also took clones befor flower so no great loss if I loose them. Just an experiment. I took them two days ago so its too early to report anything yet.
Happy growing, and thasnks for all the advise.
7.0 isn't bad before adding nutrients. For simple watering though, a tad lower is fine.Quote:
Originally Posted by Randm999
They'll slow vertical growth and start filling-in, but should still gain a few more inches in overall height.Quote:
Originally Posted by Randm999
There's a strong possibility that the spots are either from undernuting or splashing nutrient solution on the leaves, or leaftip irritation from another leaf. If newer growth is doing fine, I wouldn't worry about it.Quote:
Originally Posted by Randm999
Shoots from ladies already flowering can be quite tricky. Mortality rate skyrockets. Best to take them prior to flowering. About a week or two prior to the switch, to give the donor a chance to recover.Quote:
Originally Posted by Randm999
Good luck. :thumbsup: