So I can't figure out quite what the problem is. Ive seemed to have purple stems for a while now and can't get rid of them. I've been told from friends It might be a calMag def, and also could possibly a nitrogen or potassium def. Figured id post some pics and get some other opinions. The plants have now started to show a little yellow at the bottom of plant, and seems to look a little lighter in color. Some of the yellow leaves have a little brown as well
purple stems and yellowing of bottom leaves
- Thread starter Redlum
- Start date
chuck estevez
Well-Known Member
Are you using r/o or distilled water?
chuck estevez
Well-Known Member
and you are not using cal/mag I am assuming. MJ really loves that cal/mag and b y using r/o you not only add water that has it removed, it helps reduce the actual amount in the medium. That causes lockout of all kinds of goodies.
ugorg
Well-Known Member
6.5 is min you need for uptake of cal and mag in soil try uping it to 6.6 6.7 as you can see from the chart 6.5 is the bottom of what your trying to give the plant
ugorg
Well-Known Member
plus you ph to what you require your plant to uptake as shown in the chart
ugorg
Well-Known Member
at this rate your plant lack 3 vital minerals
TTHyatt37
Member
if the new growth is looking happy and its only the bottom leaves yellowing and nothing else then id say its fine tho. i tend to worry more when signs of deficiencys or PH imbalances appear on newer growth. theres alot of things ive read and heard tho about the yellowing of the lower fan leaves. im still fairly new and learning alot. but thats my input. its all a learning experience for sure, thanks for sharing. hopefully its nothing too bad (also certain strains will determine stem color ive been told)
markymark88
Well-Known Member
She's hungry man feed her if you haven't but it's hard to be sure. We don't know anything about it or the environment....
markymark88
Well-Known Member
What's your feeding schedule like? Feed, water, Feed,water? In soil you don't want to feed every watering because salts build up. So if you have been constantly feeding flush them. If you haven't been, up your feeding concentration a bit and make sure you are adding yur calmag if you nute line doesn't provide it. I'm not familiar with those nutes. I'd also raise humidity in veg
