HomegrownOhighO said:

So, both plants I am running right now have started to develop some red/purple stems and veins. They are both Blueberry autos from fast buds. The one is about 2 weeks into flower and outside of the discoloration she looks to be doing relatively well. Now the other one is still not starting to flower so it is in my veg tent by herself. I did do a compost tea last week to get some nutes to them organically but really not sure if they liked it or not? I know that the genetics of blueberry do call for some purple leaves and buds but I also read somewhere that if it's strictly on the stems and leaf veins something is deficient in nutes. However, on the main stalk bud sight a few of the white hairs have turned a dark purple, not sure if that matters or not. I know the hairs do change color of time. What do you all think?

Click to expand...

LoveGrowingIt said:

She does look hungry. I'd like to know the VPD, or the temp and RH.


Some Epsom salt and gypsum will work as well as CalMag. Spread a tablespoon of each on the soil and water.

Click to expand...

Fromunda506 said:

That’s a sign that she is struggling to process phosphorus. The kind of burnt looking yellow tips that aren’t really burn are from struggling with potassium. Those are both mobile elements. When they show up at the bottom of the plant and in the older leaves, they are usually just hungry. When you start to see it on the upper part of the plant with healthy leaves at the bottom, it is frequently a lighting intensity issue that is popping those deficiency symptoms in the upper canopy. What is your lighting situation like my friend? I might back them off on the distance or the dimmer just a bit and see if you don’t see some improvement. Good luck. Cheers.

Click to expand...