PLease Help Leaf margins are turning yellow and the tips are turning up Help!!!!

Hey all fellow growers
I need help!
I just noticed that on one of my white widow plants that the leafs are yellowing at the margins and the tip of the leaf is turning upward. YIKES!!! I got to help her feel better.
This just started today what do I do? I have been feeding with Ferti-lome blooming and rooting soluble plant food 9-59-8

Thank you kindly

how often are you watering whats ur ph? whats ur medium?

need much more info. and pics if you have them.

I water every day they are outdoors in plastic pots on a roof top deck .I have no idea what the ph is no idea at all

I have posted some pics I am new to this site and posting in general so bear with my lack of experience the pics are posted in another thread

Possibly over nutrienting? How often do you ad nutes? I've killed some clones by giving them 2 much vitamin B in their reservoir. The entire plant dried up.

yea slow ya roll on the nutes brosef

id flush for a few days no nut. just straight water. got get a ph testere bro its the most important thing to have. amazon 10 bucks

shizz said:

id flush for a few days no nut. just straight water. got get a ph testere bro its the most important thing to have. amazon 10 bucks

Click to expand...

I will continue to flush what am I looking for as far as the ph goes? I mean everything has been fine really great until today I think maybe I have over feed, I;m surprised at how concerned I am. But given the time and energy put into the little darlings it would be a shame to see things go south at this stage. Thanks for your efforts