|
Are you still running superthrive? If so, stop.
You can raise pH by adding a commercial plant pH up to your fert solution until it is about ~7.5 to bring a soil that is showing runoff 6.2 up to 6.7. But the normal way to deal with that is flushing according to the sticky at the top of this section.
You are definitely getting locked out by low pH- all the symptoms are there.
One last thing to check is your pot drainage. Pot needs a pot that drains well. If it has a catch tray built in, rip it off and feel up into the drain holes to see if there is soggy soil up there. That is often the case with those, and can make low pH problems MUCH worse.
|