Flowering and yellow leaves

[turksteelman]

In flowering for 4 weeks. Buds look great on the Indica. One plant of unknown chronic has developed a yellow leaf issue. The yellowing is on the very bottom leaves and then some in the middle. Is this normal at 4 weeks with some strains?

[clovisman]

it has been my experience to have yellowing leaves at 4 weeks- I currently am experiencong a lot of yellowing at 2 weeks , which I have not seen before- it has been very hot and dry here though- in past grows I have harvested at 8 weeks flower and all leaves have yellowed and fallen off at that time-

[Ganja Guerrilla]

turksteelman 4 weeks is a little early & without Pics hard to tell if there is an issue

clovis your going yellow too soon

you both should complete a soil runoff test to rule out PH related issues

with PH corrected water (6.5-6.8PH ) pour enough water in the pots so the water runs out the bottom of the pot ...collect & test the PH of this runoff water....

If the PH reading is out of optimum range 6.5-6.8 PH, you need to flush your plant.
Flush with PH corrected water, till in optimum PH range, 3 times the volume of the pots rule of thumb but may require much more flushing if the rootball is thick & sour

EG: 1 gal pot = 3 gal. flush

add 1/2 strength nutes to the last gallon of the flush.