Yellow leaves all of a sudden

[Donna]

The plant was fine until about a week ago. Outdoor grow using Fox Farms soil and FF trio nutrients. Water 2 gallons every other day, 30 gal smart pot. Can't see any bugs. The light specks in the photo are ash from forest fires.

 

[D.A.A.S.69]

Hello Donna, pretty plant, You been checking your ph in an out ? Water when the soil gets dry not on schedule. Them some big pots, what kind of plant is it.

 

[Canyon Grower]

If yellowing is occurring on lower leaves or leaves inside the bush, I wouldnt worry. Plants at this stage start to discard old leaves and put energy into buds. Very nice looking lady Donna, should be a nice harvest ahead!

 

[D.A.A.S.69]

It's not only on the bottom.

 

[Canyon Grower]

True enough, but I observe most lower in the plant until about harvest when yellowing can occur anywhere.

 

[Buddy]

My northern light do this are they starting to bud, get some cal-mag should clear up in no time good luck

 

[Flockshot]

It appears that you have a potassium deficiency. Could be a lack of K in your soil, or there is some reason (like perhaps PH) that your plant can't take up the K that is there.

 

[Donna]

This is my first plant. It was given to me, so I don't know what it is. I haven't been checking the pH all along. Why would it be different now?

 

[Donna]

I have been a little lax on the feeding as I was out of town for a couple weeks. Do you think it will recover by my regularly using Tiger Bloom and Big Bloom?

 

[Donna]

I have been a little lax on the feeding as I was out of town for a couple weeks. Do you think it will recover by my regularly using Tiger Bloom and Big Bloom?

 

[Flockshot]

Any name brand nutrient line will correct the problem. The leaves that are now yellowing will not recover at all. They will wilt and eventually fall off or be taken off, but no big deal on that.
Resist the temptation to overfeed on K to try and 'catch up'

 

[D.A.A.S.69]

Your water PH is very important if you want to stop deficiencys. You have got to keep the PH between 6.0 -7.0 . Try for 6.5ph . Your plant can't use the nutrients if the PH isn't right. Water when dry not every 2 days. Good Luck