First Timer - leaf colors during flowering.....

[MrMike656]

Well, I have a bunch of things I won't do next time. I used Miracle-Gro potting soil, I didn't transfer them out of the seed pots for way too long, etc. I transferred them to pots at the end of June and into a grow tent July 2. They really took off. I flushed the soil a couple of times to get rid of the delayed release chemicals, but now I'm getting leaves that a yellow or lighter green. The ph is fine, and they've been getting enough water. Other causes - don't think I've overwatered. Not enough/too much nitrogen?
As far as nutrients go, I've been using Dr Earth's Bud & Bloom when the buds started to appear, but have been using a very light hand (two tablespoons worked lightly into the soil, then watered in). Have done it twice, two weeks apart. Am I overdoing or underdoing?

I know I probably would have gotten a better yield had I done more research, but it's been a great learning experience!

Seeds are Humbolt/Catskill Blueberry Muffin, autoflowering Feminized
Spider Farm Grow light set at 60%, about 16" away from plants

 

[Bluey]

Light Green to yellowing is normally associated with lack of N when it comes to nutes. Really dark green N toxicity.

I think you've probably been under doing it but your close to the harvest window by the looks of it.

Nice job nonetheless.

 

[SoOrbudgal]

Oh man i love that strain. Grow an learn that's how to get better results. You've done damn good with what you used, they look within 3wks and i'd give a dose of unsulferated molasses a good teaspoon per 1/2gal of water 1xwk if there still drinking an pots still draining well. Good job

 

[MrMike656]

Thanks for your comments!!

 

[Tone3000]

why is your light set at only 60%? Typically, the more light, the better!

It looks like the yellowing is mostly on the lower leaves. The very bottom leaves turning yellow is not unusual close to harvest and I would guess that the leaves on the lower part of the plant that are lighter colored might not be getting enough light because they are farther from the light (which it not at full strength - crank that baby up!).

 

[MrMike656]

Tone - I read somewhere that that's what I should set it at for the amount of plants I had.....I guess it didn't hurt, but I'll crank the sucker up!

Thanks!