I've mentioned this in another post.. its getting worse, and I'd really like opinions. I transplanted this plant into the ground right before it went into flowering. Ever since its been yellowing from the bottom. Is this plant okay and I'm just worrying too much, PH off, nitrogen deficiency maybe, who knows???
Leaves yellowing from the bottom up.. Nitrogen, potassium, or magnesium deficiency possibly. Are you growing in only native soil, or did you mix in some compost? Definitely looks like a deficiency, possibly caused by under feeding or pH issues (try to keep the ph of your feeding water around 6.5 or so in soil and adjust after adding nutrients to the water, not before). This type of yellowing could be considered normal late in the flowering cycle, but is a problem this early on.