Monday my worry over yellowing of small new leaves on bottom of Bee Balm (not Jacob Cline but red) got the better of me and being new I had to do something.

I searched the internet and these forums to find a "diagnostic" but they talk mostly about larger top leaves yellowing from the outside towards center or yellowing of tomato plant leaves.

All I could find about small new lower leaves yellowing was either a nitrogen deficiency or a deficiency in a micronutrient that helps uptake of nitrogen. They suggested working in some nitrogen source (Blood or Bone Meal) and I just happened to have Blood Meal because some other articles said it would deter raccoons/squirrels. It didn't so I had a little of it left and worked it into ground around Bee Balm and watered it in. Didn't use the Bone Meal as yet other articles and posts on these forums said it attracts critters. I read too much from not enough actual experience!

I ran out to check my Bee Balm when I saw your post to make sure and the small bottom leaves are greening up very nicely.

Only the garden gods know if it was the nitrogen in the Blood Meal or not but that's my limited experience.

If the leaves yellow up again I'll be searching for another answer but have my fingers crossed.

Now I'm worrying about too much foliage and sacrificing flowers because of other people warning me about using too much nitrogen. Hopefully I didn't throw the whole nutrient thing into a tizzy with that little bit of Blood Meal.

I can't wait until I know more about what I'm trying to do in the gardens!

I'm going to try that remedy. Thanks Newbie!