Nice containers. Are you feeding them because they are pretty tightly packed? No leaf lives for ever. Some yellow leaves at the base of the plant are normal and you can just snap them off with your fingers. If they don't snap they are still alive and feeding the plant. There is no point using any spray until you know what you are using it for. It is a waste of your time and money and may do more harm than good.

Floral_uk, thanks for your response. Yes, I've been using Miracle Grow & am starting to wonder if that could be part of the problem with the yellowing of the leaves at the bottom, even though I'm not using it as strong as the directions recommend. Posting a picture of one of the leaves again as I noticed it is further away from this thread (my fault). Anyway, it is nothing to have 5 or 6 leaves turning like this in each container every other day. Just seems a little excessive to me.

Are you feeding them at all? If so, when (time of day) and how often? It almost looks like the leaves are getting burned by too much fert or chemicalâ¦especially if youâÂÂre doing it when the sun is high. However, I could be totally wrong (anyone please correct me if so!) about this since IâÂÂm quite a newbie to geraniums.

Also, I would lay off any spray for the time being and see if the yellowing cycles out after awhile/for new growth to come in.