Regal Pelargonium Leaves Have Red Spots On Top And Bottom

Question From: K. Files - ALABAMA
Q: My regal pelargonium leaves have red spots on them that are shown on the top and bottom side of the leaf. All my plants now seem to have them. Can it be weather related? Could it be fungal? Should I be worried? It is very cold and quite wet here at the moment

A: Sounds like rust to me. Take samples of the leaves in a sealed plastic bag to an independent garden center for an accurate ID and control.