Planted cherry tomato plants in large pots on an east facing sunny patio. The tomaoes are growing but are brown. What is the cause of the full grown tomatoes being a brown color?
Cherry Tomato Plant
Certified GKH Gardening Expert
Is this brown on the leaves or the fruit itself? As long as the overall plants look ok and appear healthy, I would not worry too much about browning leaves. It may just be in need of some additional watering. As for the fruits becoming brown colored, you may have some blossom end rot. Here is more information: https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-blossom-rot.htm