Park's Whopper Tomato Problem
Hello! This is my first year of vegetable gardening and I have a question regarding the Park's Whopper Tomato variety. I bought some seedlings from a local nursery and planted them in the ground in late May. I also planted Big Boy and Lemon Boy varieties. I have already harvested three Lemon Boy tomatoes and they are great. However, my Park's Whopper are red on the bottom with black patches towards the top. They are also cracking like crazy. What I have I done wrong? I water them once every week deeply from the bottom. I did not mulch or prune them. Please help because I want red tomatoes.