Is it a Pumpkin or a Weed?

We have a flower garden along the side of the garage in the backyard. A vine started growing and my wife would not let me pull it out with the other weeds. She said it was a pumpkin plant. I said it looks suspiciously like a weed. Huge orange flowers would bloom and then fall off. This has been going on all spring and summer and NO pumpkins. I was going to pull it again and my wife said, "Lets give it a little more time, I am pretty sure it is a pumpkin." To this day there is no sign of a pumpkin. We'll give it some more time because I think pumpkins are harvested in the fall. (I really believe I am going to be able to tell my wife this fall, "I told you so".) This whole ordeal kind of reminds me of some professing Christians. They claim to be believers, and they may know the language and appear to be believers, but there never seems to be any fruit. Jesus talked about the wheat and tares. Tares look like wheat, but they are not the real deal. Every plant that has sunlight, water, and good nutrients in the soil will bring forth fruit. Every believer that has Sonlight (Jesus), water (the Spirit), and good nutrients (the Word of God) will bring forth fruit.