One of my early tomato plants has flowered. It’s probably because these tomatoes have grown so much that they’ve become root-bound (the roots have run out of space to grow); the plants can’t get any bigger so the only thing they can do is to bloom.
I’ve read that tomatoes don’t require any help from bees, etc. to be pollinated, so these flowers may set fruit even though they are indoors. (Update: They did!) I’d like to transplant the tomatoes into the garden, but the weather is still too cold. The weather prediction is that we’ll get close to freezing again later this week. We still have kale growing in the garden bed where the tomatoes will go, so that is another thing that needs to be taken care of before I can transplant these tomatoes.