Growing tomatoes

Weeds are just plants that are growing in the wrong place. My fight against weeds usually sees me digging out annoying yellow flowering clover or onion weed. But in the past few weeks I have been pulling up unusual weeds like this:

Tomato seedlings sprouting up everywhere. They come from the worm castings I spread over the garden beds before mulching about a month ago. Obviously those castings were laced with tomato seeds and these little plants have been springing up all though my garden. I feel terrible about hauling them out and throwing them away, but I just don't have enough room to successfully grow this many tomatoes!

Some, like these, I am leaving to see how they go. But the rest are going on the compost heap, which seems a shame.

Now, if I could just get coriander to grow wild in my garden...