That isnt a tomato plant, its some kind of pepper. Where abouts are you, that would depend on if you can grow tomatoes outside. Peppers need even more heat, proably be better off on your kitchen windowsill
ignore my post, PC crashed yesterday, then phone line went (water ingress in BT box) and its just appeared today, I wrote it before I saw you were only showing the planter.
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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.