*** Tomato Plants not generated until LEVEL 50 ***
It seems VERY poorly planned to get the Tomato on Wheels at Level 45, Tomato recipes and Levels 46, 47, 48 and (I assume) 49, but not be able to generate tomatoes until Level 50!
After consulting Google, farm-merge-valley.fandom.com/wiki, reddit, and Facebook, this appears to be true for the game on platforms other than Pogo as well.
As for the two level 1 Tomato plants you get when you repair the truck, I suggest you delete (dig up) immediately to avoid having them in the way and taking up 2 spaces for a VERY long time, during which they are useless!
I don't understand why it is programmed this way, but the very least they could do is provide the information somewhere!