Last year I started my tomatoe plants from a slice of tomatoe that I purchased in the grocery store! I was skeptical at first, but they grew. I would change it a little now, but if them darn groundhogs didn't eat my garden, I would have many tomatoes on that plant.
Funny I bought 6 plants...and the one that I started from a slice was my "baby"
Reminds me of that saying, Only God knows how many apples in a seed!"