A bad seed produces a bad tree and in due course bad fruit, and a good seed produces a good tree and good fruit.

In families that insist the child is different, the myth that prevails and perpetuates is the "bad seed theory." This becomes easier for families to do when the kids behave poorly and the only information they receive about the biological family are its problems and dysfunction

"Listen, some people just come from bad seed." Mr. Heath shook his head. ... "If Ian is from bad seed, though, is from the mother, not the father

if you’re looking to turn out all the lights, pull a blanket up under your chin, and jump several inches off your couch, there’s a new bad-seed thriller to adopt today.

Bad seed

Meaning

Noun