The US version might be "you reap what you sow," which I like because crops produce more than what they were planted with.
Pick a venture that lets you get out more than you put in, eh?
Pick a venture that lets you get out more than you put in, eh?
"Reap what you sow" means you get output proportional to input. You'll get more biomass, but you won't get more plants than the amount of seeds you planted.