Drop a seed like Captain Planet and The Planeteers
Either a promise to impregnate you, or a more metaphorical promise to implant knowledge within you that will grow over time. Given the preceding and following lines, I think the former is the better explanation.
CP&P was a gang of teenagers from across the world who fought ecological crime, and could combine the powers of their magical rings to summon Captain Planet, a nearly omnipotent superhero. They “dropped seeds” in that they fought for the environment, and probably planted the occasional tree.
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