Plants know when they are in a loving environment and do not respond to threats, don't believe me, read the book, "
Secret Life of Plants." Most plants originate from the rain forest, their own loving, caring environment, without any assistance from humans. Once we bring them into our home environment, as ACSAPA says, "plants growing from being loved is more cause and effect", than anything else. Just give them the care they need, the care that nature provided for them when they lived on their own, that's all the care they need when in our human space. If Pat actually "threatened her Rubber Tree Plant", with scissors or a knife, the opposite would have been true, rather than grow, it could have wilted, but the care that it was given - water, light, etc., is what caused it to respond, not violence. No other species actually understands or responds well to human violence, except other humans ..