– Care instructions for a potted cactus
It’s strange how we live with plants yet have so little understanding of what they want. We use metaphors to visualize what we cannot see, what’s happening with them beneath the surface.
The “water like a thunderstorm” principle has two compelling components: 1) easy to do, and 2) endorsed by Mother Nature. But we should keep in mind that Mother Nature is usually not a nurturing parent. Ninety-five percent of species under her care have gone extinct. If one of her babies can’t make a go of it, her strategy is to produce a lot more babies. Or, if conditions are too harsh, she may give up and allow an environment to become a desert.
In contrast, members of the Cactus and Succulent Society of America are helicopter parents, hovering over their little ones. They advise against watering like a thunderstorm, because over-watering may “drown” the roots. This imagery helps us conceptualize the needs of plants as similar to our own: humans need water every day and air every minute. But there must be something not quite right about the “drowning roots” metaphor. Ask a hydroponic tomato.
Photo: Hydroponic onions, NASA/Wikipedia