plant-prison
Public‑garden glasshouses are basically minimum‑security facilities for foliage: plants doing time for the crime of being too interesting outdoors.
They sit there behind spotless panes, like leafy inmates waiting for parole, while gardeners stroll past acting as wardens with tiny scissors.
Every fern is on good‑behaviour watch.
A glasshouse pretends to be a sanctuary, but everyone knows it’s a botanical correctional centre.
