Rescuing a Pinguicula from Its Plastic Cube

A gardener wrote in about a tiny Pinguicula purchased at Lowe's, trapped inside one of those notorious plastic "death cubes." They're trying to acclimate it alongside other carnivores—two North American pitcher plants and two lance-leaf sundews—in an orchid-growing area with 60–80% humidity. Every time the lid comes off, the butterwort droops dramatically, perking up only when the lid goes back on. The lower leaf tips show brown edges, and it's planted in the same sphagnum moss used for orchid mounts.

The Diagnosis

This is almost certainly Pinguicula primuliflora, a species that struggles in those sealed cubes. The high humidity inside weakens the leaves, making them dependent on the artificial environment. Your orchid-area humidity is actually perfect—the problem is the transition.

Radical but Effective Fix

Cut off every leaf except the central crown where new growth emerges. This sounds extreme, but it stops transpiration through those compromised leaves and forces the plant to push fresh, sturdy foliage adapted to your conditions. P. primuliflora is finicky even under ideal care, so don't be discouraged if it takes time.

Good Growing!
Jeff Dallas
Sarracenia Northwest
www.cobraplant.com