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This Problem

Not many plants challenge a gardener's perseverance as much as ferns. At one moment they’re full of life; soon after they look similar to dry brush left on a radiator. Fern leaves crisp up at the slightest sign of low humidity, and after they turn brown, many think it’s the end.

This Trick

Put the plant within a transparent bag – but leave it open as it requires some airflow – and set it in filtered yet ample light.

Houseplant Advice: why is there a chalky crust on my plant’s soil?

This Theory

This method creates a small greenhouse, trapping humidity near the plant. Consider it mimicking the tropical environment – the humid mini-environment where ferns flourish. It doesn’t water the plant for you, but it significantly reduces moisture loss and promotes delicate young leaves to open up.

The Test

I used this technique on a Boston fern that looked beyond saving. After 10 days in its humid enclosure the soil was still damp and tiny green curls began to appear. Within a few weeks, the plant was visibly fuller and greener.

The Verdict

This is not a instant solution and you may lose a few leaves along the way, but the bag trick can truly save a fern near death. For zero cost, it’s among the top successful resuscitation methods available.