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The Issue

Not many plants challenge a gardener's perseverance as much as ferns. One day they’re full of life; the next they appear similar to tumbleweed left on a radiator. Fern leaves dry out at the slightest sign of low humidity, and once they turn brown, most assume it’s the end.

The Trick

Place the fern inside a transparent bag – however leave it open as it still needs some airflow – and position it in bright but indirect light.

Indoor Plant Clinic: why is there a white layer on my potting mix?

This Explanation

The bag forms a small greenhouse, trapping humidity near the plant. Consider it recreating the rainforest atmosphere – the moist mini-environment where ferns flourish. This won't water the plant for you, but it significantly reduces moisture loss and promotes fragile young leaves to open up.

The Experiment

I used this trick on a Boston fern that seemed beyond saving. After 10 days in its misty cocoon the soil was still damp and tiny green curls began to appear. By the end of the month, the plant was noticeably fuller and greener.

This Verdict

This isn’t a miracle cure and some fronds might drop some fronds along the way, but the bag trick can genuinely save a fern near death. At no expense, it’s one of the most successful revival techniques available.