Ferns reproduce using spores rather than seeds, releasing them from small clusters on the undersides of fronds.

The longer version

Ferns follow a two-stage life cycle that seeds never use. The visible plant produces spores in small clustered cases on the underside of its fronds, and when these dry out they split and flick the dust-like grains into the air.

A spore landing in damp shelter does not grow into a fern straight away. It becomes a tiny flat green structure that produces eggs and sperm, and fertilisation needs a film of water for the sperm to swim through. Only after that does the familiar leafy plant begin to develop. Because that middle stage needs standing water, ferns are most common in damp and shaded places.

Where this entry sits

Plants and Trees gathers ordinary and surprising details about how green things live, from the tallest forest giants down to the moss on a garden wall. Expect notes on flowers, seeds, roots, leaves, fungi, and the quiet tricks plants use to spread and survive. The full list sits on the Plants and Trees page, where every entry is listed in order.