Carnivorous plants live in boggy ground where soil is poor, so they catch insects to supplement their diet.

The longer version

Boggy ground holds plenty of water but very few usable nutrients, because constant wetness and acidity slow decay and lock what little nitrogen and phosphorus exist into forms plants struggle to take up.

Trapping animals supplies those missing elements directly. Prey is broken down by enzymes or by bacteria living in the trap, and the nitrogen released goes into leaves and flowers. The strategy costs energy, since traps are elaborate structures, so it pays off only where ordinary roots cannot get enough from the soil. Carnivorous species still photosynthesise, so insects supply what the soil lacks rather than replacing food entirely.

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.