Where do sundews grow in the wild?

Sundews occur on nearly every continent, in habitats ranging from bogs and seepage areas to wet heaths, sandy ground and seasonally moist landscapes. Australia, southern Africa and South America contain especially diverse groups.

A broad distribution does not make every sundew adaptable to every climate. Some species live through cold winters, while others come from mild or tropical environments. Still others grow during a cool, wet season and rest through summer drought.

Why are sundews carnivorous?

Prey supplements scarce mineral nutrients. Sundews still make sugars through photosynthesis, so feeding cannot compensate for poor light. Their traps are an adaptation to habitat, not evidence that they can live on insects alone.

How do sundews catch and digest insects?

The leaf carries tentacles tipped with glands. Sticky mucilage holds small prey, and nearby tentacles can bend toward it. In some species the leaf also curls around a captured animal. Movement varies considerably among sundews, so a slow response is not automatically a sign of an unhealthy plant.

Unlike a Venus flytrap, a sundew does not rely on two hinged lobes snapping together. Both plants belong to Droseraceae, but their leaves use different capture mechanisms.

Sundew types: rosettes, Cape sundews & seasonal specialists

The genus includes annual and perennial plants. Flowers are usually carried above the sticky foliage, and tiny seeds can be difficult to see. A flower color or leaf shape alone is not always enough for identification; keep the plant’s label with it.

Darwin’s sundew experiments & botanical drawings

Charles Darwin used sundews to investigate how plants respond to stimulation and obtain nutrients from animal material. His Insectivorous Plants, first published in 1875, helped establish carnivory as a real botanical process rather than a curiosity.

This drawing shows a leaf of the round-leaved sundew, Drosera rotundifolia. Notice the long tentacles around its edge and the smaller glands toward the center. The illustration depicts one species; a Cape sundew’s strap-like leaf would look quite different.

Looking closely at live plants is just as rewarding. Angled light makes the droplets easier to see, and changes in the positions of tentacles reveal movement that can otherwise seem too slow to notice.

Sundew care: light, water & growing medium

Choose propagated plants and leave wild sundews in place. Protecting the wet ground and seasonal water patterns of their habitats matters as much as protecting the plants themselves. For potting and watering instructions, continue to our care guides.

Common questions about sundews