Drosera capillaris is a small American sundew whose rounded, spoon-like traps can form green, red or mixed-colour rosettes. Its common name, pink sundew, points toward the flowers rather than a compulsory leaf colour. For growers, its appeal lies in a compact display and a life cycle that can be followed readily from seed to flowering plant.
Recognising the pink sundew
The Flora of North America accepts Drosera capillaris Poir. and describes a rosette with distinct leaf stalks, broadly spoon-shaped blades and largely hairless flower stalks. Flowers are usually pink, but white occurs. Most rosettes are small, although some Gulf Coast populations produce plants reaching about 12 cm across. Flora of North America.
A small plant can resemble D. brevifolia. The genus key separates them partly by the glandular flower stalk of brevifolia and differences in stipules and seed surfaces. D. rotundifolia is another possible source of confusion when the blade appears nearly round. Do not let one common name or one leaf photograph replace the full combination of characters. North American identification key.
Range and wetland setting
The North American flora places the species in sandy pinelands, savannas, seepage slopes, bog margins and wet ditches. Its range continues through Mexico and the Caribbean into Central and South America. It is particularly familiar in open southern North American wetlands, including fire-maintained landscapes.
A first-hand account of the Croatan region documents capillaris beside brevifolia in moist depressions within pine savanna. Such observations help explain why close neighbours can be confused, while also showing that the collection's two separate labels can correspond to plants sharing one landscape. Croatan field account.
Habitat association is not a recommendation to burn a potted collection. Ecological processes operate across whole sites; practical container care needs its own evidence.
Light, water and seasonal behaviour
North Carolina State Extension recommends a moist, low-nutrient medium and rainwater or distilled water. It describes stronger red coloration under bright light and continued growth in a warm, bright protected position. Plants tolerate some mild cold but should not be treated as dependable survivors of prolonged hard freezing. NC State cultivation account.
Dan DiPietro reports growing capillaris alongside subtropical sundews without imposing dormancy. He describes successful tray culture and seed propagation, with both peat- and sphagnum-based media used in his collection. These observations support a practical starting point while leaving room for accession and climate differences. Grower's cultivation notes.
For an Australian collection, assess heat and light separately. A bright position can also overheat a small pot. If growth deteriorates, note the condition of the centre, changes in exposure and whether the medium has dried before making several simultaneous adjustments. Leaf colour alone is not a complete health assessment.
Seed renewal and longevity
The flora records plants often behaving as annuals, while NC State describes annual or short-lived perennial growth and recommends saving seed when a flowering plant declines. These descriptions need not conflict: life span can vary with conditions, and a seed-grown succession can maintain a population after individual plants finish.
Label the seed parent before harvest. Separate seed lots from different localities or selections and record whether pollination was controlled. If volunteer seedlings appear in another pot, treat their identity as unconfirmed until it is established; proximity to a named parent is useful context, not a pedigree.
Large size, long petioles or an unusual colour should initially remain observations. They do not automatically create a botanical variety or establish hybrid parentage. A useful accession record can simply say what was received and what has been observed, without stretching those facts into a formal name.
This small sundew rewards that attention. A sequence of rosette, flowers, capsules and seedlings reveals much more of the plant than a single photograph of its sticky leaves.
Nano Nursery Drosera Encyclopedia — species profile. Related core chapters: 24 and 29. Reviewed 23 September 2026. Cultivation guidance concerns established plants; recently deflasked plants need separate acclimatisation.
