Drosera
Common Name(s):
- Phonetic Spelling
- DROSS-er-uh
- Description
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The sundews are one of the largest groups of carnivorous plants, with at least 250 species worldwide. They are members of the sundew family (Droseraceae). Their distribution is cosmopolitan, and the Southeastern USA has eight native taxa. The genus name is derived from the Greek word for “dewy” and refers to the glistening droplets of fluid borne on the glandular hairs of the leaves.
Cultivation is fairly easy for most species. Most species grow readily in a nutrient-poor, peat/sand mix, kept moist year-round, and in full sun in the ground or containers. Do not apply fertilizers and always use rainwater or distilled water for irrigation. Be sure to research which species is best for your area. Some species from South Africa and Australia require summer dormancy, which may be hard to provide in North Carolina, outside of a greenhouse.
Sundews are easily identifiable by their leaves, which may be spoon-shaped, strap-shaped or linear, and grow in a basal rosette. They can be green, yellow-green to red. Each leaf is covered with glandular hairs that exude a sticky, dew-like substance that persists throughout the day. This fluid attracts, traps and digests insects that land on the leaf. Flowers vary in color but are usually white to pink, and they open in the mornings on sunny days. These plants are found in bogs, fens, and marshes. They are listed as endangered or threatened in several states. Always buy nursery-raised plants; never buy plants extracted from the wild.
Sundews make marvelous additions to children’s gardens, native gardens, carnivorous plant gardens, rain and bog gardens. They grow well in containers or troughs. As species are small, grow them where they can be approached and appreciated up close. They are attractive curiosities that attract attention wherever they grow.
Insects, Diseases, and Other Plant Problems: No significant problems.
- See this plant in the following landscape:
- Juniper Level Botanic Garden: Bog Garden
- Cultivars / Varieties:
- Drosera capillaris, Drosera filiformis, Drosera intermedia, Drosera rotundifolia
- Tags:
- Cultivars / Varieties:
- Drosera capillaris, Drosera filiformis, Drosera intermedia, Drosera rotundifolia
- Tags:
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Attributes:
- Genus:
- Drosera
- Species:
- species
- Family:
- Droseraceae
- Uses (Ethnobotany):
- Sundews were used as medicinal herbs as early as the 12th century for coughs, bronchitis, whooping cough and asthma.
- Life Cycle:
- Annual
- Perennial
- Recommended Propagation Strategy:
- Seed
- Country Or Region Of Origin:
- Cosmopolitan
- Dimensions:
- Height: 0 ft. 1 in. - 0 ft. 6 in.
- Width: 0 ft. 1 in. - 0 ft. 6 in.
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Whole Plant Traits:
- Plant Type:
- Annual
- Carnivorous
- Herbaceous Perennial
- Native Plant
- Wildflower
- Woody Plant Leaf Characteristics:
- Deciduous
- Habit/Form:
- Erect
- Prostrate
- Maintenance:
- Medium
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- Soil Texture:
- High Organic Matter
- Sand
- Soil pH:
- Acid (<6.0)
- Soil Drainage:
- Moist
- Occasionally Wet
- Available Space To Plant:
- Less than 12 inches
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b
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Fruit:
- Fruit Color:
- Brown/Copper
- Fruit Type:
- Capsule
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Flowers:
- Flower Color:
- Pink
- Purple/Lavender
- White
- Flower Inflorescence:
- Head
- Flower Value To Gardener:
- Showy
- Flower Bloom Time:
- Fall
- Spring
- Summer
- Winter
- Flower Shape:
- Saucer
- Flower Petals:
- 4-5 petals/rays
- Flower Description:
- Small, various colored flowers on a 3- to 15-inch, smooth, slender stalk; flowers have five sepals, five stamens, five petals and a pistil with three styles
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Leaves:
- Woody Plant Leaf Characteristics:
- Deciduous
- Leaf Color:
- Gold/Yellow
- Green
- Red/Burgundy
- Leaf Feel:
- Glossy
- Leaf Value To Gardener:
- Showy
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Rosulate
- Leaf Shape:
- Filiform
- Linear
- Oblanceolate
- Obovate
- Orbicular
- Leaf Margin:
- Entire
- Hairs Present:
- Yes
- Leaf Length:
- 1-3 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- Basal rosette of leaves which unfurl to long leaves that are gland-tipped with hairs which exude little droplets of a sticky fluid to trap insects.
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Stem:
- Stem Is Aromatic:
- No
- Stem Buds:
- Hairy
- Stem Surface:
- Dull
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Landscape:
- Landscape Location:
- Container
- Houseplants
- Pond
- Riparian
- Landscape Theme:
- Children's Garden
- Native Garden
- Rain Garden
- Water Garden
- Design Feature:
- Specimen
- Resistance To Challenges:
- Poor Soil
- Wet Soil
