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PlantFiles: Round Leaved Sundew
Drosera rotundifolia

 
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Family: Droseraceae
Genus: Drosera (DROSS-er-uh) (Info)
Species: rotundifolia (ro-tun-dih-FOH-lee-uh) (Info)

2 members have or want this plant for trade.

Category:
Perennials
Ponds and Aquatics
Carnivorous and Insectivorous

Height:
under 6 in. (15 cm)

Spacing:
6-9 in. (15-22 cm)

Hardiness:
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Sun Exposure:
Full Sun

Danger:
N/A

Bloom Color:
White/Near White

Bloom Time:
Mid Summer

Foliage:
Grown for foliage
Evergreen
Burgundy

Other details:
This plant is suitable for growing indoors
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens
This plant may be considered a protected species; check before digging or gathering seeds

Soil pH requirements:
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

By Baa
Thumbnail #1 of Drosera rotundifolia by Baa

By Baa
Thumbnail #2 of Drosera rotundifolia by Baa

By kennedyh
Thumbnail #3 of Drosera rotundifolia by kennedyh

By Evert
Thumbnail #4 of Drosera rotundifolia by Evert

By Equilibrium
Thumbnail #5 of Drosera rotundifolia by Equilibrium

By kennedyh
Thumbnail #6 of Drosera rotundifolia by kennedyh

By kennedyh
Thumbnail #7 of Drosera rotundifolia by kennedyh

Profile:

1 positive
2 neutrals
No negatives

Gardeners' Notes:

RatingAuthorComment
Neutral raisedbedbob On Feb 13, 2006, raisedbedbob from Valley Lee, MD
(Zone 7a) wrote:

According to the Peterson Guide to Medicinal Plants, traditionaly, a tea or tincture was used to treat dry, spasmodic coughs, asthsma and bronchitis. Also used as an aphrodisiac. Poultices used to treat warts and corns.

Positive EmperorDragon On Oct 23, 2005, EmperorDragon from Elk Grove, CA
(Zone 9b) wrote:

This plant grows best outside in a bog garden.

Neutral Baa On Jun 22, 2002, Baa wrote:

An insectivorous, short lived perennial from all over the Northern Hemisphere and sometimes found in parts of South Africa and South America.

Has spoon shaped, pale green leaves covered in red hairs which sport a sticky substance on the tip. The sticky substance is used to attract and trap insects. Once the insect is caught the leaf then folds itself around the creature to digest it. Bears a slim flower spike with 2-15, white, 5 petalled, saucer shaped flowers which open in succession.

Flowers July-September

Needs a constantly moist, acid, nutrient deficient soil in full sun. It will not tolerate dry soil for more than a couple of days nor will it survive shading for any length of time. Water should be rain water if possible, it will struggle if there is any lime in the soil or water. If using tap water, boil it a couple of times and let it go cold before watering the plants, this isn't ideal but it's not always easy to get rain water. Do not use a fertilizer at any point, they do not require it.

If kept indoors, keep the pot in a deep saucer which is filled with water at all times.

During a cold winter the leaves may hibernate by rolling up, the older leaves will probably die off at this point leaving the younger leaves in tight buds.

The leaves were once used to curdle cheese in Sweden and also to treat warts. There is also a possibility that they may be reasonably effective in treating respiritory diseases.

Very easy to grow and interesting plant.

Regional...

This plant has been said to grow in the following regions:

Erie, Michigan
Saint Helen, Michigan
Seattle, Washington



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