Threadleaf Sundew

Threadleaf Sundew Plant Information

Threadleaf Sundew grows in the following 16 states:

Connecticut, Georgia, Maryland, Mississippi, North Carolina, Pennsylvania, Alabama, California, Delaware, Florida, Louisiana, Massachusetts, New Jersey, New York, Rhode Island, Texas

Drosera filiformis, commonly known as the thread-leaved sundew, is a small, insectivorous, rosette-forming species of perennial herb. A species of sundew, it is unusual within its genus in that the long, erect, filiform (thread-like) leaves of this plant unroll in spirals - an arrangement similar to the circinate vernation seen in ferns.

D. filiformis occurs naturally in both Canada and the United States; its natural range extends down the eastern seaboard of North America from south western Nova Scotia in the north down through New England to Florida and Louisiana in the south.
D. filiformis is frequently cultivated, with several registered cultivars, such as D. filiformis var. filiformis (also known as D. filiformis typical), D. filiformis var. tracyi (a taller plant, with clear, instead of red, tentacles), D. filiformis 'California Sunset' (a hybrid between D. filiformis var. filiformis and D. filiformis var. tracyi), and D. filiformis 'Florida All Red' (a variety that becomes red in full sun, and does not require hibernation in winter). All of these cultivars are grown with similar conditions as most other Drosera species: mineral-poor soil and distilled, reverse osmosis, or collected rain water. All types of D. filiformis other than 'Florida All Red' require a winter dormancy for long-term survival, forming hibernacula in the winter.

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