Drosera filiformis

(90 reviews)

This sundew has long thread-like leaves, which gives this plant its common name, dewthread. Long thin leaves slowly rise, standing tall and proud. Small drops of nectar glisten ever so slightly, reflecting the sun's rays and enticing insects to taste its sweet offerings. By the end of summers, the plant is flecked with trophies of its conquests. In winter, the plant will die back and form a resting bud sitting at soil level. Growth will resume in mid-spring.

Type of Plant: Outdoor perennial for container growing.
Leaves: Up to 8 inches at maturity.
Sunlight: Partial to full sun during the growing season.
Water: Low-mineral water (50 ppm or less).
Soil: Equal parts peat moss and perlite only.
Winter: Dormant. Minimal protection in USDA zones 7-9. Mulch in colder regions.

• Acclimated for outdoor growing.
• Shipped in a 3-inch pot. Care instructions are included.

Photos illustrate summer growth. Leaves may not be present during other seasons. See below for more information.

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Plants are grown outdoors at our nursery in Oregon and experience seasonal changes.

January-March: Plant is dormant in a resting bud state.
April: Spring growth will appear by the end of the month.
May: More leaves appear, but not yet full size.
June-August: Full display of dewy leaves.
September-October: Dormancy begins. Plant drops its leaves. Growth resumes in spring.
November-December: Plant is dormant in a resting bud state.



  • 5
    Amazing plant

    Posted by Jesse on July 16, 2024

    The plant first arrived looking bare, but within hours it was starting to get all dewy once more, since then the plant has started to flower and produce some seeds. Overall a very worthy purchase.

  • 5
    Can catch some serious amount of bugs

    Posted by Joe on July 15, 2024

    Arrived intact and in good shape. Started producing dew and new leaves immediately and has been ever since

  • 5
    Drosera filiformis

    Posted by Cole Abbott on June 30, 2024

    My order shipped quickly and was very well packaged! It immediately started producing dew as soon as I put it outside, and it’s one of the best bug catchers out of all of my carnivorous plants. It’s also flowered twice already!

  • 5
    Growing like weeds

    Posted by Shannon Phillips on June 22, 2024

    Growing great in my planter in full sunlight

  • 5
    love it!

    Posted by chris on June 21, 2024

    I had given up on carnivorous plants, then I came across Sarracenia Northwest on YouTube, thank goodness! My plants arrived packed with care and came with written instructions! Will definately purchase from them again!

  • 5
    Thread leaf sundew

    Posted by Vincent Kelp on June 9, 2024

    After one month these plants have doubled in size with leaves that are littered with trophies. These plants are pushing multiple flower stocks each that will open soon. Note; living on the east coast with plenty of humidity I use water from a dehumidifier with TDS in the 20's.

  • 5
    Drosera Filiformis

    Posted by Kris on May 20, 2024

    Plant came in excellent condition, and was packaged very well. I especially liked the instructions that were sent with the plant. It's currently thriving with my other Drosera ?

  • 5
    Healthy and hardy

    Posted by Logan S on May 9, 2024

    Arrived in a healthy dormant state. I was able to plant it out in the bog immediately and it woke up like nothing had happened as soon as it warmed up. This plant was better acclimated than other nurseries i've purchased from.

  • 5

    Posted by Kevin Zaknich on April 4, 2024

    Plant arrived in great shape. Thriving in my backyard. Excited to see it grow.

  • 5
    Drosera filiformis

    Posted by Meg Strauss on August 7, 2023

    This was my first hardy sundew and I fell in love with it the moment I took it out of the box. It was very healthy and looked like I just picked it up from the nursery. It has grown a lot the past few weeks and has gone to town on the gnats in my yard.

  • 5
    Drosera filiformis

    Posted by Virginia Benedict on August 2, 2023

    She just finished flowering beautiful delicately pink little flowers that brought us lots of joy. She seems to be enjoing the south facing sunny window she shares with other carnivorous and suculent plants. Thank you for making sure that your plants are doing well in my home.

  • 5
    D. filiformis

    Posted by DONALD ALLEN on July 29, 2023

    As usual a beautiful plant from SNW. Same terrific packing job they always do. I already have a Drosera multifida extrema on the way from them.