Plant Care Thread-Leaved Sundew

Thread-Leaved Sundew

About Thread-Leaved Sundew

Thread-Leaved Sundew is a relatively rare houseplant 🌿 that is a fun challenge to grow and needs lots of water to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

Thread-Leaved Sundew likes soil that is well draining.

Thread-Leaved Sundew belongs to the Drosera genus, and is native to Nova Scotia to the Eastern United States.


Drosera filiformis

Also known as

Threadleaf Sundew and Filiformis

How to care for Thread-Leaved Sundew

💦 Water

How often to water your Thread-Leaved Sundew

Water needs for Thread-Leaved Sundew
0.5 cups
every 7

Thread-Leaved Sundew needs 0.5 cups of water every 7 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Thread-Leaved Sundew

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size

☀️ Light

Finding light for Thread-Leaved Sundew in your home

Light needs and placement for plant Thread-Leaved Sundew: 1ft from a window
1ft or less from
a window

Thread-Leaved Sundew love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Thread-Leaved Sundew does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Thread-Leaved Sundew in your home 🏡.

🪴 Nutrients

How to fertilize Thread-Leaved Sundew

Nutrient, fertilizer, and repotting needs for Thread-Leaved Sundew: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Thread-Leaved Sundew after it doubles in size or once a year—whichever comes first.

Browse #ThreadLeavedSundew
💡 FAQs
⭐ Difficulty Level

Thread-Leaved Sundew can be challenging to care for, according to some plant parents. Check out the reviews down below to learn from their experiences!

Benefits of Growing Thread-Leaved Sundew →

Common Thread-Leaved Sundew Problems →

💦 Water Needs

Thread-Leaved Sundew is sensitive to dry soil and should be watered frequently. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Thread-Leaved Sundew Water Frequency →

Thread-Leaved Sundew Root Rot →

☀️ Sunlight Needs

Thread-Leaved Sundew requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

Thread-Leaved Sundew Light Requirements →

Thread-Leaved Sundew Direct Sunlight Needs & Tolerance →

🐶 🐈 👶 Toxicity

Greg does not have confirmed data on this plant’s toxicity. If you, a family member, or a pet consumes plant material of unknown toxicity, it’s always best to consult a medical professional.

If you or someone else ingested this plant, call Poison Control at US (800) 222-1222. If a pet consumed this plant, contact your veterinarian or the ASPCA at US (888) 426-4435.

🪴 Soil

Thread-Leaved Sundew does best in well-draining soil. A good soil will contain lots of organic matter such as coco coir as well as perlite or vermiculite to help with drainage. Adding a handful of perlite to regular store-bought potting soil should do the trick!

Best Soil Mix for Thread-Leaved Sundew →

When and How to Successfully Repot Thread-Leaved Sundew →

⬆️ ⬇️ Growth Pattern

Thread-Leaved Sundew grows vertically and new growth will emerge from the top of the plant.

How and When to Prune Thread-Leaved Sundew →

🌦️ Growing Outdoors

USDA Hardiness Zone
Thread-Leaved Sundew can be grown outdoors in USDA Hardiness Zones 7a-8b. Find your local hardiness zone here.

Thread-Leaved Sundew Temperature Tolerance →

🌱 Propagation

Thread-Leaved Sundew can be propagated by division into new individual plants.

  • Check to see if there is more than one plant. In some cases they may still be beneath the soil surface. If you feel confident, you may remove the soil to check for baby plantlets below!
  • If there are multiple plants growing, unpot the plant and gently tug the plants apart, being careful not to disturb too many of the roots. They may be connected by large root segments which you may need to break to free the plantlet.
  • Pot up the new plant in well-draining soil
  • Repot the parent plant back into its original pot

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.

Care Summary for Thread-Leaved Sundew

Thread-Leaved Sundew

Thread-Leaved Sundew

Greg recommends:


0.5 cups every 7 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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