Watering schedule
How often to water Pink Sundew (Drosera capillaris) — the schedule
Also called pink sundew, hair-leaf sundew.
More about pink sundew
About Pink Sundew
Drosera capillaris · also called pink sundew, hair-leaf sundew · houseplant
Drosera capillaris is a small North American sundew native to wet coastal plain habitats from the southeastern United States through the Caribbean. It forms tight flat rosettes with spoon-shaped leaves bearing vivid red sticky tentacles and produces charming pink flowers on wiry scapes. It self-seeds freely and tolerates heat, making it an easy beginner carnivore.
Ideal humidity: 50-90%
The watering schedule, season by season
Pink Sundew is a bog plant adapted to nutrient-poor wet ground — it must sit in a tray of pure water and must never get tap water or fertiliser. The base rhythm for pink sundew is tray method, continuously wet, but the real interval moves with the season, the light and the pot — so treat the figures below as a starting point and always confirm with the plant itself.
- Spring & summer (active growth): Spring and summer: keep the pot standing in 1-2 cm of distilled or rainwater at all times; top the tray up as it is taken up.
- Autumn (slowing down): Autumn: lower the tray water level as growth slows and (for temperate species) dormancy approaches.
- Winter (rest / dormancy): Winter: keep just damp, not flooded — many temperate carnivores need a cool dormancy with far less water.
Maintain 1-2 cm of distilled, rainwater, or RO water in the tray at all times. Never allow the medium to dry; never use tap water. During cooler months reduce tray depth slightly but keep the medium moist throughout.
Want this turned into a live reminder that adjusts to your home and the weather? The Growli watering calculator takes your pot size, light and season and returns a starting interval for pink sundew in seconds.
How to tell pink sundew needs water
A calendar is the worst way to water pink sundew. Check the plant and the soil instead — for this species, look for these signals in order:
- The tray has run dry (during active growth it should rarely be empty).
- The peat-based medium feels dry rather than wet.
- Traps or pitchers shrivel or fail to form.
The most reliable single check is the first one on that list. When two signals agree, water; when they disagree, wait a day and look again — under-watering pink sundew for a day is almost always safer than over-watering it.
Overwatering vs underwatering pink sundew
The two failure modes can look alike at a glance, so check the soil weight and wetness before you decide. For pink sundew specifically:
Signs you are overwatering
- Blackening traps or pitchers from stagnant, warm, mineral-laden water.
- Rotting crown if kept warm and flooded through winter dormancy.
Signs you are underwatering
- Traps go limp and brown; pitchers dry up.
- The medium dries out and the plant collapses quickly.
Tap or bottled mineral water kills pink sundew. Its roots cannot handle dissolved minerals — only rain, distilled, or reverse-osmosis water will do.
Water quality notes
Only rainwater, distilled or reverse-osmosis water — never tap, mineral or softened water. This is the single most important rule for pink sundew.
Seasonal and environmental adjusters
Every figure above shifts with the conditions in your home. For pink sundew, the levers that matter most are:
- Bright light plus the water tray is the whole game — no fertiliser ever goes in the soil.
- In hot weather the tray empties fast; check it daily.
- Temperate species need a cooler, drier winter dormancy, not constant flooding.
Pot choice is part of this too — work out the right size with the pot size calculator, since a pot that is too big stays wet long enough to rot the roots of pink sundew.
Pink Sundew watering — frequently asked questions
How often should I water pink sundew?
Water pink sundew tray method, continuously wet. Spring and summer: keep the pot standing in 1-2 cm of distilled or rainwater at all times; top the tray up as it is taken up. Winter: keep just damp, not flooded — many temperate carnivores need a cool dormancy with far less water.
How do I know when pink sundew needs water?
The tray has run dry (during active growth it should rarely be empty). The peat-based medium feels dry rather than wet. Traps or pitchers shrivel or fail to form. The single most reliable test for pink sundew is the first signal on that list — checking the soil or the plant directly always beats watering by the calendar.
What does an overwatered pink sundew look like?
Blackening traps or pitchers from stagnant, warm, mineral-laden water. Rotting crown if kept warm and flooded through winter dormancy. Tap or bottled mineral water kills pink sundew. Its roots cannot handle dissolved minerals — only rain, distilled, or reverse-osmosis water will do.
What are the signs of an underwatered pink sundew?
Traps go limp and brown; pitchers dry up. The medium dries out and the plant collapses quickly.
Can I use tap water on pink sundew?
Only rainwater, distilled or reverse-osmosis water — never tap, mineral or softened water. This is the single most important rule for pink sundew.
Keep reading
- Watering pink sundew in the UK — hard vs soft tap water
- Pink Sundew care — the full brief (light, soil, humidity, problems, pet safety)
- Watering calculator — get a starting interval for your exact pot and light
- Pot size calculator — the right pot keeps watering forgiving
- Overwatered plant — signs and how to recover it
- Underwatered plant — signs and how to rehydrate it
- Why is my plant wilting? Wet vs dry diagnosis
- How often to water sempervivum 'killer'
- How often to water sempervivum 'pacific blue ice'
- How often to water sedum dasyphyllum
- All 6887 watering schedules in the Growli library