Knotted Pearlwort Plant Care
Sagina nodosa (L.) Fenzl
Updated · Sources · How we source care data
Sagina nodosa, the knotted pearlwort, is a species in the genus Sagina, native to northern Europe. It is a low-growing plant up to 15 cm tall, with paired leaves up to 1 cm long.
Every 2–3 days
Full sun to part shade
50–75°F
40–70%
At a glance
How do you care for Knotted Pearlwort?
Water Knotted Pearlwort every 2–3 days, letting the top layer of soil dry out between waterings, and give it full sun to part shade. It prefers temperatures of 50–75°F (10–24°C) and 40–70% humidity.
Where Is the Knotted Pearlwort Native To?
What Is the Knotted Pearlwort?
Knotted Pearlwort (Sagina nodosa) belongs to the Caryophyllaceae family within the Sagina genus. Knotted Pearlwort is native to northern Europe. Knotted Pearlwort is also known as Bird's-eye.
Knotted Pearlwort displays a low mat-forming ground cover growth habit, reaching up to 0.1 ft tall with a spread of approximately 0.5 ft. Knotted Pearlwort produces small white flowers in clusters.
Leaf size: approximately 0.5 inches.
How Often Should You Water a Knotted Pearlwort?
Sagina nodosa requires watering every 2–3 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 2–3 days
Let soil partially dry between waterings
What Light Does the Knotted Pearlwort Need?
Knotted Pearlwort thrives in full sun to part shade.
Light Requirement
Full sun to part shade
What Temperature and Humidity Does the Knotted Pearlwort Prefer?
Sagina nodosa grows best at temperatures of 50–75°F. Knotted Pearlwort prefers humidity levels of 40–70%.
Temperature
50–75°F
Humidity
40–70%
What Soil Mix Works Best for a Knotted Pearlwort?
Moist, well-draining soil with high organic content. Good drainage is essential for Knotted Pearlwort to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Knotted Pearlwort?
Divide and replant every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Knotted Pearlwort?
Knotted Pearlwort can be propagated through seeds, division. Similar propagation techniques also apply to pearlwort plant care, which shares the same genus.
Is the Knotted Pearlwort Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Knotted Pearlwort, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Knotted Pearlwort?
Knotted Pearlwort is susceptible to aphids, slugs, snails. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Knotted Pearlwort Need?
Knotted Pearlwort grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Knotted Pearlwort is native to northern Europe. In cooler regions, grow Knotted Pearlwort as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Knotted Pearlwort is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Sagina genus — compare its care with other Sagina species on PlantoScan.
Sagina is part of the Caryophyllaceae plant family — browse all Caryophyllaceae genera and species.
Knotted Pearlwort thrives in bright light and direct sun — see other bright-light plants.
More Sagina Species
Other Sagina species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Sagina nodosa (L.) Fenzl, family Caryophyllaceae (first published in Vers. Darstell. Alsin. 18 1833) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Knotted Pearlwort, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
Identify Plants Like the
Knotted Pearlwort Instantly
Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.
Free
to download
iOS & Android
platforms
Light & dark
mode
100,000+
species