Smooth Scouring Rush Plant Care
Equisetum laevigatum A.Braun
Updated · Sources · How we source care data
Equisetum laevigatum is a species of horsetail in the family Equisetaceae. It is known by the common names smooth horsetail and smooth scouring rush.
Every 3–7 days
Partial to full shade
50–75°F
60–80%
At a glance
How do you care for Smooth Scouring Rush?
Water Smooth Scouring Rush every 3–7 days, letting the top layer of soil dry out between waterings, and give it partial to full shade. It prefers temperatures of 50–75°F (10–24°C) and 60–80% humidity. Fertilize it every 6 months during the growing season.
Where Is the Smooth Scouring Rush Native To?
What Is the Smooth Scouring Rush?
Smooth Scouring Rush (Equisetum laevigatum) belongs to the Equisetaceae family within the Equisetum genus. Smooth Scouring Rush is native to much of North America except for northern Canada and southern Mexico. Smooth Scouring Rush is also known as Scouring Rush, Horsetail.
Smooth Scouring Rush displays an upright, bushy growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Smooth Scouring Rush produces non-flowering.
Leaf size: approximately 12 inches.
How Often Should You Water a Smooth Scouring Rush?
Equisetum laevigatum requires watering every 3–7 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 3–7 days
Let soil partially dry between waterings
What Light Does the Smooth Scouring Rush Need?
Smooth Scouring Rush thrives in partial to full shade. The optimal light range is 100–500 lux. Avoid placing Smooth Scouring Rush in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Partial to full shade
100–500 lux
What Temperature and Humidity Does the Smooth Scouring Rush Prefer?
Equisetum laevigatum grows best at temperatures of 50–75°F. Smooth Scouring Rush prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
50–75°F
Humidity
60–80%
What Soil Mix Works Best for a Smooth Scouring Rush?
Moist, sandy soil with good drainage. Good drainage is essential for Smooth Scouring Rush to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Smooth Scouring Rush?
Feed Smooth Scouring Rush every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Smooth Scouring Rush?
Repot every 1-2 years. 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 Smooth Scouring Rush?
Smooth Scouring Rush can be propagated through division, spores. Similar propagation techniques also apply to water horsetail plant care, which shares the same genus.
Is the Smooth Scouring Rush Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Smooth Scouring Rush, 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 Smooth Scouring Rush?
Smooth Scouring Rush is susceptible to aphids, scale insects. 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 Smooth Scouring Rush Need?
Smooth Scouring Rush grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Smooth Scouring Rush is native to much of North America except for northern Canada and southern Mexico. In cooler regions, grow Smooth Scouring Rush as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Smooth Scouring Rush 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 Equisetum genus — compare its care with other Equisetum species on PlantoScan.
Equisetum is part of the Equisetaceae plant family — browse all Equisetaceae genera and species.
Smooth Scouring Rush copes with lower light than most plants — browse the full list of low-light plants.
More Equisetum Species
Other Equisetum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Equisetum laevigatum A.Braun, family Equisetaceae (first published in Amer. J. Sci. Arts 46: 87 (1844)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Smooth Scouring Rush, 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.
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