Common Blowngrass Plant Care
Lachnagrostis filiformis (G.Forst.) Trin.
Updated · Sources · How we source care data
Lachnagrostis filiformis is a species of grass known by the common names Pacific bent grass, New Zealand wind grass, fairy grass, or blown-grass.
Every 7–14 days
Full sun to partial shade
60–80°F
40–70%
At a glance
How do you care for Common Blowngrass?
Water Common Blowngrass every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–80°F (16–27°C) and 40–70% humidity. Fertilize it every 8 months during the growing season.
What Is the Common Blowngrass?
Common Blowngrass (Lachnagrostis filiformis) belongs to the Poaceae family within the Lachnagrostis genus. Common Blowngrass is also known as Ticklegrass.
Common Blowngrass displays a tall, clumping grass growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Common Blowngrass produces small inconspicuous flowers on slender stalks.
Leaf size: approximately 12 inches.
How Often Should You Water a Common Blowngrass?
Lachnagrostis filiformis requires watering every 7–14 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 7–14 days
Let soil partially dry between waterings
What Light Does the Common Blowngrass Need?
Common Blowngrass thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Common Blowngrass Prefer?
Lachnagrostis filiformis grows best at temperatures of 60–80°F. Common Blowngrass prefers humidity levels of 40–70%.
Temperature
60–80°F
Humidity
40–70%
What Soil Mix Works Best for a Common Blowngrass?
Well-draining sandy loam with good organic content. Good drainage is essential for Common Blowngrass to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Common Blowngrass?
Feed Common Blowngrass every 8 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 8 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 Common Blowngrass?
Divide clumps 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 Common Blowngrass?
Common Blowngrass can be propagated through division, seed sowing. Similar propagation techniques also apply to lachnagrostis billardierei plant care, which shares the same genus.
Is the Common Blowngrass Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Common Blowngrass, 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 Common Blowngrass?
Common Blowngrass is susceptible to aphids, grasshoppers, cutworms. 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 Common Blowngrass Need?
Common Blowngrass grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Common Blowngrass as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Common Blowngrass 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 Lachnagrostis genus (family Poaceae) — search all Lachnagrostis species in the plant lookup.
Common Blowngrass thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Lachnagrostis filiformis (G.Forst.) Trin., family Poaceae (first published in Fund. Agrost. : 128 (1820)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Common Blowngrass, 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 13a, 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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