Common Reed Plant Care
Phragmites australis subsp. americanus Saltonst., P.M.Peterson & Soreng
Updated · Sources · How we source care data
This plant is easily recognized by its tall, feathery plumes of flowering spikes that can reach up to 15 feet in height. Originally from North America, it thrives in wetland habitats and is a favorite among plant collectors for its striking appearance and ability to attract wildlife.
Every 1–3 days
Full sun to part shade
50–90°F
40–70%
At a glance
How do you care for Common Reed?
Water Common Reed every 1–3 days, letting the top layer of soil dry out between waterings, and give it full sun to part shade. It prefers temperatures of 50–90°F (10–32°C) and 40–70% humidity. Fertilize it every month during the growing season.
Where Is the Common Reed Native To?
What Is the Common Reed?
Common Reed (Phragmites australis subsp. americanus) belongs to the Poaceae family within the Phragmites genus. Common Reed is native to North America. Common Reed is also known as Giant Reed, Water Reed, Reed Grass.
Common Reed displays a tall, dense grass growth habit, reaching up to 10 ft tall with a spread of approximately 3 ft. Common Reed produces feathery, purple-brown inflorescence.
Leaf size: approximately 24 inches.
How Often Should You Water a Common Reed?
Phragmites australis subsp. americanus requires watering every 1–3 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 1–3 days
Let soil partially dry between waterings
What Light Does the Common Reed Need?
Common Reed thrives in full sun to part shade.
Light Requirement
Full sun to part shade
What Temperature and Humidity Does the Common Reed Prefer?
Phragmites australis subsp. americanus grows best at temperatures of 50–90°F. Common Reed prefers humidity levels of 40–70%.
Temperature
50–90°F
Humidity
40–70%
What Soil Mix Works Best for a Common Reed?
Moist to wet, fertile soil with high organic content. Good drainage is essential for Common Reed to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Common Reed?
Feed Common Reed every month 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 month
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 Reed?
Does not require repotting. 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 Reed?
Common Reed can be propagated through division, rhizome cuttings. Similar propagation techniques also apply to common reed plant care, which shares the same genus.
Is the Common Reed Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Common Reed, 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 Reed?
Common Reed is susceptible to no common pests. 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 Reed Need?
Common Reed grows outdoors in USDA Zone 3a – 10b. It survives winters down to planting zone 3a. Common Reed is native to North America.
Hardiness Zone
Zone 3a – 10b
Keep exploring plants
Common Reed 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 Phragmites genus — compare its care with other Phragmites species on PlantoScan.
Phragmites is part of the Poaceae plant family — browse all Poaceae genera and species.
Common Reed 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: Phragmites australis subsp. americanus Saltonst., P.M.Peterson & Soreng, family Poaceae (first published in Sida 21: 690 (2004)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Common Reed, 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 3a – 10b, estimated from the plant's typical growing conditions.
- 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
Common Reed 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