How to Grow Pampas Plume
iNaturalist
Pampas Plume
Erianthus ravennae (Erianthus ravennae)
grassPampas Plume is an ornamental grass characterized by tall, feathery silvery plumes that emerge in late summer and persist through fall. It forms dense clumps of arching foliage and reaches 6-8 feet in height with dramatic flowering displays. This perennial grass adds movement and texture to landscapes and is often used as a focal point or screening plant.
When should you plant Pampas Plume in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Pampas Plume timeline · Pittsburgh, PA (Zone 6b)
-
Plant Pampas Plume
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Pampas Plume
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Pampas Plume dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5b-10a; most vigorous in zones 6-9
Sign up free to see if Pampas Plume grows in your zone — and get a personalized planting timeline.
Get my Pampas Plume timeline →Growth Stages
Vegetative Growth
Spring through early summer (months 2-4 in first year)Clump expands, producing more arching blades; foliage may reach 3-4 feet by end of first season
Water regularly during dry spells. Remove any dead or diseased foliage. Begin tapering fertilizer in late summer. Apply 2-3 inch mulch layer for winter protection in colder zones.
Pre-flowering
2-3 weeksIn late summer (typically July-August), flowering stems begin to elongate from the center of the clump, emerging above foliage
Reduce nitrogen fertilizer to encourage flowering. Maintain consistent moisture. No pruning needed; allow stems to develop naturally.
Flowering & Plume Development
6-10 weeks (late August through October)Tall, feathery silvery-pink to white plumes emerge above foliage (6-8 feet tall), creating dramatic silhouettes; plumes are composed of fine, hair-like rachillae
Do not deadhead unless removing for arrangements. Plumes persist through fall and early winter. Enjoy ornamental display; minimal intervention needed.
Dormancy & Winter
November through FebruaryFoliage gradually browns and dies back; plumes remain standing, providing winter interest and seed dispersal
Cut back in late winter (February-March, before spring growth) to 6-12 inches above ground. Use sharp tools to prevent shredding. Remove all cut material. In zones 5-6, mulch around base for winter protection.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Ensure excellent drainage; avoid overwatering. Remove affected sections with sterile tools. Improve air circulation.
-
Remove affected foliage; thin clump for air circulation. Apply fungicide if severe. Most issues resolve with good drainage and air flow.
-
Relatively rare; spray with horticultural oil if found. Encourage natural predators.
-
Increase humidity and water spray. Treat with miticide if infestation is severe.
Uses
Landscape Focal Point
OrnamentalPampas Plume serves as a striking specimen plant or accent in gardens, reaching 6-8 feet with dramatic feathery plumes that create visual height and movement. [source]
Dried Flower Arrangements
HouseholdThe silvery plumes are prized for dried floral arrangements and bouquets, lasting many months indoors with proper drying and display. [source]
Wildlife Habitat
WildlifeDense clumps provide shelter and nesting sites for birds; seeds feed wildlife through winter months. [source]
Winter Garden Interest
CraftStanding plumes and foliage provide structural interest and visual appeal throughout fall and winter, adding architectural form to dormant landscapes. [source]
Screen or Windbreak
OrnamentalTall, dense growth habit makes Pampas Plume suitable for screening views, creating privacy barriers, or breaking wind patterns in gardens. [source]
Harvest Tips
Pampas Plume is ornamental; plumes can be cut for dried flower arrangements once fully developed and pluming is complete (typically September-October). Cut stems with sharp pruners, leaving 6-12 inches of stem base. Dry indoors in a cool, dark location for 2-3 weeks. Plumes naturally persist on plant through winter and can be harvested throughout the dormant season.
Fun Facts
- 🌱 Pampas Plume gets its name from its resemblance to the pampas grass of South America, though it is a distinct species native to Mediterranean regions.
- 🌱 The feathery plumes can reach heights of 8-10 feet in ideal conditions and will self-seed if conditions are right, making it important to deadhead if you wish to control spread.
- 🌱 In Victorian gardens, ornamental grasses like Pampas Plume were highly prized and featured prominently in designed landscapes as symbols of exotic beauty and elegance.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Pampas Plume planting timeline
Tell us your zip code and we'll calculate exactly when to start Pampas Plume seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Pampas Plume timeline →