Feather Reed Grass | Calamagrostis x acutiflora 'Karl Foerster'

Feather Reed Grass | Calamagrostis x acutiflora 'Karl Foerster'
A boldly upright, award-winning cool-season grass with narrow green foliage and towering golden-tan plumes that sway gracefully in the breeze—delivering four seasons of architectural presence with minimal care.

Plant Highlights

• Type: Perennial ornamental grass / Strongly upright habit
• Light: Full sun to part shade
• Water: Occasional; tolerates both dry and moist conditions once established
• Temperature: Zones 4–9 / Cold and heat tolerant
• Growth: 4–5 ft tall (plumes to 6 ft), 18–24 in wide / Moderate growth rate
• Pet Safe: Yes—considered pet friendly
• Origin: Botanical name: Calamagrostis x acutiflora 'Karl Foerster' | Award: 2001 Perennial Grass of the Year

Why You'll Love It

• Narrow, strongly upright form stays tidy all season—golden-yellow plumes shoot up to 6 feet in early summer, then mature to warm tan and persist through winter for year-round structure
• Nicknamed “motion grass” for good reason—even the slightest breeze sets the plumes dancing, adding life and movement to any planting
• Deer resistant and widely adaptable to soil types, sun levels, and moisture conditions—one of the most versatile and reliable ornamental grasses available

Care Tips

• Cut old foliage down to several inches above the ground in early spring before fresh growth emerges—leave stems standing through winter for seasonal structure and wildlife interest
• Feed in early spring with a slow-release fertilizer (18-5-10) for maximum growth and plant health
• Plant in full sun to part shade with well-drained soil; tolerates dry or moist conditions once established and adapts to a wide range of soil types

Shipping

• Ships within 1–3 business days
• Carefully packed to protect roots and foliage in transit
• Weather holds may apply during extreme heat (95°F+) or cold (34°F and below)

Frequently Asked Questions

How tall does Karl Foerster Feather Reed Grass grow?
It typically reaches 4–5 feet tall and 18–24 inches wide, with upright flower plumes approaching 6 feet. It maintains a narrow, tidy form throughout the season.

Where should it be planted?
Full sun to partial shade in zones 4–9. It tolerates many soil types and handles both dry and moist conditions once established, though well-drained soil is ideal.

When should it be cut back?
Cut old foliage down in early spring before fresh growth emerges. Leaving stems standing through winter provides seasonal structure; trim to several inches above the ground to make room for new growth.