Karl Foerster Feather Reed Grass
Calamagrostis acutiflora
kal-uh-mag-ROS-tiss
Perennials: Ornamental grass
Zone
4: -30° to -20°
Min. Temp
Frost Tolerant: 24°
This grass performs well in a wide range of climates, remains attractive for months on end, and is not invasive in any way. Clumps are strongly upright, with dark green leaves. Soft feathery green plumes appear in summer, maturing into stiff wheat-coloured spikes, which last into winter.
Appearance
Summer Foliage
Green
Fall Foliage
Green
Blooming Time
Late Spring - Mid Summer
Habit
Upright
Height
4–6 ft
Spread
18–24 in
Form
Plume
Characteristics
Type
Cultivar
Safety
Non-toxic
Growth Rate
Moderate
Tolerance/Resistance
Cold Hardy
Attracts
Doesn't Attract Beneficials
Uses/Placement
Screen
Optimal Growing Conditions
Sun Exposure
Full Sun - Part Shade
Soil Texture
Fertile
Soil Drainage
Adaptable
Soil Moisture
Moist
Soil PH
Neutral: 6.5-7.0
PH Tolerance
Prefers neutral soil
Soil Amendment(s)
Compost
Fertilizer
Minimal Fertilizer Needed
Fertilizer Formula
Balanced Fertilizer
Fertilizer Timing
Pre-Bloom
Micronutrients
Trace Minerals Beneficial
Care
Care Level
Low
Behavior and Propagation
Spreading
Moderate Spreader
Propagation Method
Wind Pollinated
Propagation Licensing
Open propagation permitted
Division Timing
Spring Division