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Calamagrostis x acutiflora 'Karl Foerster'
Common Name: Karl Foerster Feather Reed Grass
A classic, upright ornamental grass prized for its strong vertical habit, early-season flowering, and exceptional four-season interest. Narrow green foliage forms a tight, clump-forming base, topped in early summer by upright, wheat-like flower plumes that emerge purple-bronze and mature to golden tan, persisting well into winter. Growth is clean, uniform, and non-invasive, maintaining a crisp architectural presence without flopping or spreading. Growing Conditions Light: Full sun to part shade Soil: Moist, well-drained; adaptable to a wide range of soil types Water: Average; drought tolerant once established Cold Hardiness: Excellent winter tolerance Hardiness USDA Zones: 4a–9b Mature Size Height: 4–5 ft (5–6 ft in flower) Width: 2–3 ft Features Strongly upright, vertical growth habit Early-season flowering plumes Excellent winter interest Non-invasive, clump-forming grass Landscape Uses Mass plantings and drifts Vertical accents and screens Foundation and backdrop plantings Formal and naturalistic gardens Why Growers Choose It One of the most reliable ornamental grasses available Maintains form without lodging Outstanding performance across a wide climate range
| Plant Type: | Ornamental Grass |
| Width: | 2.5-3.5' |
| Height: | 4' |
| Fragrant: | No |
| Fruit | Yes |
| Growth Rate | Fast |
| Zone: | 5 - 8 |
| Deer Resistant: | No |
| Salt Tolerant: | No |
| Drought Tolerant: | No |
| Exposure: | Full Sun, Partial Shade |
| Bloom Time: | Summer, Late Summer |
| Landscape/Use: | Foundation |
| Shape: | Clump |
| Soil Type | Loamy |
| Flower Color: | Pink |
| Leaf Color: | Green |
| Fall Color: | Green |
