






Karl Foerster
Calamagrostis xacutiflora Karl Foerster
9 reviews
Karl Foerster
Calamagrostis xacutiflora Karl Foerster
9 reviews
- Drought tolerant plant
- Tall, upright growth habit
- Low maintenance and deer resistant
$49.00
$70.00
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$200
- 4"
- 4", 3 Pack
Why Karl Foerster?
Karl Foerster is a popular ornamental grass known for its upright growth habit and feathery plumes that emerge in late spring and persist throughout the winter. This grass is low maintenance, drought-tolerant, and deer-resistant, making it a great choice for garden borders, containers, or mass plantings. Its striking vertical form adds texture and movement to the landscape.
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Sunlight
Karl Foerster grass thrives in full sun to partial shade, but it prefers at least 6-8 hours of sunlight per day for optimal growth. It may tolerate some light shade, but too much shade can result in leggy growth and reduced flowering.

Watering
Karl Foerster, a type of feather reed grass, requires regular watering during periods of hot and dry weather. It is important to keep the soil consistently moist, but not waterlogged, to promote healthy growth and prevent stress on the plant.

Fertilizing
Karl Foerster (Calamagrostis x acutiflora) requires a balanced fertilizer with a ratio of 10-10-10 or similar. Apply in spring before new growth begins, repeating every 6-8 weeks throughout the growing season. Avoid over-fertilization as it can cause exces
Cottage Farms Direct Karl Foerster Grass is a tough, diverse use feather reed grass that blooms two to three weeks earlier than most all other varieties. These outdoor plants create a wonderful vertical effect in the landscape with tall bloom stalks that begin as a reddish brown and turn to a vibrant golden color in the fall. The grass is ideal for borders, erosion control, mass plantings, rain gardens, and even green roofs. These landscaping plants attract birds, and their blooms are well suited to be cut and used in flower arrangements. These garden plants are also tolerant to Black Walnut trees.
Plant Information:
Botanical Name: | Calamagrostis xacutiflora Karl Foerster |
USDA Zones: | 5 - 9 |
Mature Height: | 18 in |






Pollination Info
Pollination Info for Karl Foerster (Calamagrostis xacutiflora Karl Foerster)
Karl Foerster is a hybrid feather reed grass that blooms in late spring to early summer. The flowers are wind-pollinated and do not rely on insects for pollination.
The feathery flower heads are tall and upright, making them highly visible to passing breezes which carry the pollen from plant to plant.
Since Karl Foerster does not require insect pollination, it is a low-maintenance plant for gardeners who may be concerned about attracting pollinators.
FAQ
Karl Foerster Grass FAQ
What is Karl Foerster grass?
Karl Foerster grass, also known as Calamagrostis xacutiflora Karl Foerster, is a popular perennial grass known for its upright, narrow growth habit and feathery plumes. It is named after the famous German horticulturist Karl Foerster.
How tall does Karl Foerster grass grow?
Karl Foerster grass typically grows to a height of 2 to 3 feet, with its flowering plumes reaching up to 4 to 5 feet tall.
When does Karl Foerster grass bloom?
Karl Foerster grass blooms in late spring to early summer, producing feathery plumes that turn a golden color as they mature.
How do I care for Karl Foerster grass?
Karl Foerster grass prefers full sun to partial shade and well-drained soil. It is drought-tolerant once established and does not require much maintenance. Cut back the foliage in late winter to make way for new growth in the spring.
Can Karl Foerster grass be divided?
Yes, Karl Foerster grass can be divided every few years in the spring or fall to rejuvenate the plant and control its spread.
Is Karl Foerster grass deer resistant?
Yes, Karl Foerster grass is known to be deer resistant, making it a great addition to landscapes where deer are a problem.
Planting & Care
Planting & Care for Karl Foerster (Calamagrostis xacutiflora Karl Foerster)
Karl Foerster grass, also known as Calamagrostis xacutiflora Karl Foerster, is a popular ornamental grass prized for its upright growth habit and feathery plumes. Here are some tips for planting and caring for Karl Foerster grass:
Planting:
- Choose a sunny location with well-drained soil for planting Karl Foerster grass.
- Plant the grass in spring or early fall, using divisions or nursery-grown plants.
- Dig a hole twice as wide as the root ball and plant the grass at the same depth it was growing in the nursery.
- Water the grass thoroughly after planting to help establish roots.
Care:
- Water Karl Foerster grass regularly, especially during hot, dry weather.
- Apply a balanced fertilizer in spring to promote healthy growth.
- Prune the grass in late winter or early spring to remove any dead or damaged foliage.
- Divide Karl Foerster grass every few years to prevent overcrowding and rejuvenate the plant.
- Watch for pests and diseases, such as aphids or rust, and treat as necessary.
Following these planting and care tips will help you enjoy the beauty of Karl Foerster grass in your landscape for years to come.
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Customer Reviews
4.7 out of 5 based on 9 reviews
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Customer service was helpful and responsive to my inquiries.
Excellent quality plants, very impressed with how well they are doing.
Beautiful plants, exactly as described. Thriving in my garden.
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