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A good choice for heavy clay soils. Feathery plumes appear in late spring and last all season long.

Prefers sunny, dry conditions and can be grown in nearly any soil, including heavy clay. Be sure to provide plenty of moisture in extremely hot weather. Cut back to 6 inches in spring before new growth begins. Propagate by division in either spring or fall.

Attributes: Border plants, Cut flower or foliage, Dried flower or seed heads, Mass Planting, Salt Tolerant, Specimen or focal point plant, Deer resistant. Perfect to use as a screen in the garden.

Calamagrostis

Calamagrostis a. 'Karl Foerster' (25) BR Plants

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Calamagrostis

Calamagrostis a. 'Karl Foerster' (30)ct Flat

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Calamagrostis

Calamagrostis a. 'Overdam' (30)ct Flat

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Calamagrostis

Calamagrostis a. Hello Spring! (30)ct Flat

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Calamagrostis

Calamagrostis brachytricha (30)ct Flat

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Calamagrostis

Calamagrostis a. 'Karl Foerster' (25) BR Plants

Calamagrostis acutiflora 'Karl Foerster' (25) Bare Root PlantsCommon Name: Feather Reed Grass, Ornamental Grass This is a cool season, clumping grass with a compact, erect growth habit. It is especially prized in the north where the magnificent,...

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Calamagrostis

Calamagrostis a. 'Karl Foerster' (30)ct Flat

Calamagrostis acutiflora 'Karl Foerster' (30)ct FlatCommon Name: Feather Reed Grass, Ornamental Grass Perennial Plant of the Year for 2001. This is a cool season, clumping grass with a compact, erect growth habit. It is especially prized in the north...

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Now: $189.38
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Calamagrostis

Calamagrostis a. 'Overdam' (30)ct Flat

Calamagrostis acutiflora 'Overdam' (30)ct FlatCommon Name: Variegated Feather Reed Grass, Ornamental Grass 'Overdam' has variegated foliage that starts out with bright creamy-white margins which then fade to white with a pink flush. The upright clump of...

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Calamagrostis

Calamagrostis a. Hello Spring! (30)ct Flat

Calamagrostis acutiflora Hello Spring!™ (30)ct FlatCommon Name: Feather Reed Grass, Ornamental Grass An arching variegated Feather Reed Grass varying from the typical upright habits of market cultivars. Leaves have wide creamy white margins edging...

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Calamagrostis

Calamagrostis brachytricha (30)ct Flat

Calamagrostis brachytricha (30)ct Flat Common Name: Korean Feather Reed Grass, Ornamental Grass, reed grass, foxtail grass. If you think all Calamagrostis are like ‘Karl Foerster’, think again! This Asian native is the...

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What Is Calamagrostis?

Calamagrostis, also known as reed grass or smallreed, is a genus of flowering plants in the grass family Poaceae. There are about 260 species of Calamagrostis found mainly in temperate regions of the world, particularly at higher elevations near the equator. These plants are typically tufted perennials with narrow, hairless leaves and blunt ligules. They produce inflorescences in the form of panicles, some of which resemble reeds.

Many Calamagrostis species are considered to be quite decorative and are widely cultivated, especially in northern temperate zones. Two popular examples include:

Calamagrostis brachytricha: This species has been awarded the Royal Horticultural Society's Award of Garden Merit.

Calamagrostis × acutiflora 'Karl Foerster': This cultivar, commonly known as feather reed grass, is the first ornamental grass to receive the Perennial Plant of the Year Award® (2001). It's known for its good looks, long-lasting plumes, and easy care requirements.

Here are some of the common characteristics of Calamagrostis species:

Habit: Clump-forming perennials
Leaves: Narrow, hairless, and green
Ligules: Blunt
Inflorescences: Panicles, some resembling reeds
Flowers: Small and inconspicuous
Seeds: Sterile in some species

Calamagrostis can be grown in a variety of conditions, including full sun, partial shade, and even moist soil. They are generally low-maintenance plants and require little care once established. If you're looking for an attractive and easy-to-care-for ornamental grass for your garden, Calamagrostis is a great option to consider.

How Do I Plant Calamagrostis?

Planting Calamagrostis is a relatively straightforward process, but here are some key steps to ensure success:

When to Plant:

Ideal: Autumn (fall) is the best time to plant, while the ground is still warm and allows roots to establish before winter.

Alternative: You can plant any time of year except when the ground is frozen or waterlogged. Be aware that summer plantings might need more frequent watering during establishment.

Where to Plant:

Sunlight: Calamagrostis thrives in full sun (at least 6 hours daily) for optimal growth and flowering.

Shade: They can tolerate partial shade, but growth might be less vigorous and lean towards the light source.

Soil: They prefer moist, well-draining soil, but can adapt to clay and poor soils with proper amendments. If your soil is very dry, add organic matter like compost before planting.

Planting Steps:

Dig a hole: Make the hole slightly wider and deeper than the root ball of your Calamagrostis plant.

Loosen the soil: Gently loosen the soil around the edges and bottom of the hole to encourage root growth.

Amend the soil (optional): If your soil is poor quality, mix in some compost or organic matter into the dug-out soil.

Position the plant: Place the Calamagrostis in the hole, ensuring the root ball sits at the same level as it was in the container.

Backfill the hole: Fill the hole with the excavated soil, firming it gently around the base of the plant.

Water thoroughly: Give the plant a good watering to settle the soil and hydrate the roots.

Additional Care Tips:

Watering: Water regularly, especially during the first year and dry periods. Aim to keep the soil moist but not soggy.

Mulching: Apply a layer of mulch around the base of the plant to retain moisture, suppress weeds, and regulate soil temperature.

Fertilizing: Fertilize once in spring with a balanced fertilizer according to package instructions.

Pruning: Cut back the dead flower stalks and foliage in late winter or early spring before new growth emerges.

By following these simple steps and providing proper care, you can successfully plant and enjoy the beauty of Calamagrostis in your garden.

What Are The Different Varieties Of Calamagrostis?

There are over 260 species of Calamagrostis found around the world, but some of the most popular and interesting varieties for gardens include:

Calamagrostis x acutiflora 'Karl Foerster': This award-winning cultivar, commonly known as feather reed grass, is a popular choice for its tall, upright habit, airy plumes, and low maintenance requirements. It grows to 4-5 feet tall and has narrow, green leaves that turn golden yellow in fall. The feathery plumes start out pink in summer and mature to a golden tan color, adding beauty to the garden even in winter.
Calamagrostis arundinacea: Also known as common reed grass, this species is one of the tallest Calamagrostis, reaching up to 10 feet tall. It has broad, green leaves and large, open panicles that turn golden brown in fall. Calamagrostis arundinacea is a good choice for a background planting or as a specimen plant.
Calamagrostis brachytricha: This compact variety is only 2-3 feet tall and has narrow, green leaves with white margins. The feathery plumes start out pink in summer and mature to a golden yellow color. Calamagrostis brachytricha is a good choice for smaller gardens or for planting in containers.
Calamagrostis filifolia: This delicate variety has thread-like leaves and airy panicles that resemble hair. It grows to 2-3 feet tall and is a good choice for adding texture and movement to the garden.
Calamagrostis nutans: This nodding sedge grass has arching stems and drooping panicles. It grows to 3-4 feet tall and has green leaves that turn yellow in fall. Calamagrostis nutans is a good choice for a naturalized planting or for a bog garden.
Calamagrostis stricta ssp. stricta: This upright variety has narrow, green leaves and dense panicles. It grows to 4-5 feet tall and is a good choice for a vertical accent in the garden.

These are just a few of the many different varieties of Calamagrostis available. With so many choices, you're sure to find a variety that's perfect for your garden.

How Do I Care For Calamagrostis In My Garden?

Caring for Calamagrostis in your garden is relatively easy, as they are generally low-maintenance plants. Here's a breakdown of the key aspects:

Watering:

Newly planted: Water regularly, especially during the first year and dry spells, aiming for moist but not soggy soil.

Established: Once established, they are more drought-tolerant but still appreciate occasional watering during extended dry periods.

Mulching:

Apply a 2-inch layer of mulch around the base of the plant to retain moisture, suppress weeds, and regulate soil temperature. Replenish the mulch layer as needed throughout the season.

Fertilizing:

Fertilize once in spring with a balanced fertilizer following the package instructions. Avoid over-fertilizing, as it can encourage excessive growth and weaken the plant.

Pruning:

The main pruning happens in late winter or early spring, before new growth emerges.

Cut back the entire plant to the ground, removing the dead flower stalks and foliage. This encourages fresh, new growth and maintains the tidy appearance of the plant.

Additional Care:

Dividing: If your Calamagrostis becomes too large, you can divide it in spring or fall. Dig up the clump, carefully separate the divisions, and replant them in suitable locations.

Staking: Some taller varieties, especially in exposed areas, might benefit from staking in early spring to prevent them from falling over.

Pests and diseases: Calamagrostis are generally resistant to pests and diseases. However, keep an eye out for common grass problems like aphids or rust, and treat them promptly if necessary.

By following these simple tips, you can ensure your Calamagrostis thrives and adds its unique beauty to your garden for many years to come. Remember, the specific needs of your plant might vary slightly depending on the variety you have and your local climate. So, observe your Calamagrostis and adjust your care accordingly for optimal results.

Do Calamagrostis Plants Attract Pollinators?

No, Calamagrostis plants are not considered to be particularly attractive to pollinators like bees, butterflies, or hummingbirds. This is because their flowers are small, inconspicuous, and lack the nectar or pollen rewards that pollinators typically seek.

The feathery plumes of Calamagrostis, while aesthetically pleasing, do not offer much in terms of sustenance for pollinators. Additionally, the timing of their bloom period often coincides with the abundance of other, more pollinator-friendly flowers, making Calamagrostis less competitive for pollinator attention.

However, Calamagrostis can still play a role in supporting healthy pollinator populations by providing:

Habitat and shelter: The dense clumps of Calamagrostis can provide shelter and nesting sites for some pollinator species, such as ground-nesting bees and butterflies.

Food source for other insects: While not directly attractive to pollinators, Calamagrostis can support populations of other insects that pollinators prey on, indirectly contributing to the food web.

Aesthetic value: By creating an attractive and diverse garden with a variety of plants, including both pollinator-friendly and non-pollinator-friendly ones, you can help to create a welcoming environment for all types of wildlife, including pollinators.

So, while Calamagrostis may not be a magnet for bees and butterflies, they can still be a valuable addition to a pollinator-friendly garden by providing habitat, shelter, and contributing to the overall biodiversity of the ecosystem.

Are There Any Common Pests Or Diseases That Affect Calamagrostis?

Fortunately, Calamagrostis are generally quite resistant to pests and diseases, making them relatively low-maintenance plants. However, there are a few occasional issues to keep an eye out for:

Pests:

Aphids: These small, soft-bodied insects can suck the sap from Calamagrostis leaves, causing stunting and yellowing. If you notice aphid infestations, you can control them with insecticidal soap spray or by encouraging natural predators like ladybugs.

Grubs: The larvae of various beetles, such as chafer grubs, can feed on the roots of Calamagrostis, damaging the plant and hindering its growth. If you suspect grubs, insecticidal nematodes can be a helpful biological control method.

Diseases:

Rust: This fungal disease can cause reddish-brown pustules to form on the leaves of Calamagrostis. While unsightly, it rarely causes serious damage. Improve air circulation around the plants and remove infected leaves to manage rust.

Leaf spots: Various fungal pathogens can cause brown or yellow spots to appear on the leaves of Calamagrostis. Improve air circulation, avoid overhead watering, and remove infected leaves to control leaf spot diseases.

Other potential issues:

Crown rot: This fungal disease can cause the base of the Calamagrostis plant to rot and die. Overwatering and poor drainage can contribute to crown rot. Ensure proper drainage and avoid overwatering to prevent this issue.

Winter burn: The foliage of Calamagrostis can sometimes get damaged by cold winter winds and drying conditions. To protect your plants, you can tie the leaves loosely together in late fall and provide winter mulch around the base.

Remember, early detection and intervention are key to managing any pest or disease issues that might affect your Calamagrostis. By monitoring your plants regularly and taking appropriate action when necessary, you can keep them healthy and vibrant throughout the season.

Can I Use Calamagrostis In Floral Arrangements?

Yes, you absolutely can use Calamagrostis in floral arrangements! In fact, they are a popular choice for adding height, texture, and movement to bouquets and centerpieces. Here's why they are great for floral arrangements:

Varieties with attractive plumes: Several Calamagrostis species have beautiful feathery plumes that come in various colors like pink, purple, gold, and tan, adding visual interest and depth to arrangements.

Long-lasting: The dried plumes of Calamagrostis retain their shape and color well, making them perfect for long-lasting arrangements that can be enjoyed for weeks or even months.

Versatility: Calamagrostis can be used in a variety of floral styles, from rustic and natural to modern and minimalist. They pair well with other flowers, greenery, and even dried elements.

Textural contrast: The airy plumes of Calamagrostis provide a beautiful textural contrast to other flowers and foliage in an arrangement, adding visual dimension and dynamism.

Here are some tips for using Calamagrostis in floral arrangements:

Choose the right variety: Select Calamagrostis varieties with attractive plumes that complement the overall style and color scheme of your arrangement.

Harvest at the right time: For fresh-cut Calamagrostis, harvest the plumes just before they fully open, when they have a soft, feathery texture. For dried plumes, harvest them when they are fully mature and have begun to dry naturally.

Prepare the stems: Cut the Calamagrostis stems to the desired length and remove any excess foliage from the lower part of the stems.

Condition the stems: If using fresh Calamagrostis, condition the stems by placing them in a vase of lukewarm water for several hours before arranging them.

Incorporate into your arrangement: Add the Calamagrostis stems to your arrangement, using their height and texture to create balance and visual interest. You can group them together for a bold statement or disperse them throughout the arrangement for a more subtle effect.

With a little creativity, you can use Calamagrostis to create stunning and unique floral arrangements that will last for a long time.

Is Calamagrostis Invasive?

Whether Calamagrostis is considered invasive depends on the specific species and your location. Here's a breakdown:

Generally:

Most native Calamagrostis species are not considered invasive. They tend to be clump-forming and well-behaved within their natural ranges.

However, some introduced Calamagrostis species, particularly Calamagrostis epigejos (common reed grass) and Calamagrostis arundinacea (large reed grass), can be invasive in certain regions.

Factors to Consider:

Location: Invasive potential can vary depending on the local climate, soil conditions, and existing plant communities. For example, a non-invasive species in its native range might become invasive in a new environment with fewer natural competitors.

Cultivar: Some cultivars within a species might be more prone to spreading than others due to differences in seed production or vegetative growth habits.

Planting practices: Responsible planting practices can help minimize the risk of any plant becoming invasive, regardless of its inherent potential. This includes avoiding planting invasive species in sensitive areas and properly maintaining them to prevent them from spreading beyond their intended location.

Recommendations:

Before planting any Calamagrostis species, research its invasive potential in your specific region. You can consult with local gardening experts, conservation organizations, or native plant societies for guidance.

Opt for native Calamagrostis species or non-invasive cultivars whenever possible.

Practice responsible planting practices, such as choosing appropriate locations and monitoring your plants for signs of unwanted spread.

By following these recommendations, you can enjoy the beauty of Calamagrostis in your garden while minimizing the risk of it becoming a problem.

When Is The Best Time To Divide Calamagrostis Plants?

The best time to divide Calamagrostis plants depends on your climate and the specific species you have:

Spring:

Generally considered the ideal time for most Calamagrostis species.

The ground is warm enough for roots to establish quickly, and the plant has a full growing season ahead to recover and thrive.

Divide in early spring, just as new growth begins to emerge from the base of the plant.

Fall:

An alternative option, especially for warmer climates.

Provides enough time for roots to establish before winter, but the plant will have less time to recover before the following growing season.

Divide in early fall, at least 6-8 weeks before the first frost.

Large clumps can be divided in fall with a good chance of flowering the following spring, while smaller divisions might require another season to reach full bloom.

Here are some additional factors to consider when deciding when to divide Calamagrostis:

Plant size and health: Dividing overgrown or congested clumps is beneficial for revitalizing the plant. However, avoid dividing small or weak plants, as they might struggle to recover.

Local climate: If you have harsh winters, dividing in spring might be safer to ensure the new divisions have enough time to establish before the cold weather arrives.

Specific species: Some species, like Calamagrostis x acutiflora 'Karl Foerster', can be divided in either spring or fall with good results. Research the specific needs of your Calamagrostis variety.

Remember, regardless of the timing, proper division techniques are crucial for the success of the process. Ensure you have sharp tools, prepare the new planting locations, and water the divisions thoroughly after planting.

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Calamagrostis

Calamagrostis a. 'Karl Foerster' (25) BR Plants

Calamagrostis

Calamagrostis a. 'Karl Foerster' (30)ct Flat

Calamagrostis

Calamagrostis a. 'Overdam' (30)ct Flat

Calamagrostis

Calamagrostis a. Hello Spring! (30)ct Flat

Calamagrostis

Calamagrostis brachytricha (30)ct Flat

Calamagrostis

Calamagrostis a. 'Karl Foerster' (25) BR Plants

Calamagrostis

Calamagrostis a. 'Karl Foerster' (30)ct Flat

Calamagrostis

Calamagrostis a. 'Overdam' (30)ct Flat

Calamagrostis

Calamagrostis a. Hello Spring! (30)ct Flat

Calamagrostis

Calamagrostis brachytricha (30)ct Flat