Tall Fescue (Lolium arundinaceum)

Also known as: Kentucky Fescue

**Tall Fescue (Lolium arundinaceum)** is a perennial grass that typically reaches heights of 61 to 122 cm. It is often deemed invasive due to its disruptive impact on woodlands, savannas, and grasslands. Originating from Eurasia, it was introduced to North America by early settlers for the purpose of grazing livestock.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting Toxicity

Attributes of Tall Fescue

Lifespan

Perennial

Plant Type

Grass

Plant Height

80 cm to 1 m

Spread

N/A

Leaf Color

Green

Flower Size

20 cm to 30 cm

Flower Color

Green Yellow

Images of Tall Fescue

Quickly Identify Tall Fescue

Deep green color with fine-textured, glossy leaves.

Leaves clasping stem, 0.25 inches (0.64 cm) wide, ridged edges.

Tall, narrow, erect seed head for easy recognition.

Thick linear leaves with toothed margins, shiny underside.

Emerging leaves rolled in the bud, up to 12 inches (30 cm) long.

Scientific Classification of Tall Fescue

Phylum

Vascular plants

Class

Monocotyledons

Order

Poales

Family

Grass

Genus

Ryegrasses

Species

Tall Fescue

Planting and Growing of Tall Fescue

Care Difficulty

Easy

Watering Schedule

Every 4 days

Sunlight Requirements

Full sun

Sunshine Duration

4-8 hours

Ideal Temperature

60-75℉

Soil Type

Potting Mix, Peat Mix

Soil pH

5.5-7

Fertilizer Type

Balanced

Pruning Season

Spring, Summer

Pruning Area

Branches, Leaves

Pruning Frequency

2 times a year

Repotting Season

Spring

Pot Type

Plastic, Ceramic

How to Water Tall Fescue?

Lolium arundinaceum requires a balanced approach to watering. Ideally, water the soil deeply with about 3000 ml per session, ensuring that the moisture reaches the root zone, which helps develop a robust and vigorous root system. Aim for even moisture without making the soil waterlogged.

What are the symptoms of an underwatered Tall Fescue? ›

What should I do if my Tall Fescue is not getting enough water? ›

What are the symptoms of an overwatered Tall Fescue? ›

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What Are the Sunlight Requirements for Tall Fescue?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 4 to 6 hours

Lolium arundinaceum thrives under full sun or partial sun with 4 to 6 hours of daily exposure, promoting vigorous growth and resilience against diseases.

How to Achieve Ideal Lighting? ›

What Actions Facilitate Ideal Lighting? ›

Benefits of Ideal Lighting for Lolium arundinaceum ›

More About Sunlight Requirements Techniques→

What Is the Ideal Temperature Range for Tall Fescue?

Ideal Temperature: 60 ~ 75℉

Lolium arundinaceum thrives best when the temperature ranges between 60°F to 75°F during the growing season. At this range, the plant's metabolic processes, including photosynthesis and nutrient uptake, are most efficient, leading to healthy growth and dense foliage.

What Soil is Best for Tall Fescue?

Soil type: Loam, Sandy loam

Soil PH: 5.5 ~ 7

Lolium arundinaceum thrives best in well-drained soils. This ensures that the roots are not waterlogged, which can prevent diseases and promote healthy growth. Well-drained soil maintains the right balance of moisture and air around the roots. The soil should be nutrient-rich to support the vigorous growth of Lolium arundinaceum. Fertile soil provides the essential macro and micro-nutrients needed for the plant to grow robust and vibrant, enhancing its overall appearance and resilience. Incorporating organic matter like compost improves soil structure and fertility. It boosts microbial activity, aids in better water retention, and provides a slow-releasing nutrient source, all beneficial for sustaining the plant's health over time.

How to Fertilize Tall Fescue?

Fertilizer type: Balanced

For Lolium arundinaceum, a balanced application of fertilizers is critical. For liquid fertilizer, use about 100-150 ml per square meter during the growing season, ensuring the solution is diluted to at least half the recommended strength to prevent root burn. Slow-release fertilizers should be applied at about 50-75 grams per square meter annually, based on soil tests and plant needs.

How to Prune Tall Fescue?

Pruning Time: Spring, Summer, Autumn

Start by using a sharp pair of shears or a lawn mower with a reliable blade. Trim the grass to a height of approximately 1.5 to 2 inches. This height allows the plant to recover quickly and grow back healthier. Focus on removing any dead or diseased blades, which can contribute to stronger overall growth. Avoid cutting more than one-third of the height at a time to reduce stress on the plant. More About Pruning Techniques→

How to Propagate Tall Fescue plant?

Propagate Time: Spring, Early summer

Choose a well-draining soil mix, as Lolium arundinaceum prefers not to be waterlogged. To prepare the soil, incorporate organic matter such as compost to enhance soil fertility.

Scatter the seeds evenly over the prepared soil surface. After sowing, lightly cover the seeds with a thin layer of soil or sand to protect them while still allowing light exposure.

For division, carefully dig up the parent plant, ensuring minimal root damage. Gently separate clumps into sections each with roots attached, and replant them promptly.

More About Propagating Techniques→

How to Repot Tall Fescue plant?

Repotting frequency: Every 2-3 years

Observe if Lolium arundinaceum shows slowed growth or becomes root-bound, as these are indicators it's time to repot. Ideally, repot during spring or autumn when the plant isn't stressed by extreme temperatures.

Select a pot that is one size larger than the current one, with proper drainage holes to prevent waterlogging. This helps prevent root rot and gives roots ample room to grow and spread.

A well-draining loamy soil mix is ideal, ensuring that water doesn't accumulate around the roots which could lead to decay, while also retaining enough moisture to provide necessary hydration.

Toxicity of Tall Fescue

Is Tall Fescue toxic to cat?

Tall Fescue poses a toxicity risk to cats. If a cat accidentally ingests any portion of this plant, such as its leaves, stems, or seeds, it can result in poisoning. Pet owners need to recognize that even minimal consumption can cause adverse effects, leading to a variety of symptoms that signify physical discomfort or distress. Should there be any suspicion of tall Fescue ingestion, it is crucial to seek veterinary assistance immediately to tackle potential health complications and avert more serious issues. Acting swiftly is essential to safeguard the cat's health and facilitate recovery.

Is Tall Fescue toxic to dog?

Tall Fescue is recognized as toxic to dogs. Pets may inadvertently consume various parts of this plant, which can result in poisoning. Every part of the plant is detrimental, and ingesting even a small amount can lead to serious health issues. Dog owners must remain alert for signs such as vomiting, diarrhea, excessive drooling, or more critical symptoms like tremors or seizures. If a dog shows any of these symptoms after being exposed to tall Fescue, it is crucial to obtain prompt veterinary assistance to secure the best outcome for the animal.

WARNING

The judgment on toxicity and danger is for reference only. We DO NOT GUARANTEE any accuracy of such judgment. Therefore, you SHALL NOT rely on such judgment. It is IMPORTANT TO SEEK PROFESSIONAL ADVICE in advance when necessary.

More About Toxic Techniques→