How to Grow & Maintain Tall Fescue Grass in New Zealand

Tall fescue grass is a popular choice for lawns, parks, and sports fields across New Zealand due to its hardiness and adaptability. However, growing and maintaining tall fescue grass can come with its own set of challenges. Whether you’re dealing with patchy growth, pest issues, or simply trying to keep your lawn looking lush and green, understanding the ins and outs of tall fescue grass is essential.

In this Jim’s Mowing NZ blog, we’ll explore what tall fescue grass is, its benefits, how to grow it, and how to maintain it for a healthy, vibrant lawn. If you’re looking for professional help, Jim’s Mowing NZ offers expert lawn care and mowing services to keep your tall fescue grass in top condition.

What is Tall Fescue Grass?

Tall fescue grass is a cool-season perennial grass that thrives in a variety of climates, making it a versatile choice for New Zealand residents. It is known for its deep root system, which allows it to withstand drought conditions better than many other grass types. Tall fescue has a coarse texture and grows in clumps, which can make it look slightly different from other grasses like Kentucky bluegrass or ryegrass.

Originally from Europe, tall fescue has been widely adopted in New Zealand due to its ability to grow in a range of soil types, including clay and sandy soils. It is particularly well-suited to areas with moderate rainfall and cooler temperatures, though it can also tolerate heat better than other cool-season grasses.

Benefits of Tall Fescue Grass

1. Drought Tolerance

One of the standout features of tall fescue grass is its deep root system, which can reach up to 1-2 metres deep. This allows it to access water and nutrients that other grasses cannot, making it highly drought-tolerant. For New Zealanders living in regions with sporadic rainfall, tall fescue is an excellent choice.

2. Low Maintenance

Compared to other grasses, tall fescue requires less frequent mowing and fertilising. Its slow growth rate means you won’t need to mow as often, and its natural resistance to pests and diseases reduces the need for chemical treatments.

3. Adaptability

Tall fescue can grow in a variety of soil types, including clay, loam, and sandy soils. It also tolerates both sun and partial shade, making it a versatile option for different areas of your property.

4. Erosion Control

Thanks to its deep and extensive root system, tall fescue is excellent for preventing soil erosion. This makes it a popular choice for slopes, banks, and areas prone to heavy rainfall.

5. Year-Round Greenery

Tall fescue maintains its green colour throughout most of the year, even during cooler months. This makes it an attractive option for homeowners who want a lush lawn year-round.

How to Grow Tall Fescue Grass

Growing tall fescue grass from scratch can be a rewarding experience, but it requires careful planning and execution. Here’s a step-by-step guide to help you get started:

1. Choose the Right Time

The best time to plant tall fescue grass in New Zealand is during the cooler months of autumn or early spring. This allows the grass to establish its root system before the heat of summer or the frost of winter sets in.

2. Prepare the Soil

Before planting, it’s essential to prepare the soil properly. Start by removing any weeds, rocks, or debris from the area. Use a garden fork or tiller to loosen the soil to a depth of about 15-20 cm. This will help the roots penetrate the soil more easily.

If your soil is poor, consider adding organic matter such as compost or well-rotted manure to improve its structure and fertility. A soil test can also help you determine if you need to adjust the pH level. Tall fescue prefers a slightly acidic to neutral pH (6.0-7.0).

3. Sow the Seeds

Tall fescue seeds should be sown evenly across the prepared soil. Use a seed spreader to ensure even distribution. Aim for a seeding rate of about 20-25 grams per square metre. After sowing, lightly rake the soil to cover the seeds with a thin layer of soil (about 0.5 cm deep).

4. Water Thoroughly

After planting, water the area thoroughly to help the seeds settle into the soil. Keep the soil consistently moist but not waterlogged during the germination period, which typically takes 7-14 days. Watering lightly once or twice a day is usually sufficient.

5. Fertilise

Once the grass has established and reached a height of about 5-7 cm, apply a slow-release fertiliser to promote healthy growth. Choose a fertiliser with a balanced NPK ratio (nitrogen, phosphorus, and potassium) to support root development and overall health.

6. Mow for the First Time

Wait until the grass reaches a height of about 8-10 cm before mowing for the first time. Set your mower to a high setting (around 7-8 cm) to avoid cutting the grass too short, which can stress the young plants.

Tall Fescue Grass Maintenance

Once your tall fescue grass is established, proper maintenance is key to keeping it healthy and attractive. Here are some tips to help you care for your lawn:

1. Mowing

Tall fescue grass should be mowed regularly to maintain an optimal height of 5-8 cm. Avoid cutting more than one-third of the grass blade at a time, as this can stress the grass and make it more susceptible to disease. Keep your mower blades sharp to ensure clean cuts.

2. Watering

While tall fescue is drought-tolerant, it still requires regular watering, especially during dry spells. Water deeply and infrequently, aiming for about 2-3 cm of water per week. This encourages the roots to grow deeper, making the grass more resilient.

3. Fertilising

Apply a slow-release fertiliser in early spring and again in autumn to provide the grass with essential nutrients. Avoid over-fertilising, as this can lead to excessive growth and increase the risk of disease.

4. Weed Control

Keep an eye out for weeds and address them promptly. Hand-pulling or spot-treating with a herbicide can help keep weeds under control without harming the grass.

5. Aeration

Over time, soil can become compacted, which restricts root growth and reduces water infiltration. Aerating your lawn once a year (preferably in autumn) can help alleviate compaction and improve the overall health of your grass.

6. Pest and Disease Management

Tall fescue is relatively resistant to pests and diseases, but it’s still important to monitor your lawn for signs of trouble. Common issues include brown patch, rust, and armyworms. If you notice any problems, consult a lawn care professional for advice on treatment options.

7. Overseeding

To maintain a thick, lush lawn, consider overseeding your tall fescue grass every few years. This involves spreading new seeds over the existing lawn to fill in any thin or bare spots.

Professional Help from Jim’s Mowing NZ

If maintaining your tall fescue grass feels overwhelming, or if you simply want to ensure your lawn is in the best possible condition, consider hiring a professional lawn care service. Jim’s Mowing NZ offers expert lawn care and mowing services tailored to your specific needs.

In Summary

Tall fescue grass is an excellent choice for New Zealand residents looking for a hardy, low-maintenance, and attractive lawn option. Its deep root system, drought tolerance, and adaptability make it well-suited to a variety of conditions. By following the steps outlined in this guide, you can successfully grow and maintain a lush, green tall fescue lawn.

Remember, proper preparation, regular maintenance, and timely interventions are key to keeping your grass healthy. And if you ever need a helping hand, Jim’s Mowing NZ is just a phone call away. Our team of experts can take the stress out of lawn care, ensuring your tall fescue grass remains in pristine condition year-round. Call us at 0800 454 654 for professional lawn care services. Happy gardening!