Miscanthus Plant Growing & Care Guide for Gardeners

Article by Dean Ravenscroft, Ph.D. - Updated 28th Oct 2023

In this Gardener's HQ guide, we'll explore cultivating Miscanthus plants in your garden, indoor spaces, and other settings.

Maiden Grass, Eulalia, Silver Grass: Cultivation & Garden Use

Miscanthus is a genus of hardy perennial ornamental grasses that reach from 90 cm to 2.7 m (3 to 9 feet) in height.

Miscanthus are upright grasses that have flat leaves and silky inflorescences.

The inflorescences appear towards the end of summer and in autumn.

Some of the common names for Miscanthus include Zebra grass, Japanese silver grass, Porcupine grass, Maiden Grass, Eulalia and Amur Silver grass.

How to Grow Miscanthus

When growing Miscanthus it is best to sow the seeds outdoors. Sow them on the surface about 60 to 90 cm (2 to 3 feet) apart for small species. Larger Miscanthus varieties should be planted singularly.

They typically take from two to nine weeks to germinate, once the temperature reaches 15 degrees Centigrade (59°F).

Silver grasses (Miscanthus) can grow in either sunny or lightly shaded areas that have good drainage.

They have a preference for moist soil, but are able to tolerate dry spells.

Caring for Miscanthus Plants

When growing Miscanthus, it is important to realise that they are very large plants. This means that they require a lot of physical effort to look after.

As they easily spread, they should be cut back to ground level in the autumn before they have chance to set seed.

Miscanthus also require to be divided about every four years in the springtime. This helps to maintain robust growth. Division also allows gardener's to obtain additional plants.

Common Questions

How many members does the Miscanthus genus contain?

The Miscanthus genus contains about 20 species.

Do Miscanthus members make a good garden or landscaping plant?

Yes, Miscanthus is a fantastic ornamental grass that adds movement, texture, and winter interest to the landscape. It's great for borders or as a privacy screen.

Which Miscanthus species are most frequently grown by gardeners?

The Miscanthus sinensis (Chinese Silver Grass) is often grown for its graceful, arching stems and silvery seed heads.

Are Miscanthus plants fragrant?

Miscanthus plants are not typically noted for being fragrant. They are grown for their visual appeal.

What is the perfect location to grow Miscanthus?

Miscanthus prefers full sun to light shade and well-drained soil. It can tolerate a wide range of soil types and conditions.

Is Miscanthus invasive in the USA, if so in which states?

Some species of Miscanthus, like Miscanthus sinensis, can become invasive in certain regions, including parts of the Midwest and East Coast of the USA.

How do I remove Miscanthus plants from my garden?

Miscanthus can be difficult to remove due to its deep, rhizomatous root system. Digging out the entire clump, including all roots, is the most effective method.

Summary

Miscanthus is a genus in the Poaceae family, consisting of versatile perennial grasses. They are highly valued for their statuesque form, feathery flowers, and the interest they bring to the winter garden.

For optimal growth, plant Miscanthus in a sunny spot with well-drained soil. It's best to plant them in early spring or fall. Water them regularly in their first growing season to establish a deep and extensive root system. These grasses are easy to care for, requiring minimal maintenance once established.

I hope that you enjoyed this guide on how to grow Miscanthus plants. You may also enjoy the following Gardener's HQ growing guides: How to grow Oats, Pennisetum plant, and Melica plants.