Koeleria Plant Growing & Care Guide for Gardeners

Article by Dean Ravenscroft, Ph.D. - Updated 25th Nov 2023

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

Junegrass, Crested Hair Grass, Blue Hair Grass, & Blue Meadow Grass: Cultivation & Garden Use

Most of the Koeleria genus plants that are grown in the garden are hardy perennials.

They are grasses and have blue or green flat leaves that are between 15 and 45 cm (6 to 18 inches) in length.

They have inflorescences atop long stems and bloom from spring to early summer.

Some of the common names for Koeleria include Blue meadow grass, Crested Hair Grass, Blue June grass, and Blue hair grass.

Latin names include Koeleria macrantha, Koeleria pyramidata and Koeleria cristata.

Both Photographs of Koeleria macrantha by Matt Lavin.

How to Grow Blue meadow grass and other Koeleria Plants

Blue meadow grass, Junegrass, and other Koeleria can be grown either from seeds or tubers.

The seeds should be sown on the surface, and tubers buried 5 cm (2 inches) deep. Do this in the first months of spring.

They like to grow in sunny areas that have good drainage, and have a preference for sandy soil.

It takes from half a week to three weeks for blue meadow grass seeds to germinatem at 15 to 24 degrees centigrade (59 to 75°F).

Caring for Koeleria in the Garden

Once growing thin the young Koeleria plants to be spaced about 20 to 30 cm (8 to 12 inches) apart.

Members of the Koeleria genus are pretty easy to look after: they require regular watering in dry spells.

Plants are short lived, and more can be propagated by dividing plants in the spring.

Common Questions

How many members does the Koeleria genus have?

The Koeleria genus consists of around 25 species. These grasses are generally known for their dense, erect panicles and fine texture.

Do members of Koeleria make a good garden or landscaping plant?

Yes, Koeleria species like Koeleria macrantha (Junegrass) can be excellent for naturalistic plantings, rock gardens, and meadows.

Which Koeleria species are most frequently grown by gardeners?

The most commonly grown species is Koeleria macrantha (Junegrass) due to its attractive, feathery seed heads and ability to thrive in dry conditions.

Are members of the Koeleria plant genus fragrant?

Koeleria species do not have a notable fragrance, but their attractive seed heads add visual appeal to gardens.

What is the perfect location to grow Koeleria?

Koeleria species thrive in sunny locations with well-drained soil. They are quite tolerant of dry, rocky, or sandy soils.

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

Presently, Koeleria species are not considered invasive in the USA.

How do I remove Koeleria plants from my garden?

To remove Koeleria, pull or dig up the entire clump, making sure to remove all of the roots to prevent regrowth.

Summary

The Koeleria genus, part of the Poaceae family, includes perennial grasses native to temperate regions worldwide. Recognized for their ornamental value, these plants produce narrow, feathery flower spikes and are often used in borders and meadows.

Koeleria enjoys full sun and well-drained soil. It is drought-tolerant once established. Propagation is typically achieved through seeds, sown in the spring or fall.

I hope that you enjoyed this guide on how to grow Koeleria plants. You may also enjoy my gardening guides on how to grow Echinacea purpurea, Hyssopus plant, and Abies concolor plants.