Great brome (Bromus diandrus)

Care, watering, light and tips for Great brome on Floravia.

Great brome

Quick facts

About Great brome

Bromus diandrus, also known as Great Brome, is an annual grass reaching heights of 30 to 70 cm, characterized by its drooping spikelets and long awns. While often considered a weed in agricultural settings, its elegant habit and pale green color make it interesting for naturalistic gardens or wild meadows. It is particularly attractive when mass-planted, creating a swaying effect in the wind.

Native range

Mediterranean region (Europe, North Africa, and the Middle East)

Care tips

This species prefers full sun to partial shade exposures and adapts to a wide range of soils, although it thrives in well-drained and not excessively fertile ones. Watering should be moderate, allowing the soil to dry out between waterings, as it is drought-tolerant once established. A common mistake is trying to cultivate it in very nutrient-rich soils, which can lead to excessive and less aesthetic growth. It is important to control its spread if you do not want it to colonize other areas.

How to save a dying Great brome

Warning signs
Dry, yellowing or whitish leaves, drooping and brittle stems.
First aid
Manual removal, pulling up by the roots before it seeds.
What kills it
Allowing it to seed and spread uncontrollably, competing with other plants.
Can it be saved?
It's not a plant to 'save', but to control or eradicate as an invasive weed.

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