[5] The first irrigation canal in the Crau was built in the 16th century by Adam de Craponne.

[5] New meadows are created from alfalfa or a mixture of grasses and legumes, in a field that has been leveled and de-stoned.

Watering will follow one another on the same plot for a period of eight to ten days until the first heavy rains of autumn (September or October).

Grassland plots are bordered upstream by filioles (connected to the secondary network), which are made to overflow by clogging them with hammers.

The main irrigators are Crau hay farmers, most often grouped into syndicated associations (ASA or ASL).

[6][7] Its floristic composition corresponds to a precise specification, established by Decree n°2015-1226, October 2, 2015, and by the Official Journal of the European Union dated January 31, 2017 of Implementing Regulation (EU) n°2017/15.

[8] This hay-based cuisine, sought after by chefs, gives dishes prepared in this way a smoky, vegetal flavor.