The maturity group of Kentucky bluegrass is determined by the timing of developmental stages, measured by the number of days from the onset of spring regrowth to inflorescence emergence or harvest maturity of seeds.
In the reference
50
varieties
crop Kentucky bluegrass,
where this is mentioned in the description.
To assess the maturity of Kentucky bluegrass varieties, the duration of the growing season is recorded, which can range from 85 to 97 days until seed harvest maturity is reached. In variety descriptions, maturity traits are more often characterized descriptively as early, medium, or late, without the use of strict standardized heat unit scales.
The classification of varieties into maturity groups is primarily used when designing grass mixtures to ensure a uniform supply of forage throughout the season and to coordinate developmental rates with other components of the sward. For seed production, maturity classification is critical for determining optimal direct harvesting times, which helps minimize losses due to shattering.
General information about the subject — on the page
Maturity group.
Varieties of Kentucky bluegrass mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.