Production of tillers of Kentucky bluegrass is enhanced by relatively cool temperatures and short photoperiods. Thus, most tillering takes place in the spring and fall. Some tillers produce inflorescences, while others remain vegetative. Vegetative tillers eventually form true roots, allowing them to be independent of the parent plant. Each panicle of Kentucky bluegrass produces between 100 and 200 seeds.
Few studies report on the seed bank characteristics.
Kentucky bluegrass is primarily used as a lawn grass and as a forage species. It can not only tolerate successive, intensive defoliation, but it may flourish under these conditions. This ability to survive intensive, repeated defoliation is related to how the tillers elongate. First, the leaf blade elongates and is quickly followed by elongation of the sheath and then the internode. The shorter and later internode elongation allows the meristematic tissue to be retained low and near the soil surface while the leaves and sheaths grow well above this level.