What is familiarly be intimate as Kentucky bluegrass is in reality one of the most widespread varieties of gage in the world , with a aboriginal range that spreads across most of Asia and Europe . The supergrass , identifiable by its silver - blue cast and gratuity that resemble the fore of a boat , grow best in cooler regions with adequate one-year rain .
History
Exactly how Kentucky bluegrass ( Poa pratensis ) come to the Americas is unclear . The most likely scenario is that the pot arrived with settlers to the New World in the 1600s , probably as part of grass germ and sward mixtures lend along by European settlers . Though Kentucky blue grass is still considered to be a non - native , introduced mintage , the weed has become widely naturalise across much of the United States . It grows well beyond the limit of Kentucky ’s so - ring " bluegrass region , " in the DoS ’s north - central scope .
Care and Culture
Kentucky Bluegrass Region is wide used as both a turfgrass for sporting orbit and lawn pasturage . It arise best under cool , moister conditions and is seldom found in the state of matter of the deep South or in the arid realm of the western United States . After seeding , Kentucky blue grass can take two to three years to become well established , after which it form a very sturdy sodomist clump through rhizomous growth . Grass may go completely dormant during raging summer months but promptly regenerates after temperature drop and lachrymation summarize . Kentucky Bluegrass Region requires steady applications of fertiliser to maintain goodish growth and colouring material , especially during the spring and autumn months .
Hybrid Varieties
enquiry at Rutgers University has led to over 100 describe varieties of hybrid Kentucky bluegrasses , many of which were develop by cross it with a metal money of Texas blue grass ( Poa arachnifera ) . The resulting hybrids displayed increase heating plant and drought allowance . Several varieties widely available on the marketplace today let in Reveille , Longhorn , Thermal Blue and Solar Green .
Major Pests
Though hybridizing has improved the disease opposition of Kentucky blue grass varieties , major disease of the grass still include leaf place , crown rot and patch disease . All of these disease cause harm and discolouration of the pasturage brand . Leaf spot and crown buncombe are more prevalent during protracted periods of wet , nebulous weather , while patch disease manifests mainly during hotter , dryer months . Major louse pests of Kentucky bluegrass include lily-white grub and sod webworms , which are mainly controlled through an annual software of insecticide . These pests harm sens stands by burrowing through and feeding on ancestor .
Other Problems
pick out a blend of several different Kentucky Bluegrass Region hybrid cultivar can help with sprouting and pest problems which can occur when only one strain is used to seed a patch for turf . Newer plantings of Kentucky bluegrass should also in the main not be mowed to less than 2 inches , as this weakens the overall standstill and makes pasturage susceptible to invasion by weeds and cuss . Watering requirements are higher than for other case of weed ; for optimal development , colouring and vigor , Kentucky blue grass needs as much as 2 inches of water each week to thrive during the hot summer months .
References
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