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Most all Turfgrass Agronomist recommend that unless you are in the New England area that you do NOT plant a Bentgrass lawn for home purposes... leave it to professional managers at golf courses.  This is because of the extensive maintenance required -including aeration / disease control / irrigation and daily or every other day mowing. 

PENNCROSS Shown at left. However that said... homeowners wanting a green ignore that advice. Try the Putting green construction websites BELOW for some good answers to your questions....   BUY PENNCROSS BENTGRASS SEED Available in 5 & 25 lbs sizes

Penncross is considered one of the best variety choices for home Bentgrass lawns or putting greens.Putting Green

USGA Construction Help for Greens:
http://usga.org/green/
Read their specs on site preparation.

Building a Putting Green -
Information - Purdue University (SEE BELOW)
http://www.agry.purdue.edu/turf/pubs/agry9801.htm

Basic Planting directions below from Purdue University:

Building a Backyard Putting Green  AGRY-98-0 Clark Throssell and Zac Reicher Purdue University Turfgrass Specialists

 1 - Location

• Full sun - The green should be located in full sun for optimum turf growth and performance.
• Air movement - Locate the green so the wind (air flow) is not blocked by trees or buildings.
• Do not locate the green in a depression or low area.

2 - Construction

• Surface drainage - Contours on the green should facilitate rapid surface drainage water.
• Do not create any pockets or low areas where water will stand. Water should drain off the green in more than one direction.
• Rootzone - Almost any soil would be suitable for building a backyard putting green. A sandy loam soil would make an ideal rootzone. Traffic and wear on a backyard putting green is so limited it does not make sense to haul in sand or other material to create a special rootzone mix.
• Grass - Creeping bentgrass is the recommended grass species for putting greens. The seeding rate is 0.5 lb seed per 1,000 sq. ft. Creeping bentgrass seed can be purchased from seed supply houses.

3 - Maintenance

• Mowing - The green should be mowed at 3/16 to 1/4 inch four or more times per week.
• Fertilization
  Fertilize the green with 0.5 lb nitrogen per 1,000 sq. ft. on May 1 and June 1.
  Fertilize with 1.0 lb nitrogen per 1,000 sq. ft. on Sept. 15 and Nov. 15.
• Irrigation - Water the green in the early morning (5-7 a.m.) hours. Only water when the green shows signs of drought stress.
• Pests - Several insects and diseases are potential pests of creeping bentgrass greens. The first step in pest control is to produce a dense, actively growing stand of grass.
• Topdressing - Topdressing is the application of a thin layer of soil on top of the putting surface. Apply a layer of topdressing approximately 1/8 inch thick of screened soil to putting surface. Use a push broom to work the topdressing down through the turf canopy. Apply topdressing in early May and late September.

Additional Source

• Turf Management for Golf Courses by James Beard. Burgess Publishing, Minneapolis MN.

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