Nursery Sod Growers Association of Ontario

Specifications

Specifications for Turfgrass Sod for Ontario

A complete specification for turfgrass nursery sod will include the quality standard as set out below PLUS a selection of one of the classifications of turfgrass nursery sod as set out in the following.

Quality Standard

Number One Grade Turfgrass Nursery Sod

Turfgrass nursery sod is grass that has been seeded and cultivated in nursery sod fields as a turfgrass sod. At the time of sale, Number One Grade Turfgrass Nursery Sod should be in a healthy condition. Sod of this quality may contain I broadleaf weed per 40 square metres and up to 1% native* grasses. Sod should be of sufficient shoot density that no surface soil will be visible from a standing position when mowed to a height of 4 centimetres. The mowing height range should be 3 to 7 centimetres with the exception of creeping bentgrass sod where mowing height is determined by the end use. The thickness of the soil portion of the sod should not exceed 1.5 centimetres.**

Number One Grade Turfgrass Nursery Sod is recommended for locations where an attractive high quality turf is required, such as residential/commercial/office lawns, golf courses, sports fields and institutional grounds.

Commercial Grade Turfgrass Nursery Sod

Commercial turfgrass nursery sod is grass that has been seeded and cultivated in nursery sod fields as a turfgrass sod. At the time of sale, Commercial Grade Turfgrass Nursery Sod should be in a healthy condition. Sod of this quality may contain up to 5 broadleaf weeds per 40 square metres and up to 20% native* grasses. Sod should be of sufficient shoot density that no surface soil will be visible from a standing position when mowed to a height of 4 centimetres . The mowing height range should be 3 to 7 centimetres with the exception of creeping bentgrass sod where mowing height is determined by the end use. The thickness of the soil portion of the sod should not exceed 1.5 centimetres.**

Commercial Grade Turfgrass Nursery Sod is suitable for erosion control, roadsides, boulevards and minimum maintenance areas.

*Any grass species other than those seeded shall be deemed native.

**Thickness of the soil portion of the sod may vary with field and environmental conditions at time of harvest. Note that the soil portion is generally composed of at least 50% volume of grass roots.

Classification, Description and Use of Turfgrass Nursery Sod

Kentucky Bluegrass Sod

Nursery sod grown from one or more Kentucky bluegrass cultivars.
Highly recommended by N.S.G.A., this all-purpose sod is a first choice for Ontario climates for use in sunny to slightly shady locations. Its excellent colour and texture make it an attractive, high quality turf especially for residential lawns. Also used for parks, cemeteries, institutional grounds, boulevards, golf courses, sports fields, office and commercial lawns.

Kentucky Bluegrass/Fine Fescue Sod

Nursery sod grown from a seed mixture containing 90 - 95% by weight of Kentucky bluegrass cultivars and 5 - 10% by weight of creeping red, chewings or hard fescue cultivars.

An all purpose sod with moderate shade adaptation. Suitable for residential lawns, parks, cemeteries, institutional grounds, boulevards, golf courses, sports fields, office and commercial lawns.

Fine Fescue/Kentucky Bluegrass Sod

Nursery sod grown from a seed mixture containing 60% - 70% by weight of Kentucky bluegrass cultivars and 30% - 40% by weight of creeping red, chewings or hard fescue cultivars.

A less attractive lower maintenance sod having higher tolerance to shade and drought stresses. Suitable for any turf area requiring shade tolerance and/or minimal maintenance.

Specialty Turfgrass Sod

Nursery sod grown from seed of various species of turfgrass such as:

A. Creeping Bentgrass A fine-textured, very dense, low growing species recommended for use on putting greens, bowling greens, fairways and tees. Usually grown as a mono-stand of a single cultivar.

B. Turf-Type Perennial Ryegrass A medium-textured, shiny-leafed, moderately fast growing species exhibiting good wear tolerance. Lacks cold hardiness in many parts of Ontario. Can be used for lawns, sports fields and fairways. May be grown in a mixture with Kentucky bluegrass.

C. Fine-Leafed Fescues* A less attractive, very fine-textured, shade adapted and drought tolerant species suitable for low maintenance situations. May be grown in a mixture with Kentucky bluegrass. Has lower nitrogen and water requirements.

D. Turf-Type Tall Fescue A coarse-textured, drought resistant and wear tolerant species. Non-recuperative when damaged. Lacks cold hardiness in many parts of Ontario. Suitable for sports fields and low maintenance areas mowed at higher heights.

E. Other Species Include supina bluegrass (a shade and wear tolerant species), weeping alkaligrass (a salt and alkaline pH tolerant species), and other specialized turfgrasses as they may be identified.

*Includes creeping red fescue, chewings fescue, hard fescue, and sheep fescue.