|
Gary Y. Gao,
Ohio State University Extension,
Clermont County;
Barbara Bloetscher, C. Wayne Ellett Plant and Pest Diagnostic Clinic; Joseph F. Boggs, Ohio State University Extension, Hamilton County/Southwest District; Pamela J. Bennett, Ohio State University Extension, Clark County; Jane C. Martin, Ohio State University Extension, Franklin County; Joseph W. Rimelspach, Ohio State University Extension, Plant Pathology; John R. Street, Ohio State University Extension, Horticulture and Crop Science; Erik A. Draper, Ohio State University Extension, Geauga County |
This article is a compilation of turfgrass tips that appeared in the weekly Buckeye Yard and Garden Line throughout 2001. It is a summary of recommended turfgrass cultural practices, identification, and management of turf weeds and diseases, and helpful resources.
Seeding
Although seeding can be done all season, fall is still preferable as the soil stays cool and moist for a longer period of time. Spring seeding can be successful as long as the soil temperatures stay cool long enough for the turfgrass seedlings to develop a good root system. Kentucky bluegrass usually germinates in 14 to 21 days and matures in six to nine months. Optimal root growth for cool season grasses, such as Kentucky bluegrass, occurs when soil temperatures are between 55F to 65F. Seedlings require a longer period of time to establish a good root system when surface soil temperatures stay cool. The root system of seedlings is proportionate to the length of the grass blades, so roots of 1" tall seedlings may only descend 1" to 2" initially.
Although tall and fine fescues germinate in one to two weeks, they require four to six months to establish a good root system that can withstand harsh conditions. Perennial ryegrass can be used throughout the summer if adequate care is provided, as it germinates in seven to 10 days and only requires two to four months to mature. However, during the hot summer months of July and August, the better option is to sod instead of seed. To minimize stress to the sod while the roots are still small and meager, limit traffic and water the turf often to cool the root zone. Monitor the development of the roots and maintain moisture to that depth. Avoid using any herbicides until the turf has been mowed at least three times. Mow high to help shade the turf crowns and maximize potential root growth.