Sedge plants are not grasses but are a close cousins . They are similar in appearance and they formed our original sod mixed with native grasses. Overtime we have given up this sod to a mixture of grasses imported from Asia, Europe, and Africa, which now make up our cultivated turf grass. These imported grasses have been hybridized and now make up the lawns we see every day. There is a priced to be paid though for that nice cleaned manicured look. Weekly mowing, fertilizer ,herbicides, and water all make growing these lawns not only labor intensive but costly as well.
There are sedges that grow in almost every climate and habitat on the planet. There are sedges that grow in wetlands as well as sand dunes full sun to part shade. The ones that are native to an area of course do best in that area but sedges are readily adaptable to a wide range of conditions. Once established a sedge lawn requires minimal mowing and almost no fertilizer or chemicals to keep it looking good. Being a native plant it is already adapted and is resistant to local pests and diseases. Once established most sedge lawns require mowing only 3 to 4 times a year, now how about that for a time saver.
The first thing to do if you are thinking about a sedge lawn is to check to see which type sedges will grow well in your climate and conditions. While sedges can be grown from plugs or seeds it is important to note that most sedge seeds have a very short period they are viable and so germination rates are usually poor. That is why most sedge lawns are installed by planting plugs. A good rule of thumb to figure how many plugs you will need is to figure on two plugs per square foot. There is a bit more to it than just plopping some plugs in the ground and then waiting for the sedge lawn to appear. Just like establishing a turf grass lawn you need to prepare the site and get it ready for planting.
To establish a sedge lawn you need to clean the area of all vegetation and be sure that it is weed free. Most soil is fine with out and amendment unless it is very hard clay then 2″ of compost should be tilled in. Plant your plugs then top dress them with compost. You may fertilize them with a good turf grass starter fertilizer to give them a jump start. Mow them once a month throughout the growing season. This monthly mowing will stimulate tillering encouraging thick growth and more rapid establishment.
Once established I think you will find that a sedge lawn not only looks good it really reduces labor and costs while adding an element of unique beauty to your landscape.