Zoysia japonica

[3] Today, Z. japonica has become one of the most widely used species of turfgrass in the United States and other countries worldwide such as in Brazil,[5] serving as a close and cheaper alternative to bermudagrass.

[3] Its high tolerance to drought, freezing temperatures, salt, and shade make for a favorable lawn grass.

[10] Although it is tolerant to freezing temperatures, it does lose its bright green color, turning brown after frost.

[8] Although Z. japonica is one of the only Zoysia species that can be seeded, it has a lengthy germination rate of at least a month, so vegetative planting is the primary form of cultivation.

[12][9] Z. japonica seeds require a moist environment and a temperature of at least 70 °F (21 °C) to germinate, and therefore sod, sprigs, and plugs are less prohibitive methods of planting.

[12] Upkeep of Z. japonica varies based on uses, in general requiring a moderate level of nitrogen fertilizer to keep its density.

[3] One major problem with Z. japonica in recreational landscapes is its seeding in spring, which is aesthetically unacceptable requiring additional maintenance costs.

[13][14] Brosnan et al., 2012 suppresses seedhead development with imidazolinones without killing the grass, and Patton et al., 2018 achieves the same result with ethephon.

Carpet tile of 40 by 62.5 centimetres (16 in × 25 in)
Seedhead close up
Used as golf course turfgrass