Most zoysiagrass cultivars, including El Toro, are started with plugs, 2- to 4-inch, square or circular pieces of sod that are planted on 6- to 14-inch centers. The clumps spread out and eventually grow together to create a dense, solid lawn. Depending on location and weather, zoysiagrass lawns started from plugs can take a year or more to fill in completely. Most seed-started zoysiagrass lawns are inferior in quality and vigor to those started vegetatively, but Zenith seed produces a high-quality lawn. The seed is available through Patten Seed of Lakeland, Georgia.
El Toro is the fastest-establishing zoysiagrass, producing a dense lawn two to three times quicker than other cultivars. However, because Zenith zoysiagrass is grown from seed, even newly-planted Zenith lawns, though thin and sparse, have a more uniform appearance than new El Toro lawns, where you'll see soil patches between the expanding plugs until they grow together.
El Toro zoysiagrass is dark green, while Zenith is medium-to-dark. Both grasses are moderately dense and create little thatch buildup. Zenith and El Toro are both considered coarse-textured grasses, but El Toro has softer leaves while Zenith has a finer texture.
All zoysiagrass grows best in full sun, but El Toro is more shade-tolerant than most zoysia cultivars. This adaptability makes it a good choice for home landscapes, which typically include both sunny and shaded areas. Data on the shade tolerance of Zenith is not available.
According to turfgrass specialists at the University of Arkansas, Zenith zoysiagrass is more cold-hardy than El Toro and so is less likely to suffer cold injury during harsh winters. Both cultivars have excellent heat hardiness.