Howdy, Tim from Aggieland Green here! I wish i had seen this thread sooner!
We care for lots and lots of Zoysia lawns, as well as all turfgrass varieties that grow in Texas. I must say, Zoysia is an extremely high quality turfgrass. I agree with the comments above on mowing. Proper mowing is a key to a healthy zoysia lawn. We've observed that the lawns that are mowed in the 2"-2.5" range perform much better with less problems. The theory of mowing heigh does not apply, and leads to problems.
Proper watering and fertilization are obviously important as well. Regular fertilization including slow-release is helpful for achieving the optimum density, color, and health. Begin in April or May, and do not fertilize with any soluble Nitrogen after Aug 15th. Water as needed on a deep, infrequent schedule. 1" per week is optimum during the summer months. Zoysia does not like to be overwatered.
Pros:
1. Not susceptible to chinch bugs and armyworms, and much less susceptible to fall webworms.
2. Much lower susceptibility to brown patch, although brown patch is still a concern in late fall.
3. Performs much better in shade than Bermuda hybrids, and slightly better than Raleigh St. Augustine.
4. Slower grower than St. Augustine
5. Does not require as much water as St. Augustine, and is less damaged if severely drought stressed.
Cons:
1. Slower to fill if damaged by winter damage or other circumstances where it needs to fill in.
2. Fairly high susceptibility to dollar spot. We are seeing a ton of dollar spot right now in Bermuda and Zoysia due to all of the recent moisture.
3. Mildly susceptible to late fall brown patch.
4. Performs its best if mowed with a reel mower, although not required. 99.9% of zoysia owners use rotary mowers.
Water in the morning, not at night with a sharp blade on a weekly basis between 2"-2.5" and keep it properly fertilized and protected from brown patch in the late fall. If you do that, you will enjoy a beautiful zoysia lawn!
Aggieland Green watering guidelines:
https://www.aggielandgreen.com/watering-guidelines