Zoysia Grass has been traditionally grown from vegetative or hybrid (no seed) varieties. Now that the seeded versions of Zoysia Grass are available people are planting these quality seeded Zoysia varieties in droves.oysia Grass has been traditionally grown from vegetative or hybrid (no seed) varieties. Now that the seeded versions of Zoysia Grass are available people are planting these quality seeded Zoysia varieties in droves.
Yes cats can and will mate with siblings-they don't make choices about their reproduction like humans do, there's only hormones and instinct. Any kittens produced from a brother/sister pairing will be at greatly elevated risk for genetic deformities and diseases. Get the cats fixed and avoid the problem altogether.
Furthermore, when a male cat becomes sexually mature, he will also try to mate with his mother, if she is around. Unlike humans -- well, most humans, anyway -- cats (and dogs) do not recognize that having sex with members of your family is a major no-no.