I have Cyp. reginae in our flower garden. Planted it there in the late 90's. It is in black dirt a slight depression. full sun until about 2:00 PM, then bright shade.
The flowers fade from more red to pink if I don't protect them with an umbrella.. during the bright time of day. No special care. We have squirrels, occassional deer any others but no problems. I do spray lightly with repellant.