Warm climate with not too much rain because rice originates from tropical lowlands which are warm. It can also grow in nighttime as long as it doesn't go below 60 degrees because that would be too cold. It also does not need too much water to grow, over watering the plant can stunt the growth, but letting the soil dry out will dry out the nutrients that the rice needs to grow.
The English were there for centuries and fought numerous wars.
They did not have help from Spanish and were not familiar with the land because they didn't live there. They also were not able to get supplies easily because they lived overseas.
The greatest effect of the European intrusion into the Americas was to increase the Indian and mestizo population through intermarriage with the whites. The primary cause of the massive population decline among native Americans after the European arrival was not warfare but disease.