I just got into desert roses last year. I have 3 hybrids an a few req. I love them. BUT I am doing something wrong. For about a month now they are growing great but the leaves are pointing straight up. I live in Central Tx. The temps are above 100 everyday. They get over 8 hours of direct sun. I water every 3-4 days sometimes more. Someone said to much fert. I fert. Once a month. Any thoughts??