You are correct about different strokes. Wild datura and morning glory tree are weeds over here, we prefer to go for other plants. As to our sun, thats killing. UV index eleven, summer temps under shade about 45C and in the open with heat getting reflected from concrete structures, it can easily cross 50C. Humidity lies between 10% to 30% except Monsoons, then it lies about 80%. Fifty miles from my house the temperate zone starts, then the story is different. I will include a few pictures of that zone. Have a garden there also. Its quite a contrast between the two. The pictures will explain.
Regards,
Masud.
