These are the top 2 orange flowering plant flowers to grow in your garden given here:

1. Montbretia: Its scientific name is Crocosmia x crocosmiiflora. Its USDA growing zones are 5 to 9 and height goes up to 3 to 4 feet.
2. African Tulip Tree: Its scientific name is Spathodea campanulata. Its USDA growing zones are 10 to 11 and height goes up to 20 to 25 feet.

At present, there are in total 25 types of black flowers in the entire world. A few of their names are Silver Lace Black, Black Calla Lily, Black Velvet Petunia, Black Tulip, Black Viola, Black Hellebore, Black Barlow, Black Chocolate Cosmos, Persian Lily, Black Rose, Black Bearded Iris, Black Lily, Black Hollyhock, Chocolate Lily, Black Bat Flower, Black Dahlia, etc.