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These are the top 2 names of orange flowers given here:
1. Oriental Poppy: Its scientific name is Papaver orientale. Its USDA growing zones are 3 to 8 and height goes up to 2 to 4 feet.
2. Orange Calendula: Its scientific name is Calendula officinalis. Its USDA growing zones are 2 to 11 and height goes up to 2 to 3 feet.
1. Oriental Poppy: Its scientific name is Papaver orientale. Its USDA growing zones are 3 to 8 and height goes up to 2 to 4 feet.
2. Orange Calendula: Its scientific name is Calendula officinalis. Its USDA growing zones are 2 to 11 and height goes up to 2 to 3 feet.