Thanks to this fresh variety, the Palm isn't relegated to only tropical locales. Because the Windmill Palm is one of the most cold hardy palms available on the market today, it's a dream come true for those who want island-inspired good looks in colder climates. Plus, it's got the good looks to match its effortless ease. Magnificent in stature, the Windmill Palm has fresh, fan-like fronds that are arranged symmetrically in a bunched group. This forms a crown of stunning green foliage that grows atop the trunk and can grow 6 to 10 feet wide.