22 Winter Flowers That Thrive During the Coldest Months of the Year

Witch Hazel: An interesting byproduct of planting related species side by side is that pollinating insects can become unwitting hybridizers. Such was certainly the case with one of the Arboretum's most famous introductions, Hamamelis × intermedia 'Arnold Promise'. A beautiful and vigorous witch hazel, 'Arnold Promise' was named to honor the place where it began, a happy accident of nature. Witch hazel is incredibly fragrant and has myriad medicinal uses.