The Metrosidero of the Library

New Zealand's Christmas tree has adapted well to a country that celebrates the holiday in December for entirely unrelated reasons. This metrosideros, a species Māori communities call pōhutukawa and prize for the blaze of red flowers it produces each southern summer, stands near the Biblioteca Almeida Garrett inside the Jardins do Palácio de Cristal, and it is currently under review for formal protection as a tree of public interest. In its native New Zealand the species flowers in December, coinciding with the Southern Hemisphere summer, which is how it earned its English common name; transplanted to Porto's Northern Hemisphere climate, its flowering calendar shifts to match local seasons instead. It shares this corner of the garden with a Washingtonia palm and a scattering of camellias, part of the eclectic plant collection assembled here since the gardens were laid out in the 1860s by German landscape architect Émile David. The library beside it, built decades after the original planting, inherited the metrosideros as an established feature of the grounds rather than the other way around. Most visitors walking to the library's entrance pass directly under its canopy without knowing they're standing beneath one of the southern hemisphere's most photographed flowering trees.