High-Rise Gardening: Nine Native Perennials to Brighten Your Balcony
Long-blooming annuals have traditionally been preferred for balcony gardens, but native perennials work just as well for those who are able to devote more time and attention to the maintenance of a garden. Perennials have an advantage over annuals in that they will last from year to year. Choosing plants with attractive foliage is essential, since flowering periods for natives are not as lengthy as those for non-native summer annuals.