Despite these conditions, the grape hyacinth has thrived. And, it is a pretty flower.
Grape hyacinths are small, spiked flowers resembling a bunch of grapes. Early spring bloomers, their fragrance is delicate and most welcomed after a long winter. Bees, especially the bumble bee, love it.
When in bloom, Muscari armeniacam is a gorgeous, deep cobalt blue. Another positive characteristic of this bulb is that it spreads. The plantings in this narrow space have increased over the years, and, after 15 years, have taken on the appearance of a a blue carpet.
Hardy, no care. Grape hyacinths do well in Zone 5.