It is January and already I can see the green spikes emerging from the mass of dead, brown leaves. Dwarf irises are one of the earliest bloomers in my zone 7 Virginia garden. These irises are only 4-5 inches tall and bloom solitary flowers in February and March. Mine have been in my garden for a long time, nothing bothers them.
Also known as netted iris, dwarf irises (Iris reticulata) are very small bulbs, covered with a fibrous netting. There are many cultivars; flower colors range from light to dark blue or light to dark purple. Preferring full sun and well-drained soil, they thrive in rock gardens, on steps and terraces, in containers, and can be forced to bloom indoors in pots. The flowers can be cut for small desk top vases, bringing early spring cheer to the office or home.
They are available to plant in the fall, along with other bulbs, at local garden centers or through bulb companies. Because they are so small though, buy at least a handful. Plant with roots pointing down, spike pointing up, three inches deep and three inches apart. Hardy to zone 5, they die back in the summer and come back in the spring every year. In my garden, ‘J.S. Dijt’ and ‘Harmony’ have thrived for years with no pests or diseases.