This is one part in a weekly series featuring the UC Davis Arboretum’s “Garden Gems” series – 45 can’t-fail, easy-care, low-water plants well adapted to our region and that add sparkle to drought-tolerant landscapes.
Re-blooming golden tall bearded iris
Iris “Golden Immortal”
Size: Clumps reach 12 to 18 inches tall; 3-foot bloom stems.
Bloom season: Large golden yellow flowers in spring and fall.
Exposure: Full sun.
Pruning needs: Remove old foliage in late fall or winter and divide rhizomes every few years.
Water needs: Low; once established, water deeply once or twice a month.
Snapshot: “Golden Immortal” lives up to its varietal name; its sunny flowers keep coming back. Most bearded irises bloom just once in spring, but this tough perennial blooms at least twice a year. A second round of tall spikes of showy golden flowers appears in fall when few other plants put on such a display. Clumps of spiky gray-green leaves look attractive most of the year before dying back in winter. This drought-resistant favorite naturalizes easily. Another plus: Deer don’t like it.
For more on “Garden Gems,” click on arboretum.ucdavis.edu.