Bring the Outdoors Home

German Iris | Plant Profile

German Iris (Iris germanica) is a term to describe bearded iris’ and can come in a range of colors. The medium green foliage is deeply divided and sword shaped. Tall, rigid flower stalks each produce only one or two flowers at a time, but up to 6 over the course of the spring. The flowers have 6 segments. The three petals that point down are a darker color with brown veining and yellow bases. The top three petals are typically a lighter version of the lower petals.

German Iris prefers loosely packed, medium moisture, well drained soils in full sun.

German Iris perform best in full sun. They are attractive in sunny flower beds or areas where they are permitted to naturalize.


German Iris Characteristics

German Iris have attractive and interesting flowers that can come in a wide variety of colors. The best flowering occurs in full sun, though the plants can survive in light part shade. Good drainage is essential, so much that even a layer of mulch can cause root rot. Clay soils will not be tolerated and raised flower beds should be considered if desired in less than ideal conditions. They are spreading perennials that creep along by runners that occasionally root where they touch the ground, allowing them to naturalize.

German Iris will naturalize if permitted. Some fertilization can be appreciated in spring. Deadheading wilted flowers improves the overall look of the plant and makes room for additional blooms. After the blooming season, remove the entire flower stalk, to the ground, to make way for new growth next spring. Dividing the plants every few years can help to reduce overcrowding. Sparse flowering can be a result of planting too deep, too much shade or fertilizer, or overcrowding.

There are several disease and insect pests that can threaten the health of German Iris. Iris borer is the greatest insect threat. Disease issues can include root rot, crown rot, and leaf spot. Removing damaged or diseased foliage is the most effective defence against ailments. Cutting to the ground and removing all debris after the first frost can be beneficial.

USDA Climate Zone
Zones 3 - 10
2.00 - 3.00'
1.00 - 2.00'
Bloom Time
Full Sun
Deer Resistant?