White Flower Farm Iris germanica Immortality

It means the plant is genetically capable of flowering twice in a single growing season. You will get a primary flush of white blooms in late spring, followed by a second, reliable wave of flowers in late summer or early fall.

This iris requires full sun, which means at least six to eight hours of direct sunlight daily. If planted in partial shade, the plant may survive, but you will likely sacrifice the second wave of blooms.

Yes, the foliage is generally unpalatable to deer, making it a safer choice for gardens that experience frequent browsing. While no plant is 100% deer-proof, this variety is rarely targeted compared to more tender perennials.

Plant them 18 to 24 inches apart. This spacing allows for proper air circulation, which is crucial for preventing fungal issues, and gives the rhizomes enough room to spread as the plant matures.

The most critical requirement is excellent drainage. Iris rhizomes will rot if they sit in wet, heavy soil, so ensure your planting site is well-amended or elevated if you have clay-heavy ground.

Yes, the vertical, sword-like foliage remains attractive and upright throughout the growing season. It provides good structural contrast to other perennials even when the plant is not in bloom.