Iris sibirica ‘Harpswell Happiness’ is a graceful Siberian iris that adds brightness and elegance to any garden. Its blooms are pure white with lightly ruffled petals and a prominent golden-yellow signal at the base of the falls, creating a striking yet delicate contrast. The upright clumps of slender green foliage provide structure and seasonal interest, enhancing the beauty of the airy, delicate flowers. Planted in groups, this variety produces a luminous and serene display, ideal for borders, naturalistic plantings, or near water features.

This hardy perennial thrives in moist but well-drained soils and prefers full sun to partial shade. Flowering in early to mid-summer, ‘Harpswell Happiness’ is valued for its reliability, low maintenance requirements, and resilience. Its blooms attract pollinators such as bees and butterflies, adding ecological value while providing long-lasting visual appeal in a variety of garden settings.