With deep royal blue petals and a bright golden center, Clematis ‘Haku Ookan’ delivers a bloom show fit for royalty. This Japanese-bred beauty unfurls its large, 5-7” flowers in late spring, then makes a second grand entrance in late summer, ensuring your garden stays vibrant for months. The rich blue tones shift slightly with the light, sometimes flashing hints of violet, making it one of the most dynamic blue-flowered clematis available. Its compact growth makes it perfect for small gardens, trellises, fences, and even containers, proving that big beauty comes in refined packages.