Botanical Name: Evolvulus glomeratus ‘Hawaiian Blue Eyes’ Common Name: Blue Daze Hardiness Zone: Perennial in Warm Regions (USDA Zones 9–11); Grown as an Annual Elsewhere Size: 6–12" Tall × 18–30" Spread Growth Habit: Low-Growing, Spreading, Softly Mounding Habit Sunlight: Full Sun (Best Flowering and Growth) Soil: Prefers Well-Drained Soil; Performs Well in Sandy or Lean Soils Water Needs: Low to Moderate; Drought Tolerant Once Established Bloom Season: Late Spring through Fall Fertilizer: Light Feeding; Avoid Excess Nitrogen Features: Bright True-Blue Flowers with White Centers, Silvery-Green Foliage, Excellent Heat Tolerance, Heavy Blooming Uses: Ideal for Groundcover, Containers, Hanging Baskets, Mass Plantings, and Sunny Borders Patent: ❌ Not Patented Propagation: ✔ Propagation Permitted

See our complete Blue Daze Plant Guide for more in depth care details.

More About Evolvulus ‘Hawaiian Blue Eyes’

Evolvulus ‘Hawaiian Blue Eyes’ is a vigorous and floriferous Blue Daze variety known for its abundant true-blue flowers accented by crisp white centers. The blooms open fresh each morning in bright sunlight and continue appearing daily from late spring through fall, creating a steady and eye-catching display. Its flowering is especially strong in hot weather, where color intensity remains consistent rather than fading.

The foliage is soft, narrow, and silvery-green, providing a cooling contrast to the vibrant blue flowers while helping the plant tolerate intense sun and heat. Compared to more compact selections, Hawaiian Blue Eyes spreads more freely, giving it a relaxed, flowing appearance that works beautifully in landscapes and large containers. Its natural form looks lush and intentional without frequent trimming.

Why We Like It (Our Trials)

In our trials, Hawaiian Blue Eyes has proven to be a standout for fast coverage and heavy flowering in full sun. It establishes quickly, spreads evenly, and fills space without becoming invasive or unruly. Even during extended heat, plants continue blooming reliably with minimal supplemental watering once established.

We especially like this variety for mass plantings and groundcover applications where visual impact and coverage matter most. It performs equally well spilling from containers or softening the edges of sunny beds and walkways. For gardeners who want bold blue color with a more relaxed growth habit, Hawaiian Blue Eyes is an excellent choice.

Hawaiian Blue Eyes vs. Other Blue Daze

Hawaiian Blue Eyes distinguishes itself within the Evolvulus family by offering a more vigorous and free-spreading habit paired with abundant, slightly larger blue flowers that feature crisp white centers. Compared to compact varieties like Blue My Mind® and Beach Bum® Blue, which are bred for tighter form and more uniform structure, Hawaiian Blue Eyes spreads more broadly and fills space quickly—making it especially well suited for mass plantings and expansive garden beds.

While its bloom intensity and spreadability make it a standout in hot, sunny conditions, plants may appear looser in form compared to the refined, tidy profiles of the more compact cultivars. For gardeners seeking bold color and fast coverage where a relaxed, flowing look is preferred, Hawaiian Blue Eyes offers a unique balance of vigor, heat tolerance, and nonstop summer blooms that sets it apart from other Blue Daze selections.