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’

‘Hawaiian Blue Eyes’ features clear, true, sky blue flowers accented by a crisp white eye that makes every bloom look freshly painted. From Late Spring through Fall it produces wave after wave of flowers that open with the morning sun and seem to glow against the foliage, and what impresses me most is how steady that performance remains as we move into the real heat of Summer. So many blue flowering plants lose their richness once temperatures climb into the upper nineties, but Hawaiian Blue Eyes holds its color with remarkable consistency, never bleaching out or looking tired even when the rest of the garden is feeling the strain. When customers ask for a dependable blue bloomer for Summer, this is one of the first varieties I walk them over to see.

Compared to tighter, more compact Blue Daze selections, Hawaiian Blue Eyes spreads with a more relaxed and natural habit, gently weaving its way through a bed or spilling with confidence over the rim of a large container. I personally love that slightly freer form, because it creates movement and softness in the landscape and fills space in a way that feels abundant rather than stiff or forced. In large combinations it acts almost like a living ribbon of blue, tying together bolder focal plants while still holding its own.

Why We Like It (Our Trials)

In our trials here in the Upstate, Hawaiian Blue Eyes has repeatedly proven itself as one of the fastest establishing Evolvulus varieties we grow. Once planted in Full Sun and given a short window to root in, it begins spreading evenly and predictably, covering ground without ever becoming aggressive or unruly. That balance is important to me, because I want strong coverage and impact without a plant that overwhelms its neighbors or requires constant correction. Even during extended stretches of Summer heat, when daytime temperatures stay high and rainfall becomes inconsistent, this variety continues blooming steadily with very little supplemental watering after establishment.

One of my favorite uses for Hawaiian Blue Eyes is in mass plantings where the goal is bold, uninterrupted color that reads clearly from a distance. When planted in drifts, the blue creates a calming but powerful statement that contrasts beautifully with chartreuse foliage, bright whites, or warm oranges. It also excels in large patio containers where it can spill over the edges and soften the lines of stone or ceramic, creating that lush, intentional look that customers are always trying to achieve. I have even used it along sunny walkways where its relaxed growth habit gently blurs the border between hardscape and planting bed, giving the entire area a more finished and inviting feel.

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.