Botanical Name: Calibrachoa × hybrida ‘Superbells® Double Twilight’

Common Name: Calibrachoa, Million Bells

Hardiness Zone: Annual in Most Climates

Size: 6–10" Tall × 12–18" Spread

Growth Habit: Trailing, Mounding, Well-Branched Habit

Sunlight: Thrives in Full Sun

Soil: Prefers Well-Drained, Fertile Soil

Water Needs: Moderate; Allow Slight Drying Between Waterings

Bloom Season: Spring through Frost

Fertilizer: Regular Feeding with a Balanced or Slightly Acidic Fertilizer

Features: Fully Double Smoky Purple Blooms with Yellow Centers, Rose-Like Form, Heavy Flower Coverage, Excellent Heat Tolerance, Self-Cleaning

Uses: Ideal for Hanging Baskets, Containers, Window Boxes, and High-Contrast Color Schemes

Patent: ✔ Patented

Propagation: ❌ Propagation Prohibited Without License

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

More About Calibrachoa ‘Superbells® Double Twilight’

Calibrachoa ‘Superbells® Double Twilight’ is prized for its fully double, rose-like blooms in rich smoky purple tones accented by warm golden-yellow centers. The layered petals give the flowers depth and texture, creating a dramatic, evening-inspired look that stands out in containers and hanging baskets.

As part of the award-winning Superbells® series, this variety combines ornamental impact with proven performance. Despite its double flowers, ‘Double Twilight’ blooms heavily and continuously from spring through frost, maintaining a balanced, trailing habit without thinning out.

Why We Like It (Our Trials)

In our trials, ‘Superbells® Double Twilight’ has been a standout performer in full-sun containers, holding its rich color and dense bloom coverage through summer heat and humidity. With regular feeding, it trails evenly and remains lush all season long.

We especially like its design versatility. The moody purple tones pair beautifully with whites, chartreuse foliage, silvers, and bright yellows, making it an excellent anchor plant in mixed containers. Flowers are self-cleaning, keeping maintenance minimal.

Calibrachoa ‘Superbells® Double Twilight’ vs. Other Calibrachoa

Superbells® Double Twilight is one of the most visually dramatic doubles in the Superbells® Series, defined by deep coloration, shadowed tones, and a richly layered flower form. Compared to Double Amber, Superbells® Double Twilight immediately reads cooler and more enigmatic, trading warmth for depth and atmosphere. When placed beside Superbells® Doublette Love Swept, the contrast is one of structure and intent—Double Twilight feels bold and architectural, while Love Swept remains soft, airy, and romantic. Compared to single-flowered selections like Blackcurrant Punch, Double Twilight adds an extra level of dimension and substance, using petal layering to create depth that single blooms simply can’t replicate.

When evaluated alongside darker Cabaret® Selections, Double Twilight delivers noticeably more mass and flower presence, while Cabaret maintains a tighter, more controlled habit. Compared to the Cha-Cha™ Series, which brings high energy and vivid movement, Double Twilight feels more composed and refined, favoring drama over exuberance. When set near Caliloco Dracula, Double Twilight reads as the more classic and wearable option—still dark and impactful, but without crossing into novelty. The result is a Calibrachoa that offers bold sophistication and texture, making Superbells® Double Twilight a standout choice for containers that aim to feel dramatic yet timeless.