Botanical Name: Diascia barberae ‘Darla® Rose’

Common Name: Diascia, Twinspur

Hardiness Zone: Perennial in Mild Climates (USDA Zones 7–10); Grown as an Annual Elsewhere

Size: 8–12" Tall × 12–18" Spread

Growth Habit: Compact, Mounding, Well-Branched Habit

Sunlight: Full Sun to Partial Shade (Best with Afternoon Shade in Hot Climates)

Soil: Well-Drained, Average to Fertile Soil

Water Needs: Moderate; Consistent Moisture for Best Performance

Bloom Season: Spring through Fall (Strongest in Cooler Weather)

Fertilizer: Light, Regular Feeding During Active Growth

Features: Rich Rose-Pink Flowers, Dense Mounded Habit, Long Bloom Season, Pollinator Friendly

Uses: Containers, Borders, Edging, Mass Plantings, Cool-Season Color

Patent: ✔ Patented

Propagation: ❌ Propagation Prohibited Without License

See our complete Diascia Growth & Care Guide for full care details.

More About Diascia Darla® Rose

Diascia Darla® Rose is a vibrant twinspur variety valued for its deeper rose-pink blooms and naturally tidy, mounding growth habit. It offers a stronger color presence than lighter Darla selections while maintaining the same controlled structure that makes the series so easy to use in garden design.

Flowers are produced generously from early spring through fall, with peak performance during cooler weather. In mild climates, Darla® Rose can flower almost continuously, delivering long-lasting color without stretching or losing form.

Why We Like It (Our Trials)

In our trials, Darla® Rose has been consistently uniform, well-branched, and dependable across containers and garden beds. It establishes quickly, requires little to no pinching, and maintains a full, balanced shape throughout the growing season.

We especially like this variety when a bit more color saturation is needed. The rose-pink flowers provide warmth and contrast in mixed containers, pair beautifully with whites and silvers, and stand out nicely in mass plantings without overpowering neighboring plants. Pollinators visit regularly.

Darla® Rose vs. Other Diascia

Darla® Rose is the most saturated and visually assertive color within the Darla® Series, offering a deeper pink that stands out more clearly than Light Pink. While still refined, its stronger hue gives it more presence in containers and mass plantings. Compared to Darla White, Darla Rose acts as a true color driver rather than a neutral accent. Structurally, Darla Rose maintains the same compact, well-branched habit as the other Darla selections, staying neat and uniform throughout the season.  Bloom density is excellent and comparable to Darla Light Pink and Darla White, with flowers covering the plant evenly.

When placed alongside Diascia ‘Coral Canyon®, Darla Rose reads cooler and more classic, while Coral Canyon® leans warmer and more energetic. It is more controlled and predictable than Coral Canyon®, which can feel slightly looser in mixed combinations. Darla Rose is the best choice when stronger color is needed without sacrificing the tidy Darla growth habit.