Botanical Name: Diascia integerrima ‘Coral Canyon®’

Common Name: Diascia, Twinspur

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

Size: 12–18" Tall × 12–18" Spread

Growth Habit: Upright to Mounding, Well-Branched Habit

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

Soil: Well-Drained, Average to Fertile Soil

Water Needs: Moderate; Regular Water During Establishment

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

Fertilizer: Light, Regular Feeding During Active Growth

Features: Warm Coral-Pink Flowers, Compact Shrubby Habit, Long Bloom Season, Pollinator Friendly

Uses: Containers, Borders, Mass Plantings, Pollinator Gardens, Cool-Season Color

Patent: ✔ Patented

Propagation: ❌ Propagation Prohibited Without License

More About Diascia ‘Coral Canyon®’

Diascia ‘Coral Canyon®’ is a standout twinspur selection prized for its rich coral-pink flowers and compact, shrubby habit. Unlike traditional trailing diascia, this variety grows more upright and full, making it exceptionally useful in containers and garden beds where structure is desired.

The blooms appear in generous clusters and continue steadily through spring and fall, with the strongest performance during cooler temperatures. In regions with mild summers, flowering can continue nearly nonstop.

Why We Like It (Our Trials)

In our trials, ‘Coral Canyon®’ has been a reliable performer in containers and mixed plantings, especially during spring and fall. It establishes quickly, maintains a tidy shape, and produces consistent color without becoming leggy.

We especially appreciate its versatility. It works beautifully as a container filler, a front-of-border plant, or a mass planting where its warm coral tones add energy without overwhelming nearby plants. Bees and other small pollinators visit regularly.

Coral Canyon® vs. Other Diascia

Coral Canyon® stands apart from the Darla® Series due to its warmer coral-pink coloration and slightly bolder overall presence. Compared to Darla Light Pink, its color is richer and more energetic, immediately drawing the eye. Against Darla Rose, Coral Canyon® reads warmer and more playful, while Darla Rose remains cooler and more refined. When paired with Darla White, Coral Canyon® benefits from the contrast, allowing its coral tones to appear even more vibrant.

While still compact and well-suited to containers, Coral Canyon® feels less controlled than the Darla selections. The Darla varieties are more uniform and structured, making them ideal for mass plantings where consistency is critical. Coral Canyon®, by contrast, shines as a focal plant or accent within mixed containers. It blooms heavily like the Darla series but offers more personality and warmth, making it the best choice when visual punch is the goal.