Botanical Name: Catharanthus roseus ‘Valiant™ Lilac’

Common Name: Annual Vinca, Madagascar Periwinkle

Hardiness Zone: Grown as an Annual in All Climates

Size: 14–18" Tall × 14–18" Wide

Growth Habit: Upright, Mounded, Well-Branched

Sunlight: Full Sun

Soil: Well-Drained Soil; Tolerates Poor or Sandy Soils

Water Needs: Low Once Established; Drought Tolerant

Bloom Season: Late Spring through Frost

Fertilizer: Light Feeding; Avoid Excess Fertility

Features: Soft Lilac-Purple Blooms with Subtle Eye, Excellent Heat Tolerance, Strong Disease Resistance, Continuous Flowering

Uses: Landscape Beds, Borders, Containers, Mass Plantings, High-Heat Areas

Patent: ✔ Patented

Propagation: ❌ Propagation Prohibited Without License

More About Vinca ‘Valiant™ Lilac’ (Annual Vinca)

Valiant™ Lilac brings a softer, more relaxed color option to the Valiant™ Series. The blooms are a light lilac-purple that reads calm and balanced rather than bold, making it easy to blend into mixed plantings. Even during peak summer heat, the color stays clean and doesn’t fade or wash out.

Like other Valiant™ Vincas, this variety forms a sturdy, evenly branched mound that fills in quickly and stays neat. It was bred specifically for improved disease resistance, which shows up clearly in hot, humid conditions where older Vincas often struggled. The foliage stays healthy while the plant continues flowering steadily.

Valiant™ Lilac thrives in full sun and well-drained soil and prefers a lighter touch when it comes to watering. Once established, it handles drought with ease and keeps blooming right through summer and into fall. Overwatering or rich soil can slow it down, so simple care delivers the best results.

Why We Like It (Our Trials)

At Garden Delivery, Valiant™ Lilac has performed consistently in exposed, high-heat areas. In our trials, it stayed compact and clean while continuing to flower through the hottest part of the season. The softer color didn’t bleach or dull, even under intense sun.

We also appreciate how versatile the color is. Lilac pairs beautifully with whites, silvers, deeper purples, and even bold yellows. For gardeners who want dependable summer color that feels calm rather than loud, this Vinca is an excellent choice.