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What's My Zone?Annual
Cultivar Notes - 'SuperbenaŽ Royale Silverdust'
Superbena Royale Silverdust has sweetly fragrand, blue-purple blooms. It is early to flower and has exceptional powdery mildew resistance. It has lighter pastel purple tones than Royale Chambray.
Series Notes - SuperbenaŽ Royale
Super large flowers, strong growth, and mildew resistance are Superbena's specialties. This tremendously improved Verbena is like nothing you've ever seen. Superbena has a fantastic range of knock-out colors and an upright trailing/cascading habit.
Superbena are our most vigorous, heat tolerant, and mildew tolerant series. While always great in containers they are also fantastic in landscape beds. They can tolerate dry soils and lower fertility. Normally either an application of slow release fertilizer or amending with compost is enough to keep them happy and blooming in landscape beds. They shouldn't need to be trimmed back but can be given a "haircut" - a trim back - using a sharp pair of scissors or pruning shears at any time. While naturally well branched, trimming them back will encourage additional branching, fuller plants, and ultimately more flowers.
Superbena Royale verbenas are vigorous and mounded, but will trail over the sides of containers. They will function as both spillers and fillers in combination planters and are best planted at the front of landscape beds. Flower and umbel size are typical for verbena. They will bloom earlier in the season and more easily produceable in smaller containers than regular Superbena varieties.
Genus Notes - Verbena
Familiar to many gardeners as annuals, Verbenas also include several outstanding perennials for mild-winter climates. Colorful and carefree, they flower even in extreme heat and humidity.
Container Ideas Using This Plant