Superbena® Whiteout™ is a high-performance verbena hybrid celebrated for its exceptional vigor and pristine, snow-white floral display. Developed by Proven Winners, this cultivar is engineered for superior heat and humidity tolerance compared to traditional verbenas. It features a mounding-trailing habit that makes it a versatile "filler" and "spiller" in garden designs. Known for being self-cleaning and highly resistant to powdery mildew, it provides a low-maintenance solution for season-long brightness from spring through the first hard frost.
Mature size: 6–12 inches in height with a spread of 18–30 inches; stems can trail up to 24 inches.
Flower: Large, pure white flower clusters (umbels) that bloom continuously from planting until a hard frost.
Foliage: Bright green, toothed leaves with a textured, quilted appearance; maintains a lush, dense carpet throughout the season.
Hardiness: Typically grown as an annual; perennial in USDA zones 8–11.
This variety performs best in full sun (6+ hours of direct light) to ensure the most profuse blooming and tightest growth habit. It can tolerate part shade, though flowering may be slightly reduced and the stems may become more elongated.
Superbena Whiteout has average water needs and is relatively drought-tolerant once established. For optimal performance, maintain consistent moisture; water when the top inch of soil feels dry to the touch. Plants in containers will require more frequent watering, often daily during peak summer heat.
Requires well-drained soil rich in organic matter. While adaptable to various soil types (sandy or clay-loam), it will struggle in heavy, waterlogged conditions. A neutral to slightly acidic pH is ideal. When planting in containers, use a high-quality professional potting mix.
To sustain its vigorous blooming habit, use a water-soluble fertilizer every 1–2 weeks for container plants. In landscape beds, a continuous-release fertilizer applied at planting, or a top-dressing of compost, is usually sufficient to power the plant through the season.
This is a self-cleaning plant, meaning deadheading (removing spent blooms) is not necessary for continuous flowering. While it does not require regular pruning, a "haircut" (trimming back up to 20% of the growth) in mid-summer can help rejuvenate the plant, encourage fresh branching, and prevent a leggy appearance.
Due to its trailing nature, Superbena Whiteout is an elite "spiller" for hanging baskets, window boxes, and combination planters. In the landscape, it serves as an excellent high-visibility groundcover or front-of-border edging plant. Its bright white flowers are particularly effective in "moon gardens" and attract pollinators like butterflies and hummingbirds while remaining notably deer-resistant.
Superbena® Whiteout™ stands out as a premier choice for gardeners seeking a "set-it-and-forget-it" white annual. Its combination of mildew resistance, heat endurance, and self-cleaning flowers ensures a crisp, clean aesthetic in both containers and landscapes with minimal effort.
4.25” Proven Winners Eco Pot
NOTE: Available for pickup after 5/15
Superbena® Whiteout™ is a high-performance verbena hybrid celebrated for its exceptional vigor and pristine, snow-white floral display. Developed by Proven Winners, this cultivar is engineered for superior heat and humidity tolerance compared to traditional verbenas. It features a mounding-trailing habit that makes it a versatile "filler" and "spiller" in garden designs. Known for being self-cleaning and highly resistant to powdery mildew, it provides a low-maintenance solution for season-long brightness from spring through the first hard frost.
Mature size: 6–12 inches in height with a spread of 18–30 inches; stems can trail up to 24 inches.
Flower: Large, pure white flower clusters (umbels) that bloom continuously from planting until a hard frost.
Foliage: Bright green, toothed leaves with a textured, quilted appearance; maintains a lush, dense carpet throughout the season.
Hardiness: Typically grown as an annual; perennial in USDA zones 8–11.
This variety performs best in full sun (6+ hours of direct light) to ensure the most profuse blooming and tightest growth habit. It can tolerate part shade, though flowering may be slightly reduced and the stems may become more elongated.
Superbena Whiteout has average water needs and is relatively drought-tolerant once established. For optimal performance, maintain consistent moisture; water when the top inch of soil feels dry to the touch. Plants in containers will require more frequent watering, often daily during peak summer heat.
Requires well-drained soil rich in organic matter. While adaptable to various soil types (sandy or clay-loam), it will struggle in heavy, waterlogged conditions. A neutral to slightly acidic pH is ideal. When planting in containers, use a high-quality professional potting mix.
To sustain its vigorous blooming habit, use a water-soluble fertilizer every 1–2 weeks for container plants. In landscape beds, a continuous-release fertilizer applied at planting, or a top-dressing of compost, is usually sufficient to power the plant through the season.
This is a self-cleaning plant, meaning deadheading (removing spent blooms) is not necessary for continuous flowering. While it does not require regular pruning, a "haircut" (trimming back up to 20% of the growth) in mid-summer can help rejuvenate the plant, encourage fresh branching, and prevent a leggy appearance.
Due to its trailing nature, Superbena Whiteout is an elite "spiller" for hanging baskets, window boxes, and combination planters. In the landscape, it serves as an excellent high-visibility groundcover or front-of-border edging plant. Its bright white flowers are particularly effective in "moon gardens" and attract pollinators like butterflies and hummingbirds while remaining notably deer-resistant.
Superbena® Whiteout™ stands out as a premier choice for gardeners seeking a "set-it-and-forget-it" white annual. Its combination of mildew resistance, heat endurance, and self-cleaning flowers ensures a crisp, clean aesthetic in both containers and landscapes with minimal effort.
4.25” Proven Winners Eco Pot
NOTE: Available for pickup after 5/15
