Supertunia® Blue Tiara™ is a regal addition to the Proven Winners collection, prized for its exceptionally clear, true-blue to violet-blue flowers. While many "blue" flowers in the petunia world lean toward purple, Blue Tiara maintains a cooler, more serene tone. It is characterized by its medium-sized blooms and a vigorous, tidy growth habit that ensures the plant remains covered in color without becoming unruly. Like its Supertunia siblings, it is bred for extreme weather resilience and consistent performance.
Mature size: 6–12 inches in height; spreads or trails up to 18–24 inches.
Flower: Abundant, medium-sized blooms in a striking shade of cool violet-blue with a subtle dark throat.
Foliage: Healthy, mid-green foliage that is densely packed along the stems, providing a full and lush appearance.
Hardiness: Annual; perennial in USDA zones 10–11.
This variety performs best in Full Sun (6+ hours of direct sunlight per day). Adequate light is vital to maintain the "blue" pigment of the flowers and to ensure the plant produces enough energy to sustain its heavy bloom count.
Requires consistent moisture. Supertunias have a fast metabolism and should be watered whenever the top inch of soil feels dry. In the heat of summer, plants in containers or hanging baskets may need daily watering to prevent stress.
Thrives in well-drained, fertile soil. For container gardening, a high-quality potting mix is essential. It prefers a slightly acidic environment (pH 5.5–5.8). If the soil becomes too alkaline, the plant may struggle to take up iron, resulting in yellowing leaves.
As a high-performance plant, it is a heavy feeder. Use a water-soluble fertilizer every 1–2 weeks throughout the growing season. A slow-release fertilizer applied at planting time provides a helpful steady supply of nutrients to supplement the liquid feedings.
Supertunia Blue Tiara is self-cleaning, so no deadheading is necessary for continuous bloom. To keep the plant looking its best, give it a "haircut" in mid-summer by trimming back the longest stems by about 20%. This encourages branching and prevents the "bald spot" that can sometimes occur at the center of the plant.
The cool tones of Blue Tiara make it a sophisticated choice for various garden settings:
Monochromatic Containers: Creates a peaceful, elegant look when planted alone.
Cool-Toned Combinations: Pairs beautifully with white (like Snow Princess® Alyssum) or silver foliage (like Artemisia).
Hanging Baskets: Its mounding-trailing habit creates a full, rounded display that cascades gracefully over the edges.
Supertunia Blue Tiara offers a touch of royalty to the garden with its rare and sought-after cool blue hues. Its combination of low-maintenance "self-cleaning" flowers and high-vigor growth makes it a dependable choice for gardeners who want professional-looking results with minimal effort.
4.25” Proven Winners Eco Pot
NOTE: Available for pickup after 5/15
Supertunia® Blue Tiara™ is a regal addition to the Proven Winners collection, prized for its exceptionally clear, true-blue to violet-blue flowers. While many "blue" flowers in the petunia world lean toward purple, Blue Tiara maintains a cooler, more serene tone. It is characterized by its medium-sized blooms and a vigorous, tidy growth habit that ensures the plant remains covered in color without becoming unruly. Like its Supertunia siblings, it is bred for extreme weather resilience and consistent performance.
Mature size: 6–12 inches in height; spreads or trails up to 18–24 inches.
Flower: Abundant, medium-sized blooms in a striking shade of cool violet-blue with a subtle dark throat.
Foliage: Healthy, mid-green foliage that is densely packed along the stems, providing a full and lush appearance.
Hardiness: Annual; perennial in USDA zones 10–11.
This variety performs best in Full Sun (6+ hours of direct sunlight per day). Adequate light is vital to maintain the "blue" pigment of the flowers and to ensure the plant produces enough energy to sustain its heavy bloom count.
Requires consistent moisture. Supertunias have a fast metabolism and should be watered whenever the top inch of soil feels dry. In the heat of summer, plants in containers or hanging baskets may need daily watering to prevent stress.
Thrives in well-drained, fertile soil. For container gardening, a high-quality potting mix is essential. It prefers a slightly acidic environment (pH 5.5–5.8). If the soil becomes too alkaline, the plant may struggle to take up iron, resulting in yellowing leaves.
As a high-performance plant, it is a heavy feeder. Use a water-soluble fertilizer every 1–2 weeks throughout the growing season. A slow-release fertilizer applied at planting time provides a helpful steady supply of nutrients to supplement the liquid feedings.
Supertunia Blue Tiara is self-cleaning, so no deadheading is necessary for continuous bloom. To keep the plant looking its best, give it a "haircut" in mid-summer by trimming back the longest stems by about 20%. This encourages branching and prevents the "bald spot" that can sometimes occur at the center of the plant.
The cool tones of Blue Tiara make it a sophisticated choice for various garden settings:
Monochromatic Containers: Creates a peaceful, elegant look when planted alone.
Cool-Toned Combinations: Pairs beautifully with white (like Snow Princess® Alyssum) or silver foliage (like Artemisia).
Hanging Baskets: Its mounding-trailing habit creates a full, rounded display that cascades gracefully over the edges.
Supertunia Blue Tiara offers a touch of royalty to the garden with its rare and sought-after cool blue hues. Its combination of low-maintenance "self-cleaning" flowers and high-vigor growth makes it a dependable choice for gardeners who want professional-looking results with minimal effort.
4.25” Proven Winners Eco Pot
NOTE: Available for pickup after 5/15
