
Light Needs

Mature Height

Mature Spread
Supertunia Tiara® Blue Petunia (Petunia hybrid 'INPETTIABL') offers striking deep violet-blue petals paired with a soft white center, creating a mesmerizing effect in any sunny garden or container. The stems trail up to 36 inches and deliver a lush, draping display of color from spring through frost. The slightly mounded form serves as an ideal filler or spiller in mixed planters, while the bold flower hue draws attention. Its nonstop blooms and easy upkeep make it a go-to choice for seasoned gardeners and beginners alike.
Supertunia Tiara® Blue thrives in hot, dry conditions with minimal fuss, thanks to its drought tolerance and self-cleaning blooms. Butterflies, bees, and hummingbirds often stop by, adding motion and life to your space. Plant it near the front of landscape beds for a neat yet impactful border, or allow the trailing stems to cascade from hanging baskets and window boxes. Developed via cutting-edge breeding, Supertunia Tiara® Blue Petunia reliably delivers a splash of dynamic color all season long.
Supertunia Tiara® Blue Petunia Care
Provide moderately fertile, well-draining soil and six or more hours of direct sun each day. A light, consistent watering schedule helps maintain steady blooms without over-saturating the roots. Mix a controlled-release fertilizer into the soil at planting time; then follow up with regular feeding (weekly or bi-weekly) using a water-soluble formula for maximum performance.
Use sharp shears if the plant appears leggy, and remove any weak or broken stems to promote a healthier shape. Trimming spent stems by about 20% once or twice a season can encourage new branching and fresh growth. If an allover trim is performed, pair it with a dose of liquid plant food to jumpstart rejuvenation. In containers, keep an eye on moisture levels during peak summer heat; a thorough soak whenever the top inch of soil dries works best. Winter care is typically unnecessary for this annual in cooler regions, though some gardeners in zones 10 and 11 may overwinter it by transferring pots to a protected spot.
Supertunia Tiara® Blue Petunia Spacing
Position individual plants 12 to 24 inches apart for effective ground coverage or tight groupings in flowerbeds. When using containers, opt for a pot about 12 inches wide or more to offer ample room for root growth and trailing foliage.
Supertunia Tiara® Blue Petunia Information
USDA Hardiness Zones: 10 - 11 |
Plant Type: |
Light Exposure: Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight) |
Mature Height: 4 - 12 Inches |
Mature Spread: 1.5 - 2 Feet |
Spacing: 1 - 2 Feet |
Habit: Mounded, Trailing |
Flower Color(s): Purple |
Flower Description: Vivid Violet Blue With A White Center |
Bloom Period: Spring to Fall |
Foliage Type: Herbaceous |
Foliage Color(s): Green |
Foliage Description: Green |
Seasonal Interest: Spring Flowering, Summer Flowering, Fall Flowering, 3 Season Interest |
Watering: Average |
Resists: N/A |
Tolerates: Heat, Drought |
Attracts: Bees, Butterflies, Hummingbirds |
Container Role: Spiller |
Uses: Containers, Edging, Groundcovers, Hanging Baskets |
Features: Attracts Pollinators, Deadheading Not Necessary, Continuous Blooming or Rebloomer |
Brand: Proven Winners |
Common Name: Supertunia Tiara® Blue Petunia |
Other Name(s): Petunia |
Scientific Name: Petunia hybrid 'INPETTIABL' |
- SKU:
- STBPSUPER-GC
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Also Known As:
3.5" Container
Plant Age:
~ 6 months
Plant Size:
~ 3"-6"
Pot Size:
~ 4.5"H x 3.75"W
Volume:
~1.42 quarts

Also Known As:
4.25" Container
Plant Age:
~ 6 months
Plant Size:
~ 3"-6"
Pot Size:
~ 4.93"H x 4.25"W
Volume:
~1.56 pints

Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
~1.50 quarts

Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
~2.26-3.73 quarts

We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
All annuals, houseplants & vegetables, we provide a 30-day warranty to ensure that your plants thrive.

Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 31th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!