The Best Petunia. Period.® Supertunia Vista petunias are very vigorous, with mounding habits that can reach up to 2 feet in height in the landscape and will trail over the edges of baskets and containers up to 4 feet by the end of the season. They are fantastic landscape plants and are great in large containers, where they function as both fillers and spillers. In garden beds, they will work either in the front or middle of the bed. They have medium-sized flowers. Continuous Bloom or Rebloomer Long Blooming Heat Tolerant Deadheading Not Necessary Drought Tolerant Attracts: Butterflies, Hummingbirds CHARACTERISTICS Plant Type: Annual Height Category: Medium Garden Height: 12 - 24 Inches Trails Up To: 36 Inches Spacing: 18 - 32 Inches Spread: 24 - 36 Inches Habit: Mounding Trailing Container Role: Filler PLANT NEEDS Light Requirement: Part Sun to Sun Maintenance Category: Easy Bloom Time: Planting To Hard Frost Hardiness Zones: 10a, 10b, 11a, 11b Water Category: Average Soil Fertility Requirement: Average Soil Uses: Container, Landscape, Mass Planting Uses Notes: Use in large combinations, containers and landscapes. Maintenance Notes: Self-cleaning, no deadheading necessary, this is not necessarily true of all Petunias. Fertilize often for best summer performance