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Supertunia® Vista Silverberry Petunia hybrid

  • Exposure
    • Sun
  • Season
    • Spring
    • Summer
  • Mature Size
    • 16 - 24 Inches
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Supertunia® Vista Silverberry Petunia hybrid

Sun 16 - 24

Features

Consider me PLANT therapy.

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.

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Heat Tolerant
Deadheading Not Necessary
Attracts: 
Butterflies

Characteristics

Duration: 
Annual
Height Category: 
Medium
Garden Height: 
16 - 24 Inches
Trails Up To: 
60 Inches
Spacing: 
18 - 24 Inches
Flower Colors: 
White
Flower Shade: 
White
Foliage Colors: 
Green
Foliage Shade: 
Green
Habit: 
Mounded
Container Role: 
Filler

Plant Needs

Light Requirement: 
Sun
Maintenance Category: 
Easy
Bloom Time: 
Planting To Hard Frost
Hardiness Zones: 
10a, 10b, 11a, 11b
Water Category: 
Average
Uses: 
Container
Uses: 
Landscape
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.

Late July and August is when plants should be at their best, but there is only one problem: The plants have run out of energy and the gardeners realize it too late to help the plants recover. This is especially true in raised containers and hanging baskets. Here is the best way to keep your Petunias in the Super category.

1. When you buy them in the spring, buy a slow release fertilizer to top dress the basket or container. If you plant your own basket, incorporate some of the slow release fertilizer in the soil as you plant. Follow the package directions.

2. In May fertilize with a water-soluble fertilizer once every two weeks. Mix up the fertilizer and water the plants just like you would if you were using clear water. It normally takes a good half of gallon of water
To really water a 10" wide basket or raised container.

3. In June as the weather starts to get warm to hot, fertilize weekly, again with a good soaking. If the weather turns really hot as it sometimes does in
Late June you may need to fertilize every third watering. By now the Supertunia is really growing and starting to tumble down from the basket or fill out across the flowerbed.

4. July is when the cutting back occurs. Around the 4th of July, (after your big party) get some of the slow release fertilizer that you bought in spring and re-apply across the top of the planter. At the same time, trim back
some of the longer branches just enough to bring the plant back in line with the bottom of the pot or basket. Don't remove too much at the maximum cut back 20% of the branches or 1 in five shoots. You can also just give it a general light trim. Your plant will be out of flower for a few days, but will come back stronger than ever. By now with July's heat you should be watering at least every other day and begin to fertilize every other watering. I know it sounds like a lot, but if you want a plant to grow like an elephant and be the most it can be, you got to feed it like an elephant!

5. August is, hot, humid, & sometimes with monsoons. Keep up the water and fertilizing, and again, if the plant starts to look straggly remove a few more branches but never more than 20% or give it a general trim as before.

6. It is September and the plants should still look good, start to back off the watering and the feed, but shape the basket with the last pruning of the season.

I know it sounds like a lot of work, but it really is a labor of love. I fertilize my baskets and my garden every time I water, and I water daily from mid July through August. I recently invested in the WaterWise irrigation system and let me tell you it really works. You will find that your Supertunias, along with all the rest of your plants will keep looking fantastic through September and perhaps with the luck of a gardener and a late frost maybe even into October.

The Best Petunia. Period.

Supertunia® Vista Silverberry Petunia hybrid 'USTUNI6001M' PP: 20903 Can. PP: 3866

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2012 Top Performer University of Tennessee
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