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Supertunia® Really Red Petunia hybrid

  • Hardy Zones
    • 9 - 11
  • Exposure
    • Sun
  • Season
    • Spring
    • Summer
  • Mature Size
    • 6 - 10 Inches
Proven Winners
Supertunia® Really Red Petunia hybrid
Sun 6 - 10


Don't hate me because I'M BEAUTIFUL.

Fast growing plants with beautiful red flowers all season

Best Seller
Heat Tolerant
Deadheading Not Necessary


Height Category: 
Garden Height: 
6 - 10 Inches
8 - 12 Inches
8 - 12 Inches
Flower Colors: 
Flower Shade: 
Foliage Colors: 
Foliage Shade: 
Container Role: 

Plant Needs

Light Requirement: 
Maintenance Category: 
Bloom Time: 
Planting To Hard Frost
Hardiness Zones: 
9a, 9b, 10a, 10b, 11a, 11b
Water Category: 
Soil Fertility Requirement: 
Average Soil
Edging Plant
Mass Planting
Uses Notes: 

Use in hanging baskets, window boxes, combination planters and landscaping

Maintenance Notes: 

Self-cleaning no deadheading necessary, this is not necessarily true of all Petunias.

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.

Supertunia® Really Red Petunia hybrid 'Sunremi' USPP 16,803, Can 2,838
  • I grew Really Red Supertunia this year for the first time and had high expectations. We have had an exceptional amount of rain this year in Southern Mississippi at close to 80 inches through mid August. I think this has led to a little bit of stem and bloom rot on this variety. I am growing this in a 12 inch hanging basket which I faithfully use my fingers to do a little cultivation of the soil to loosen up around the roots due to all the moisture we have received. This seems to not help as much with the other varieties. Best Varieties I have had luck with are Vista Bubblegum (Exceptional), Raspberry Blast (Very Good), Black Cherry (Very Good) and White (Very Good). Have not tried them all yet. Would like to try Vista Fuchsia next year. Supertunias certainly like liquid food at least every two weeks.

    Satisfactory Average performance, met expectations but not outstanding.
    Jeff Schneider
    Ocean Springs
    United States
    1 year ago
  • I have been waiting for a red petunia to put in my window boxes. the last 2 years I used The Proven Winners light purple Supertunia. I would put two in a 36-inch window box and they would fill the window box and Cascade all the way to the ground. This year I put in the new really red and it's starting to go over the window box edges but very slowly. One thing I noticed is it does not deadhead very easily. I end up picking some off everyday. We'll see how the rest of this summer goes.

    Marginally Adequate Performed below expectations but may be willing to try again.
    United States
    1 year ago
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