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supertunia® bordeaux™ in UPRIGHT CONTAINERS

Supertunia® Bordeaux™ is often grown in upright containers because of its full, mounded to trailing shape. Grow it individually in a 12” container, or pair it with other vigorous companions in 18” or larger containers. Since this plant trails up to 30” long, choose a taller upright container or lift it off the ground onto a pedestal or plant stand. Good companions for Bordeaux in upright containers include Angelface® Angelonia, Sweet Caroline sweet potato vines, Superbells® Calibrachoa and Superbena® Verbena.

Click the images above to learn more about each recipe.

  • You’ll need a total of three 4-inch containers to fill one 16” container. You could plant a single container of all Supertunia Bordeaux petunias or plant a combination container using one or two vigorous companions.

  • Space the plants equally in the container so it fills out on all sides.

  • Use a good quality potting soil in your container. Better potting soils are light in texture and weight, and water drains easily through them.

  • Mix a bit of slow release plant food into the potting soil before you add the plants. Follow the package instructions to know how much to use. This will ensure a small amount of food is available to the plants’ roots over the season.

  • Water your newly planted container immediately to help the soil settle in around the plants’ roots.

Sunlight, water and plant food are the three main things your container planting will need to thrive all season long. If you provide all three consistently, both you and your plants will be very happy.

  • Supertunia® Bordeaux™ grows best in full sun, but will still bloom if it receives light shade, especially in warm climates.

  • If you are feeding and watering your plants well but they aren’t full of blooms, move the container to a sunnier spot. If that is not the problem, you may have the dreaded petunia budworm. Read more about that here.

  • Plants growing in heavier upright containers and in the ground tend to dry out more slowly than plants in hanging baskets. That means they may not need to be watered quite as often as your hanging baskets.

  • Never let your container dry out to the point where the plants wilt. That may mean it needs to be watered anywhere from every other day to more than once per day, especially as the summer’s heat sets in, depending on your growing conditions.

  • To figure out if it is time to water, stick your finger down in the soil up to your first knuckle. If the soil sticks to your finger, it is moist enough to make it through the day without watering. If not, it’s time to water.   

  • If you don’t have much time to water or if you tend to travel in the summertime, consider investing in a WaterWise® self-watering kit. It saves time and water, is simple to use, and waters up to ten containers at once from a single faucet.

  • Every third time you water your container, include a bit of water soluble plant food in the water. Follow the package instructions to know how much to use.

  • What does every third time mean? If you water every Monday, Wednesday and Friday, then you’ll feed your plants every Friday. If you water your plants more than once a day, every third time you get out the watering can, add some water soluble plant food to the water. During the heat of summer when you are watering more often, your plants are growing faster and need more food to keep up. Feeding flowers is like feeding kids—not so much when they are toddlers but they’ll eat you out of house and home when they are teenagers.

  • Any brand of plant food meant for flowers will work for your containers. But we recommend Proven Winners water soluble and continuous release plant foods because they are specially formulated with micronutrients to help our varieties grow bigger, stronger, and bear more flowers.

  • One of the biggest advantages of Supertunia® Bordeaux™ is that, unlike many other petunias, it will naturally bloom all season without the need to remove the spent flowers. A more technical term you may have seen for this is “no deadheading required”.

  • By midsummer, your container should be nice and full, and the flowers should be starting to trail below the bottom of the pot. To extend the life of your container into fall, this is the time to trim the plants back. Giving them a “haircut”, taking care not to remove more than 20% of the plant, will make them bounce back with renewed vigor and you’ll have a fuller container as a result.   

  • It is perfectly OK to trim your plants back once per month between midsummer and fall. You know how good it feels to get a haircut? Plants love that feeling too, and respond by growing new branches filled with flowers.