This simple routine is all that is needed to keep hanging baskets blooming like you never thought possible. The ones I pinch are usually smaller plants than the others. "Deadheading," or pruning, flowers interrupts the seed production and encourages more flowers to bloom. Mexican petunia is incredibly easy to grow in full to partial sun. If growing the wave petunias in a hanging basket, you can lift it from underneath to get a feel for its need for water. My hanging baskets of petunias stopped blooming. In year-round warm climates, they survive and sometimes bloom throughout the winter. They are prolific bloomers, although some forms require deadheading to keep them going. Seed is planted from late winter to summer and seedlings are available from late winter. I have a hanging basket of petunias with that fiber liner, and I cant keeep it from drying out. After pruning, fertilize and water the plants well to … But some gardeners end up frustrated that their plants become a tangle of long green stems with only some flowers at the end. The Good, the Bad, and the Pretty. Cut off all the stringy, trailing stems that have only a flower or two. It’s possible that you have been doing everything perfectly and the wave petunias are still blooming. Print. i planted purple and red wave petunias in a set of window boxes this spring . They are planted in the spring, bloom throughout the warm months and then die in the fall when temperatures begin to drop. It should feel noticeably heavy if its well-watered, and noticeably light if it needs water. Petunias need full sun for the most optimum show of blossoms. But too much watering can lead to soggy roots, and a weak plant. Overfeeding: Nitrogen promotes leaf and stem growth, so too much nitrogen results in green plants with no blooms. . Advertisement. For petunias that you have moved indoors, the same thing applies. Reply. 6 tips for keeping your wave petunias blooming. Share. They come in lots of varieties and colors, which can please anyone's eye. The ones I pinch are usually smaller plants than the others. They’ll want at least 6 hours of sunlight, doing well well up to a full day of sun. The flowers don't like to be wet -- they tatter easily in the rain -- and constantly wet foliage can lead to fungal diseases that can prevent them from blooming. Neem oil can be effective, but to avoid burning foliage, it should be applied in … Regular pruning will result in healthier looking petunias with a longer blooming time. These are techniques I use in the hot, humid southeastern United States. It’s Not You, It’s Them. Purchasing Petunia Plants. This directs the plant's energy into creating new blooms rather than producing seeds. Move container planted petunias plants with no flowers into a sunny location. ‘Night Sky’ petunias tend to start flowering in the summer, and continue through fall. If you have a hanging basket of wave petunias that aren’t blooming or have stopped blooming, check whether it’s in partial or full shade. When petunias are in their prime, they are a mass of colorful flowers. This can result in them becoming leggy and pretty unsightly in a short period of time. What to do: Plant a variety of plants in your yard for year-round color. How to revive leggy potted petunias that are looking done in. The stems seem to be browning up and losing their leaves close to the base, but the ends of the greenery are still quite lush. Switching the plant to a south-facing porch or wall hook will provide the full sun exposure it needs, ensuring a magnificent display all season long. Too much fertilizer and the plants will become root-bound in their pots. 3. They come in lots of varieties and colors, which can please anyone's eye. If the soil at the surface is at least a little damp it’s likely OK. Sep 11, 2015 - What do you do if you have non blooming petunias? Save. All petunias need full sunlight to bloom properly, and this is especially true of Wave petunias, which have blooms that line their long stems rather than just clustering at the tip. Petunias are typically treated as annuals. Because they like the sun, Wave petunias need a lot of water. If you are providing the plant with the water, sun, and fertilizer it needs, then it might be due to a disease or insect infestation. Petunias are also some of the fastest growing plants you can buy to beautify your garden. Petunias are one of the most popular garden flowers for both borders and containers. Seedlings may bloom six to 10 weeks from planting into a pot, hanging basket or garden bed. Petunias Stopped Blooming? There are several ways to deadhead petunias, including hand pinching and shearing. Spreading or Trailing Petunias: These are low-growing but spread as much as 3 to 4 feet. There are many ways to treat budworm — we have found Thurocide to be effective at killing budworms and bringing back those blooms. Wave petunias can be prone to root rot and other diseases if overwatered, so make sure that you are watering these plants enough, but not too much. Petunias allowed to go to seed will slow or stop blooming. Yes, you can absoultely grow Mexican petunias as an annual in northern regions, even from seed, as long as you have 3 good months of frost-free weather (as zones 4 and 5 do) and a spot in full sun. Al, thanks for all the tips on fertilizing. It comes down to your plant health. I jotted the info down. That helps them to look fuller and keep blooming . Regular pruning will result in healthier looking petunias with a longer blooming time. Wave petunias (Petunia x hybrida "Wave") are prized for their brilliant masses of colorful blooms. See : 3 Simple Organic Fertilizers That Can Power Plants #2 Consistent Watering The Good, the Bad, and the Pretty. Debbie says. You’ll likely notice holes in you wave petunia blooms if your plant is being impacted by budworms. Fertilizing also helps your plant create more blooms. Wave petunias are often deadheaded before they are sold, but they also need to be deadheaded on a continuing basis once in your garden. Learning how to make petunia bloom is fairly simple. Examine the plants thoroughly for pests before you … Mexican Petunia (Ruellia brittoniana) I was so excited when I found this Mexican Petunia for $1.50 each at our Grower’s Outlet. It has been on my short list of plants for the perennial bed- and now I have two of them newly planted (as of this morning) and I am so excited to watch them grow! Finally, trimming back your wave petunias is a great way to promote the growth of more blooms. If Pennsylvania, if noticed that these tend to be a problem in late summer. If your flowers bloomed once but are no longer blooming, try cutting them back by half their length. © Copyright 2020 Hearst Communications, Inc. To keep wave petunias blooming, they do need frequent watering. Watch your flowers throughout the day -- if they are in the shade for more than an hour or two, consider moving them to a location where they'll be in the sun all day long. They (mostly petunias ) were pretty good all summer. they were doing quite well until about three weeks ago, now they have largely stopped flowering. Petunias, though, are actually perennials. — Renee Bohm, Denver, CO A: They ran out of gas or, rather, soil fertility. Flag. I have had to sit it in a pan to try and slow it down. They love warmth and sunlight. Petunias are such lovely annuals, with many daily blooms. 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