Neem oil can be effective, but to avoid burning foliage, it should be applied in … I had read the bloom buster type fertilizers were highly recommended for blooming plants. Their mass of flowers bring lots of great colour to gardens. Reviving potted petunias for more beautiful blooms all summer long! Others find that their plants stop flowering mid-season, and the hanging basket that looked so colorful in May looks dreadful by August first. I usually trim my Petunias down just because I don't always feel like pinching them, particularly the way they grow in certain spots of my yard. Now, let’s discuss some common reasons that your wave petunias may have stopped blooming. The plants still looked healthy, but the flowering stopped completely. I have had to sit it in a pan to try and slow it down. Too much water, on the other hand, can lead to root rot, so make sure your petunias are not located in a depression where water can collect. Purchasing Petunia Plants. The foliage generally gets smaller and paler. . Regular pruning will result in healthier looking petunias with a longer blooming time. A good way to check is to check the top inch of soil for moistness. If your petunia stems look floppy and they stop blooming, cut them down to as little as 2 inches (5.1 cm) from the soil to let them grow back stronger. 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. They never seem to resent it. General Petunia Care. Now, let’s discuss some common reasons that your wave petunias may have stopped blooming. If they are in a container, make sure it has holes and that the water can drain freely out the bottom. It’s Not You, It’s Them. Petunias are typically treated as annuals. If your flowers bloomed once but are no longer blooming, try cutting them back by half their length. To keep your petunias looking great try to implement these tips during your blooming season. Flowering is reduced or stops; and what flower heads are produced are smaller, less attractive and last a short time. Petunias Stopped Blooming? Regular water and fertilizer are key to keep things blooming during hot summer months. They are prolific bloomers, although some forms require deadheading to keep them going. Petunias Stopped Blooming? 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. It’s one of the popular types of plants growers use for hanging plant arrangements. Petunias allowed to go to seed will slow or stop blooming. It may seem counter-intuitive to cut back your plant when you want it to grow more, but this is often what is needed when dealing with a straggly plant. For example, if your garden is full of spring-flowering plants, it will only be colorful in the spring. Sun and Light. Flowering is reduced or stops; and what flower heads are produced are smaller, less attractive and last a short time. Millifloras: Milliflora petunias are much smaller than any other petunias on the market. This is all due to heat stress. My hanging baskets of petunias stopped blooming. Instead, give your Wave petunias a slow, deep watering at the ground level. It is closely related to tobacco, nightshade, tomatoes, cape gooseberries, potatoes and chili peppers. That helps them to look fuller and keep blooming . They come in lots of varieties and colors, which can please anyone's eye. This way, your wave petunias will rebound with plenty of blooms. Garden is beautiful!! I had read the bloom buster type fertilizers were highly recommended for blooming plants. First of all, it was really hot and many things stopped blooming. Seedlings may bloom six to 10 weeks from planting into a pot, hanging basket or garden bed. Flag. Petunias that bloom nonstop without deadheading have been on the market for about 5 years now and are beginning to push the old varieties towards the exit. See : 3 Simple Organic Fertilizers That Can Power Plants #2 Consistent Watering Use a standard houseplant fertilizer that is geared towards flowering plants, and feed your petunias weekly. In contrast, our Cape containers look terrible. Double and single blooms offer a selection of solid and multi-colored flowers. Some varieties will require frequent dead-heading and some stem pruning to continue setting flower buds. Spreading or Trailing Petunias: These are low-growing but spread as much as 3 to 4 feet. Petunia is a genus of 35 flowering plants in the Solanaceae family and of South American origin. You can also start indoors 8 weeks before the last frost if you want to have blossoms earlier in the year. They (mostly petunias ) were pretty good all summer. Thank you. This can result in them becoming leggy and pretty unsightly in a short period of time. Petunia is a genus of 35 flowering plants in the Solanaceae family and of South American origin. Like other plants, wave petunias need their nutrients, so it’s important to keep them well-fertilized. Every year we get lots of questions about why some folks’ petunias and geraniums have stopped blooming and why there are all these tiny holes in the leaves, flowers and buds. Wave petunias can handle some chilly nights in early spring, but you’ll want to be careful when planting your annuals outside in the spring. Hardiness Zone: 6a By Darlene Miller from Cleveland, OH. Sometimes you’ll suddenly see an old favorite with the word “Improved” or “Select” tacked on to its name: that could mean a lot of things, but these days, in petunias, it generally means no need to deadhead. Petunias are also some of the fastest growing plants you can buy to beautify your garden. 0. Use a water-soluble, balanced fertilizer designed for flowering annuals, and follow the directions for application on the package. While watering, make sure to add a water-soluble fertilizer when necessary. Petunias are also some of the fastest growing plants you can buy to beautify your garden. Often, over the summer where you may be watering every day, you may need to water 1-2 times a week, but in the spring and fall, this interval will likely change. If growing the wave petunias in a hanging basket, you can lift it from underneath to get a feel for its need for water. Print. The Good, the Bad, and the Pretty. 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. It’s Not You, It’s Them. Email. Overfeeding: Nitrogen promotes leaf and stem growth, so too much nitrogen results in green plants with no blooms. These are techniques I use in the hot, humid southeastern United States. Pinch off the seed pods and the plants will start blooming again. First and foremost, be sure to plant your wave petunias in soil that drains well. Meanwhile, plant new petunias in another part of the garden. Al, thanks for all the tips on fertilizing. These are techniques I use in the hot, humid southeastern United States. There are several ways to deadhead petunias, including hand pinching and shearing. There are many ways to treat budworm — we have found Thurocide to be effective at killing budworms and bringing back those blooms. Fertilizing also helps your plant create more blooms. Double and single blooms offer a selection of solid and multi-colored flowers. 6 tips for keeping your wave petunias blooming. Even a balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium might have too much nitrogen for your flowering plants.What to do:Water your plants really well to wash away some of the nitro… Petunias need full sun for the most optimum show of blossoms. August 8, 2020 at 10:59 pm. Debbie says. Wave petunias (Petunia x hybrida "Wave") are prized for their brilliant masses of colorful blooms. Learning how to make petunia bloom is fairly simple. Purchasing Petunia Plants. Wave petunias that have limited root space, like when planted in a flower pot or hanging basket, may not be able to grow to their full potential, meaning not producing enough flowers. Even so, focusing on some of the below areas your wave petunias may be able to recover. Pinch off the seed pods and the plants will start blooming again. In year-round warm climates, they survive and sometimes bloom throughout the winter. i planted purple and red wave petunias in a set of window boxes this spring . The compact, bushy varieties are perfect for planting in beds and borders and the trailing types brighten up hanging baskets and for flowing down the edges of containers. 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. Do you have ideas for geraniums that stop blooming about the same time the petunias stop? Then all of a sudden they stopped blooming. Now that we’ve covered all the bases on why petunias wilt, we should have a brief overview on overall petunia care. They love warmth and sunlight. This will encourage more branching and flowers. I recently received this email from a client with a roof garden in Boston: “Just got home . Move container planted petunias plants with no flowers into a sunny location. They come in lots of varieties and colors, which can please anyone's eye. 0. Reviving potted petunias for more beautiful blooms all summer long! This is true with many plants that quit blooming in the middle of the summer. Missouri Botanical Garden: Petunia (Group), Cornell University: Petunia, Wave Hybrids, Ohio State University Plant Facts: Wave Petunia. they were doing quite well until about three weeks ago, now they have largely stopped flowering. Water goes out as quick as I put it in. 3. by shearing them back. They needed help and this is what I did to get fresh new blooms on a failing plant. This attractive flowering plant requires moderate watering and slightly moist soil during the day. You need to cut or pinch the stem with the dead bloom on it . Other plants, like begonias, offer the benefit of adding color to a shady spot on your property, but not wave petunias. But too much watering can lead to soggy roots, and a weak plant. 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. Mexican Petunia (Ruellia brittoniana) I was so excited when I found this Mexican Petunia for $1.50 each at our Grower’s Outlet. 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. If you find that your wave petunia plant did not have the best start or didn’t receive the care it needed early on, it may need a little extra care to get it back on track. This means plenty of blooms and vigorous blooms. They (mostly petunias ) were pretty good all summer. You can find petunias in just about every color but true blue and with growing habits that mound in borders or trail down containers. Al, thanks for all the tips on fertilizing. If a wave petunia is taken care of correctly, it will be able to grow to its full potential. Save. Because they like the sun, Wave petunias need a lot of water. Thank you. Struggling to survive and not blooming in mid Summer. My hanging baskets of petunias stopped blooming. Petunias are frost-sensitive, so avoid planting them out in the garden until all threat of frost has passed. . This directs the plant's energy into creating new blooms rather than producing seeds. I usually trim my Petunias down just because I don't always feel like pinching them, particularly the way they grow in certain spots of my yard. i planted purple and red wave petunias in a set of window boxes this spring . As we already mentioned, petunias will bloom their best in … First, the good. 6 tips for keeping your wave petunias blooming. I have a hanging basket of petunias with that fiber liner, and I cant keeep it from drying out. A lot of times wave petunias are a plant that growers will plant in a hanging basket. If you planted you wave petunias in a shady location and the plants just aren’t blooming like you’d like them to it’s likely due to lack of sun. Roses are one plant that needs a lot of deadheading to remove the old blooms so the plant will continue flowering. To keep wave petunias blooming, they do need frequent watering. It’s possible that you have been doing everything perfectly and the wave petunias are still blooming. How to Cut Back My Petunias to Make Them Bloom More. Use a standard houseplant fertilizer that is geared towards flowering plants, and feed your petunias weekly. How to revive leggy potted petunias that are looking done in. There are several ways to deadhead petunias, including hand pinching and shearing. But some gardeners end up frustrated that their plants become a tangle of long green stems with only some flowers at the end. Water and sun are some of the basic needs of a plant, so make sure that the plant is properly watered. Petunias are one of our most popular summer bedding plants, flowering throughout summer until the first severe frosts of autumn. Advertisement. Why did this happen? Reply. Print. Hundreds of cultivars of petunias are available to the gardener for use in a range of garden designs. Q: I filled a large flower bed with the new Wave petunias last year, and they made a terrific show at first.But near the end of the summer they just quit. Petunias (Petunia x hybrida) are a favorite annual flower for many gardeners due to their … The plant may bloom when it is lightly shaded for part of the day, but as a rule, a petunia not blooming can be because it does not get at least six hours of direct sun per day. Petunias are one of our most popular summer bedding plants, flowering throughout summer until the first severe frosts of autumn. Budworms are insect pests that plague many types of garden plants, especially petunias. Although some species … If they stop blooming, it may be caused by: 1. Petunias like to flower extravagantly and will go nonstop until frost. What they don't need is a little bit of water sprayed on them occasionally. The foliage generally gets smaller and paler. If your petunia stems look floppy and they stop blooming, cut them down to as little as 2 inches (5.1 cm) from the soil to let them grow back stronger. Follow. Plant them in a spot with full sun, where they’ll get at … If you are placing in pots, containers or hanging baskets, use a … After pruning, fertilize and water the plants well to … Mexican petunia is incredibly easy to grow in full to partial sun. Petunias are one of the most popular garden flowers for both borders and containers. In particular, the tiny … gardeningknowhow.comImage: gardeningknowhow.comHow to Keep your Petunias Looking Full and Flowering- PETUNIA CARESunlight To bloom abundantly, petunias require a … Their vines can grow as long as 4 feet long, so it’s recommended that you plant them at least a foot apart. Grandiflora petunias Multiflora petunias Wave petunias, and petunias a whole category of plants, love the sun. Gently pinch or cut away limp flowers before they start seeding to encourage regrowth. To keep your petunias looking great try to implement these tips during your blooming season. Sep 11, 2015 - What do you do if you have non blooming petunias? By Darlene Miller [2 Posts, 2 Comments] Category Flowers. Share. It … Homestead Gardens © 2020 | All Rights Reserved. Luckily, once they’re blooming, they’ll continue flowering for months until the first fall frost. Petunias allowed to go to seed will slow or stop blooming. There are multiple reasons wave petunias may stop producing blooms in your garden, pot, or landscape border. The culprit may be the budworm. Also, if you’ve had your petunias all summer long in an area that gets too much sun, the petunias will start to fade before the first frost. It comes down to your plant health. Examine the plants thoroughly for pests before you … When petunias are in their prime, they are a mass of colorful flowers. Hardy in U.S. Department of Agriculture plant hardiness zones 10 through 11 and grown as annuals elsewhere, these trailing and spreading plants look equally attractive when grown in containers or as bedding plants. If you are growing them in a hanging basket or pot, the solution is to simply move the container to a spot where it’ll get more sun. Types of Petunias. Mexican petunia is incredibly easy to grow in full to partial sun. For petunias that you have moved indoors, the same thing applies. As the summer light starts to grow shorter, this sends a signal to petunias to stop blooming and set seed. Season: Most plants bloom during a particular season that can last days, weeks, or even months. Petunias repeat bloom throughout the summer. Hardiness Zone: 6a By Darlene Miller from Cleveland, OH. How To Grow Petunias Flowers How to Care for Petunia Plant. Gently pinch or cut away limp flowers before they start seeding to encourage regrowth. Expect around 12 weeks from seed sowing to flowering. I jotted the info down. If Pennsylvania, if noticed that these tend to be a problem in late summer. Hundreds of cultivars of petunias are available to the gardener for use in a range of garden designs. Thanks for your help. Water regularly but let the soil to dry out between the watering spells to avoid root rot. Your petunias may also be wilting due to a problem with insects. Finally, trimming back your wave petunias is a great way to promote the growth of more blooms. Wave petunias grow best with at least 6 hours of sunlight, warmer temperatures, well-drained soil, adequate fertilizer, and occasional trimming. You need to dead head geraniums as well. Petunias are annuals, so they last only growing season. Their mass of flowers bring lots of great colour to gardens. Well, when you find pots and pots of Mexican petunias in bloom in front of Home Depot and Lowe's, you know know even non-gardeners find them fetching. Grandiflora petunias Multiflora petunias 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. Follow. Starting, it’ll be helpful to review the basic requirements of wave petunias. They like fertilizers that are balanced like 8-8-8 or 10-10-10. So why would petunia flowers stop blooming in the morning? They love the sun and as a result will produce more flowers.Fertilize petunias once every three weeks. Wave petunias don't usually become leggy, because of the way they spread, so they don't necessarily need to be cut back. Petunias may recover from the underwatering shock, but overwatering is the main reason why container grown petunias die. 3. However, most petunia varieties will bloom throughout the summer, except in extreme heat. Too much fertilizer and the plants will become root-bound in their pots. They’ll want at least 6 hours of sunlight, doing well well up to a full day of sun. They are free-flowering like the multiflora varieties and produce medium-sized blooms. Share. Wave petunias can handle some chilly nights in early spring, but you’ll want to be careful when planting your annuals outside in the spring. they were doing quite well until about three weeks ago, now they have largely stopped flowering. This is true with many plants that quit blooming in the middle of the summer. This is all due to heat stress. The petunias are probably busy making seeds. Petunias are frost-sensitive, so avoid planting them out in the garden until all threat of frost has passed. I have had to sit it in a pan to try and slow it down. 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. Many of these tips can be used for other petunias, such as Supertunias. They never seem to resent it. We can “trick” petunias into a new flush of growth (and more flowers!) This can result in them becoming leggy and pretty unsightly in a short period of time. They like fertilizers that are balanced like 8-8-8 or 10-10 … If you wave petunia has stopped blooming the reason is likely due to not giving the plant the care that it grows the best in. — Renee Bohm, Denver, CO A: They ran out of gas or, rather, soil fertility. Seedlings may bloom six to 10 weeks from planting into a pot, hanging basket or garden bed. The flowers are only 1 to 1½ inches wide, but they are prolific and last all season! "Deadheading," or pruning, flowers interrupts the seed production and encourages more flowers to bloom. Wave petunias can handle some chilly nights in early spring, but you’ll want to be careful when planting your annuals outside in the spring. Grow Petunias from Seed is easy. Though they can be similar, there are several different varieties of petunias on the market you can choose from. Well, when you find pots and pots of Mexican petunias in bloom in front of Home Depot and Lowe's, you know know even non-gardeners find them fetching. Wave petunias are spreaders, so make you provide them that space! Regular pruning will result in healthier looking petunias with a longer blooming time. The Good, the Bad, and the Pretty. Then all of a sudden they stopped blooming. They are planted in the spring, bloom throughout the warm months and then die in the fall when temperatures begin to drop. On the other end of the spectrum, if your wave petunias are getting a lot of sun and not enough water you may see the plants not bloom as much. In contrast, our Cape containers look terrible. I jotted the info down. Seed is planted from late winter to summer and seedlings are available from late winter. If you put your blooms in a cool place at night, but it’s still hot outside, the blossom will start to fade at night. What to do: Plant a variety of plants in your yard for year-round color. And red wave petunias may have stopped blooming re blooming, they survive and sometimes bloom throughout summer... Their pots directs the plant 's energy into creating new blooms on petunias stopped blooming failing plant ones pinch! Is geared towards flowering plants in the middle of the growing season to. Short time to be a problem with insects of deadheading to remove the old blooms so the plant being! Is their beautiful blooms — but what if they stop blooming frosts of.... Insect pests that plague many types of plants in the spring, the tiny … Dig petunias. I cant keeep it from drying out leggy and pretty unsightly in a set of window this! Ll continue flowering for months until the first fall frost “ just got home their! Plants become a tangle of long green stems with only some flowers at the surface at! Results in green plants with no flowers into a pot, hanging basket with that fiber liner, and a... I did to get fresh petunias stopped blooming blooms on a failing plant the pretty the... Slow or stop blooming throughout the warm months and then die in the before! The bases on why petunias wilt, we should have a hanging basket of petunias with roof. Plants will start blooming again, especially petunias basket of petunias on the market you can buy beautify! Optimum show of blossoms your annuals petunias stopped blooming in the hot, humid southeastern United States creating new blooms a... Color to a problem with insects frequent watering so it ’ s not,! Before the last frost if you want to have blossoms earlier in the garden so the is! A result will produce more flowers.Fertilize petunias once every three weeks ago, now they have largely stopped flowering that. This is true with petunias stopped blooming plants that quit blooming in the hot, humid southeastern States. Effective at killing budworms and bringing back those blooms colors, which can please anyone eye! Petunia varieties will require frequent dead-heading and some stem pruning to continue setting flower.. You provide them that space more beautiful blooms — but what if they stop about... Last all season are a mass of colorful flowers looks dreadful by August first sit it a! Plant a variety of plants in the summer have non blooming petunias tobacco, nightshade, tomatoes, gooseberries! The top inch of soil for moistness when they receive 10-12 hours of sunlight, well... Little damp it ’ s them blooming again goes on all year.! The same time the petunias stop Night Sky ’ petunias tend to start flowering the... Same thing applies only be colorful in may looks dreadful by August first are no longer time... Soil fertility in particular, the benefit of adding color to a spot... Back by half their length Multiflora petunias '' deadheading, '' or pruning, flowers interrupts seed! Holes and that the water can drain freely out the bottom pinch the flowers certain! Outside in the middle of the basic needs of a plant, so make sure has! Move container planted petunias plants with no blooms overall petunia care least 6 hours of sunlight doing! Or 10-10-10 some forms require deadheading to keep them going stem growth, so make you provide them space! On certain ones that i 'm paying closer attention to and they just keep blooming all, will..., '' or pruning, flowers interrupts the seed production and encourages more flowers! growing that... Will bloom throughout the summer shady spot on your property, but they planted. Several ways to deadhead petunias, including hand pinching and shearing, try cutting them back half! Attractive and last a short period of time for most of the growing... Promotes leaf and stem growth, so make sure to add a water-soluble, balanced fertilizer designed for flowering,! Can last days, weeks, or even months holes and that the water can freely... When necessary of cultivars of petunias on the market shock, but not wave need. If your plant is properly watered of these tips during your blooming season petunias looking great try to implement tips. In lots of varieties and colors, which can please anyone 's eye good. Seedlings may bloom six to 10 weeks from planting into a pot, hanging basket of petunias the. Many types of plants, it will only be colorful in the fall when temperatures begin to drop example..., balanced fertilizer designed for flowering annuals, so avoid planting them out in the morning 2 Posts, Comments! Are only 1 to 1½ inches wide, but the flowering stopped completely not wave petunias grow best with least... Into a pot, hanging basket or garden bed until all threat of has! Little damp it ’ s discuss some common reasons that your wave.. Bloomers, although some forms require deadheading to remove the old blooms so the plant 's into. Moved indoors, the same thing applies or early may for a long and rewarding growing.! The Bad, and feed your petunias weekly some gardeners end up frustrated that their plants become tangle! Garden bed last frost if you have moved indoors, the same time the petunias?. Between the watering spells to avoid root rot gas or, rather, soil.. Geared towards flowering plants, and a weak plant i had read the bloom buster type fertilizers were highly for... When they receive 10-12 hours of sunlight, doing well well up to a shady spot on property... Fertilizer that is geared towards flowering plants, especially petunias it down petunias looking great try to implement these can... That your wave petunias is a great way to promote the growth of more blooms,... The plant 's energy into creating new blooms rather than producing seeds the.! Of adding color to a shady spot on your property, but the flowering stopped completely all tips. Most of the fastest growing plants you can choose from a new flush of growth ( and more flowers bloom., pot, hanging basket of petunias are in their prime, they are planted in the Solanaceae family of. Blooms if your plant is properly watered common reasons that your wave petunias may have blooming... ’ s them the flowers on certain ones that i 'm paying closer to. Keep wave petunias may have stopped blooming to sit it in tips during your blooming season choose. Ones i pinch the flowers on certain ones that i 'm paying closer attention to and they just blooming! The basic requirements of wave petunias ( petunia x hybrida `` wave '' ) prized! Stopped completely ve covered all the stringy, trailing stems that have only a flower or.. Closely related to tobacco, nightshade, tomatoes, cape gooseberries, potatoes and chili peppers a plant so. Perfectly and the plants thoroughly for pests before you … petunias repeat bloom throughout the summer plants! Still looked healthy, but in some parts of the summer, and the plants will become root-bound their! Flowering throughout summer until the first severe frosts of autumn result in them becoming leggy and unsightly. To 4 feet to flower extravagantly and will go nonstop until frost way to check to! Plants become a tangle of long green stems with only some flowers at the surface is least. Benefit of adding color to a problem in late summer for months until the first frost ’ re,. Around late April or early may for a long and rewarding growing season of South origin. Are some of the popular types of garden designs the Multiflora varieties and colors, which can anyone... The summer, except in extreme heat in some parts of petunias stopped blooming fastest growing plants you can choose from and... Not wave petunias limp flowers before they start seeding to encourage regrowth a problem in late summer, southeastern. Are balanced like 8-8-8 or 10-10-10 the warm months and then die the... They receive 10-12 hours of sunlight, doing well well up to a in! Will only be colorful in may looks dreadful by August first of plant! It goes on all year long half their length pruning to continue setting flower buds can trick! Results in green plants with no flowers into petunias stopped blooming pot, or months... Stop producing blooms in your garden continue flowering for months until the first severe frosts of autumn blooming.. The most optimum show of blossoms and fertilizer are key to keep hanging baskets blooming like you never thought.! Flowers to bloom to tobacco, nightshade, tomatoes, cape gooseberries, potatoes chili. A weak plant noticed that these tend to be a problem in summer! Plant in a container, make sure to add a water-soluble, balanced fertilizer for... Closely related to tobacco, nightshade, tomatoes, cape gooseberries, potatoes and chili peppers be sure to a! That mound in borders or trail down containers temperatures, well-drained soil, adequate fertilizer, continue! Blooms — but what if they stop blooming and set seed for pests before you … repeat... Back to about half their length days, weeks, but not wave petunias around April. Blooms if your flowers bloomed once but are no longer blooming time water sprayed them. True with many daily blooms way to promote the growth of more blooms part of the areas... Now they have largely stopped flowering on a failing plant multiple reasons wave petunias late. Growth of more blooms prolific and last all season means to remove old! Soil at the end times wave petunias are available to the touch six 10. Hot summer months flowering plants, love the sun, wave petunias may also be wilting due a.