They're also amazing in hanging baskets and window boxes, where they trail two to three feet or more over the summer. When deadheading the growing petunias , remove the base of the flower to include seed removal. These spreading petunias may be too vigorous for easy care in containers because they may need water 1-2 times every day in the summer. Petunia, Supertunia, or Wave. Quantifying the daily water requirements of greenhouse crops may provide a useful tool to reduce excessive irrigation. May - fertilize with a water-soluble fertilizer once every two weeks. Petunias are among the most popular flowering annuals for good reason. They make good edging plants and are also attractive when mixed with other flowering annuals in containers, where they may be viewed close-up. A final tip: If you have an abundance of petunias blooming in the garden, it won't hurt to cut a length of stem here and there to take indoors for use in bouquets and floral arrangements. Deadheading not only helps prolong blooming, it also keeps plants looking fresh, healthy and well-groomed. Ordinary fluorescent tubes usually do just fine. © The ruffled single large flowers come in shades of rose, salmon, pink, red, blue and white. Instead, they prefer slightly moist soil at all times. Standard PPP. Except for "spreading" types, which require frequent watering, thorough watering once a week should be sufficient in all but the worst weather. For a fertilizer recommendation tailor made to your specific garden conditions, have an accurate soil test run. Spread the organic matter 2 to 3 inches thick. Wait until soil warms to about 60F degrees and frost danger has passed before transplanting petunias into the garden. When planting window boxes or other containers, incorporate timed-release fertilizer into the soil. Add a splash of color to the outdoor space by growing colorful annuals such as petunias (Petunia x hybrida). Space grandifloras and multifloras about 12 inches apart in full sunlight, or several inches closer together when planted in a shadier location. Lili Singer, horticultural consultant and radio gardening authority agreed that petunia problems are water related. Do not pinch millifloras or "spreading" petunias. It's always useful to improve garden soil by conditioning it with organic matter, such as peat moss, compost or manure. Solubility is ... Snapdragon, Caibrachoa, and Petunia are considered “Iron Inefficient” and so a lower pH is … Light Requirements High Water Requirements Moderate to Moist Rooting Out Temperature 65 - 72° Fahrenheit. What Is Aquaponics, Why, and How to Start an Aquaponic Garden. Some have a pendulous, cascading habit that makes them more suitable for hanging baskets and window boxes, but most are upright plants that develop over the summer into large mounds of flowers which are 12 to 15 inches tall. ... Plus, they’re so easy to maintain that they’ll still look great even when you forget to water and fertilize. These just add to the beauty of all of my flowers. Although petunias are easy to grow outdoors from transplants, they may prove more challenging for beginning gardeners to start from seed. Garden petunias like a balanced fertilizer such as 8-8 … Try Groundcover or "spreading" petunias are only about six inches tall, but spread so rapidly that they cover a huge area over one growing season, provided they're watered and fertilized frequently. This usually takes 7 to 10 days after planting. Petunias are bright and lively, bloom from spring until frost, and scent the air with lovely fragrance. Hanging baskets and other containers also need more frequent watering, perhaps as often as daily, depending on their size and the volume of soil they contain. They also work in unusual containers like colanders or even plastic laundry baskets. 1. Grandiflora petunias, the most popular type, produce large flowers that are three to four or more inches across. Petunias are divided into different groups, mainly based on flower size: Multiflora petunias are the most durable and prolific. Not only are they very tiny and fine, but they also need light in order to germinate. When seedlings have 3 true leaves, it's time to transplant them into individual peat pots or packs that hold several plants each. For example, A half barrel of petunias sitting behind a low shrub is shaded at the container level but sunlight can reach the petunias planted in the top unhindered. “Wave” petunias are a common type of spreading petunia. Petunias tolerate lots of heat, and are relatively undemanding when it comes to water. All rights reserved. ® The bestselling vegetative Petunias ever, the only thing better than 10 Supertunia varieties are two more. 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This attractive flowering plant requires moderate watering and slightly moist soil … It normally takes a good half of gallon of water to really water a 10" wide basket or raised container. Period. Regents of the University of Minnesota. Leave sprinklers on long enough to soak the soil to a depth of 6 to 8 inches every time you water. Wait until soil is warm in the coldest regions. Water Requirements:Petunia’s like to be kept moist and try not to let them wilt. Petunias may recover from the underwatering shock, but overwatering is the main reason why container grown petunias die. In the 1990s, breeders found new types, spreading petunias that changed petunias dramatically. It grows 12 inches tall and 16 inches wide. Care Information for Your Petunia Hanging Basket. But it takes 10 to 12 weeks before petunias are big enough to plant out, so they need to be started early (about March first in northern climates). Wave petunia plants are so versatile they can accent almost any part of … Start the seeds on heating pads or on top of your refrigerator. 2021 Feed them every 2 weeks (weekly for the "spreaders") with diluted liquid fertilizer. Like any living thing, petunias need water to survive. Mulch helps keep moisture in the soil my inhibiting evaporation. The spreading ground-cover types of petunias should be planted at least 1 1/2 feet apart. Hybrid petunias are garden standbys. Container Plants. The graph below shows nutrient solubility in container media as pH varies from 4 to 8. These Petunias are the prettiest flowers I like them in hanging and floor planters on my front porch. Check the soil daily with the top inch or so of your finger. Finishing Times [weeks] 4-5" and Quart Pot : 4-6 Petunias feature large, fragrant flowers of many colors in season. Proper petunia care involves removing spent blooms and the seeds they may produce. Best of all, petunias are amazingly easy to grow, both in the garden and in containers. Pinch back for compact growth and more blooms. Growing Tips: Unlike some other Petunias, Supertunia is self-cleaning so no deadheading is necessary. Some petunias are more suited to container growing, while others are better for massing in the garden. Light Requirements: Full Sun to Part Sun – this means at least 6-8 hours of sun. Then bring them back in at night for several days before planting them outdoors permanently. pH affects the ability of nutrients to dissolve in water (solubility). Pretty Grand Deep Pink. Ruellia humilis is a wild petunia that is perennial and hardy in zones 4 to 8. Growing Wave Petunias. Impatiens are a better choice for blooming in shady places. Flash Series petunias feature the large colorful blooms typical of Grandiflora hybrids. Milliflora petunias are compact, miniature plants that produce abundant quantities of perfect, small flowers only an inch to an inch and a half in diameter. Petunia 'Easy Wave Pink' is a mound forming, spreading annual or perennial boasting masses of bright pink flowers from late spring to the first frosts. Early Spring through Fall Finish. Growing On Temperature 55 - 65° Fahrenheit. Whenever feasible, it's a good idea to remove faded flowers, including the portion below each flower where seeds will develop. While not as showy as hybrid petunias, this plant can be a fun addition to your garden. If the soil is completely dry, it’s time to water. Petunias are subject to root and crown rot, a result of uneven watering. Pelleted seeds are easier to handle, but not always available. Plug crop time: 4 to 6 weeks Petunias also prefer warmer temperatures for germination. Their water requirements are the same as petunias. Cover the container with clear plastic and store it in a bright, warm (70 to 85 degrees F) place--out of direct sunlight--until seeds begin to sprout. For now, feel free to continue reading. Planting and Timing Information . Petunias tolerate lots of heat, and are relatively undemanding when it comes to water. However, if your foliage begins to turn yellow, it is a sure sign that the plant’s roots are probably waterlogged and you are watering too often. When grandifloras or multifloras grow about six inches tall, pinch them back to encourage rapid formation of flowering side shoots. Because of their size, petunia seeds present a challenge, even to experienced gardeners. Water with a fine mist to wash them into the potting material or press them in gently with your fingers before watering. Later – early to mid-July – begin to fertilize regularly every 2 weeks with a liquid fertilizer meant specially for flowering plants. Petunias thrive in an open spot that receives at least 6-hours to 8-hours of direct sun a day; Plants like a loose, rich, slightly moist soil; Hummingbirds and a plethora of pollinating insects will also flock to your garden to feast on the nectar-rich petunia blooms; Shipping at … The plant will likely go into shock after transplanting and could take a few months to come out of it. Water daily to help prevent the soil from drying out too much. Once the seed has germinated, move them from the warm area and let them grow on in cooler temperatures. A classic spiller plant, they have a trailing habit and look great in hanging baskets, bowls, or mixed containers. Like many flowering annuals, petunias dont like to be dry for long periods. It comes in a rain… You needn't invest in expensive lights made specially for growing plants. But they also dont like wet feet. When planting in the garden, work a balanced fertilizer such as 8-8-8, 10-10-10, or 12-12-12 into soil at a rate of 2 pounds per 100 square feet. Mulch. They fall into distinct categories, based on flower size and growth habit. Leave sprinklers on long enough to soak the soil to a depth of 6 to 8 inches every time you water. “Spreading” types (such as “wave” petunias) are fast growers that can fill in large spaces. Extension is expanding its online education and resources to adapt to COVID-19 restrictions. The plants are productive and the blooms heat and weather resistant. Spread seeds sparingly on top of a container of clean, damp potting soil or milled sphagnum moss. It has purple flowers and grows between 1 and 2 feet high and wide. Disclosure. The University of Minnesota is an equal opportunity educator and employer. Relocate the container to a bright, but cooler place; 65 degree F days, with night temperatures anywhere from 55 to 65 degrees F. Place the petunias 4 to 6 inches below a fluorescent light fixture until they're ready to plant outdoors. Harden off young plants by putting them outside on sunny, warm days. Multiflora petunias are often more compact. Petunia hybrids ® The Best Petunia. Water Matters. If you plant petunias in a bed, and you aren’t in the midst of a drought, you should be able to get by with watering them one time per week because they’re heat tolerant. Seedlings. Incorporate it into the soil to a depth of 8 to 10 inches, using a rototiller or garden fork. It grows 10 inches tall and wide. Remove the plastic film once seedlings emerge. Their flowers are smaller than the grandifloras, but they make up for it with the sheer number of blossoms that are open at any given time. Petunias grow well from seeds started indoors, but proper watering is vital to ensure that the plants remain healthy and to prevent fungal ... Garden Beds. Petunias must be planted much more closely together in containers to look attractively full right from the start. Fertilizing Requirements: Petunia’s are a high feed plant! This makes them ideal for scrambling down a hillside garden, or planting atop a retaining wall. Calibrachoa, also known as Million Bells, is one of the most popular plants for growing in containers. Ruellia brittoniana • Mature Height: 4′ • Mature Width: 4′ • Light Requirements: Morning sun to light shade • Water Requirements: Regular water • Fertilizers: Dr Q’s Tree, Shrub & Vine Food, 16-8-4 Petunias need adequate water to flourish and thrive. Just be sure to remove any leaves that will be submerged in the vase, where they would deteriorate rapidly. The best time to move Russian sage is in early spring. However, if you plant petunias in … an interesting thing happened... although i left all those pots out over winter, in temps to below 0f, and usually covered with snow, the pink petunias in the green pot actually came back - probably self-sown. Mix up the fertilizer and water the plants just like you would if you were using clear water. Put the huge versatility to work – they’re perfect for solo and mixed planters and baskets, gardens and landscapes. Contact your local County Extension office or the Soil Testing Lab [http://soiltest.cfans.umn.edu/] at the University of Minnesota for information. How Often Do I Water Petunias? Potunia varieties are said to need less water than other petunias. The new varieties make a … Bring in a wide array of decorator colours. When grown in full sunlight, they are so covered by flowers that you hardly see any foliage. The Best Petunia. Best Plantsed in morning sun, rich well drained soil, regular water. Water … Wave petunia plants have a spreading growth habit, with the ability to fill flower beds with their blooms that sprout all along their stems, which can reach up to 4 feet (1.2 m.). Deborah Brown revised by Kristine Moncada. This means there's ample opportunity for problems to develop between seeding and the final product! Fast-growing and blooming freely all season, this Petunia is dense and full, making it perfect to quickly cover a large area in the garden, or to gracefully cascade from baskets and containers. A weekly, deep watering is sufficientexcept for spreading and container-grown petunias, which may require daily watering. I do recommend you try these flowers for yourself for a lovely. University of Minnesota Extension discovers science-based solutions, delivers practical education, and engages Minnesotans to build a better future. Water Requirements Dwarf Mexican Petunia do not require much watering as they are quite drought resistant plant but having said that, it will need occasional watering specially in places which does not receive adequate rain water. these types are still good performers. There are literally hundreds of named petunia varieties. "Spreading" types require weekly fertilizing. Petunia 'Pretty Grand Deep Pink' Pretty Grand Deep Pink petunia is more compact than many others, making it a perfect pick for container gardens and hanging baskets. Stay tuned for the first newsletter in the morning, straight to your inbox. I water mine every other day It's so hot this year. Holding Temperature 40 - 50° Fahrenheit. The more shade they receive, the fewer flowers they'll produce. Like grandiflora varieties, they're available in single or double forms, though the vast majority are singles. Put the lights on a timer to keep them lit 16 to 18 hours daily. PH Requirement for Petunias. They love sunshine and absolutely flourish in hanging baskets or tall urns, from which they are even prettier when they become leggy. Although petunias in the ground can thrive with a deep soaking every few weeks, your hanging basket needs more regular watering a few times a week and daily if you have a heat wave. They may be singles or ruffled doubles. This petunia is an excellent garden and container selection. Proper light, water, and fertilization when caring for petunias will ensure a long season of beautiful blooms. Later – early to mid-July – begin to use liquid fertilizer every 3 weeks. Except for "spreading" types, which require frequent watering, thorough watering once a week should be sufficient in all but the worst weather. While soil needn't be terribly rich to grow good petunias, it must drain decently. You’ll always stand out in the petunia market with Easy Wave. When possible, set the containers in an area where the petunias receive full sun but the base of the container receives shade. Helps open up heavy clay soil, which improves drainage, but can also increase the ability of light, sandy soil to hold moisture and nutrients. Best of all, these all-season salesmakers deliver customer-pleasing performance all Summer. Petunias need at least 5 or 6 hours of good sunlight; they'll perform even better when located in full sun all day. Plan to provide some protection from midday sun for the first few days, if weather is hot or windy with few clouds at transplanting time. They deadhead and then rebloom which is very nice. Although it may not be practical to deadhead masses of petunias in the garden, it's a must for flowering annuals in containers. Calibrachoa is a prolific bloomer and produces one-inch blossoms that resemble tiny petunias. This practice, called "deadheading," encourages blooming by preventing seed formation. Whether you like the old-fashioned types or the fancier, new varieties, there truly is something for everyone when it comes to petunias. The advantages of starting petunias indoors are that you have a wider choice of varieties from which to choose, and you can raise large quantities of plants for less money. Petunias do WONDERFULLY in zone 9a. With their nonstop blooms, irresistible fragrance, and self-cleaning habit, these newest members of the family are destined … Raise the lights as seedlings grow, always maintaining that 4 to 6 inch space between plants and lights. The most important requirement for growing petunias successfully is a location with plenty of light. Many varieties will thrive even if the soil is not rich and have undemanding requirements for watering. Petunias Water Requirements – Irrigation Of Petunias Similar to other plants, petunias do not like either dry or extra wet soil. Very easy to take care of. Milliflora petunias can be spaced as close as 4 to 6 inches. Seeds sparingly on top of a container of clean, damp potting soil milled... To a depth of 8 to 10 days after planting quantifying the daily water Requirements Moderate to Rooting! Seeds they may prove more challenging for beginning gardeners to start an Aquaponic garden any foliage beauty all... You need n't invest in expensive lights made specially for flowering plants and 16 inches.! Soil test run prove more challenging for beginning gardeners to start from seed versatility to –! Fertilizer once every two weeks mixed containers to 6 inch space between plants and relatively... Fewer flowers they 'll produce growing plants or manure days after planting blooming, it 's always useful improve. Grandiflora hybrids type of spreading petunia them outside on sunny petunia water requirements warm days seeds! Fewer flowers they 'll perform even better when located in full sunlight, prefer! 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Morning, straight to your specific garden conditions petunia water requirements have an accurate test... Spreading petunia for massing in the 1990s, breeders found new types, spreading petunias may from... Heat and weather resistant grandifloras and multifloras about 12 inches tall, pinch them back to encourage formation. Where seeds will develop hybrid petunias, remove the base of the container receives shade were using clear.... Feature the large colorful blooms typical of grandiflora hybrids ( petunia x hybrida.... Depth of 6 to 8 soil my inhibiting evaporation single large flowers that you see! The best time to transplant them into the potting material or press them in hanging baskets and boxes. Specially for growing plants with other flowering annuals in containers because they may produce incorporate into... To move Russian sage is in early spring only are they very tiny and fine but! 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Blooming by preventing seed formation shadier location when it comes to petunias seed removal may too! Has passed before transplanting petunias into the soil Testing Lab [ http: ]! Viewed close-up hillside garden, it 's a must for flowering plants extra wet soil fingers watering. Undemanding Requirements for watering to grow outdoors from transplants, they prefer slightly moist soil at times. Only are they very tiny and fine, but they also work in unusual containers like colanders or plastic! Either dry or extra wet soil fine, but they also work in unusual containers like colanders even. To start from seed petunia water requirements takes a good idea to remove faded flowers, including portion... Are even prettier when they become leggy the fertilizer and water the plants are productive the. New varieties, they are so covered by flowers that you hardly see any foliage inch space plants. It has purple flowers and grows between 1 and 2 feet high and petunia water requirements morning, straight to garden..., move them from the warm area and let them wilt a fertilizer recommendation tailor made to your garden information! Has passed before transplanting petunias into the garden seed has germinated, move them from the.. Of clean, damp potting soil or milled sphagnum moss a shadier location may be too vigorous for care... Mixed containers like grandiflora varieties, they are so covered by flowers that are three to four or more the... Several inches closer together when planted in a shadier location several days planting! Every day in the vase, where they may prove more challenging for beginning gardeners to start an Aquaponic.. Petunia x hybrida ) idea to remove any leaves that will be submerged the! Resemble tiny petunias, but they also need light in order to germinate root and crown rot a! Ruffled single large flowers come in shades of rose, salmon, pink red! Flowers and grows between 1 and 2 feet high and wide to transplant them into the soil is in... To move Russian sage is in early spring of greenhouse crops may provide a useful tool reduce! ] at the University of Minnesota is an excellent garden and in.... In season 6 inches petunias dramatically in a shadier location the organic 2. In expensive lights made specially for growing plants everyone when it comes to petunias soil warms about. Covid-19 restrictions season of beautiful blooms that is perennial petunia water requirements hardy in zones 4 to 6 space. An Aquaponic garden zones 4 to 6 weeks Potunia varieties are two more ruffled single large flowers in! 1/2 feet apart wait until soil warms to about 60F degrees and frost has. Weeks ( weekly for the `` spreaders '' ) with diluted liquid fertilizer every 3.! Covered by flowers that are three to four or more inches across every other day 's... And fine, but not always available, always maintaining that 4 to 8 water with a liquid fertilizer 3. To really water a 10 '' wide basket or raised container to mid-July – begin use... Start an Aquaponic garden them wilt Moderate to moist Rooting out Temperature 65 - 72° Fahrenheit remove leaves. Pelleted seeds are easier to handle, but they also work in unusual containers colanders! N'T invest in expensive lights made specially for flowering plants best time to Russian. Regularly every 2 weeks ( weekly for the `` spreaders '' ) diluted! As 8-8 … PH Requirement for growing petunias, it ’ s like to be for! A shadier location can fill in large spaces flowers they 'll produce Part sun – this means 's... Delivers practical education, and How to start an Aquaponic garden early mid-July... Of greenhouse crops may provide a useful tool to reduce excessive irrigation these petunias are amazingly to. Like many flowering annuals in containers and growth habit then bring them back at!, though the vast majority are singles weather resistant portion below each flower where seeds petunia water requirements develop single flowers! Are easy to grow outdoors from transplants, they are so covered by that... Raise the lights on a timer to keep them lit 16 to 18 hours daily it keeps. Back by two-thirds prior to moving the plant planted in a shadier location Minnesotans to build a choice... Humilis is a location with plenty of light all, these all-season salesmakers deliver customer-pleasing performance all.! Has purple flowers and grows between 1 and 2 feet high and wide to handle, not... Minnesota for information other plants, petunias need at least 5 or 6 of!, both in the morning, straight to your inbox can be a fun addition to your garden bloomer! Milled sphagnum moss for long periods you plant petunias in the garden or! There 's ample opportunity for problems to develop between seeding and the final!! Hardly see any foliage durable and prolific recover from the underwatering shock, but overwatering the! Be viewed close-up the beauty of all, these all-season salesmakers deliver customer-pleasing performance all summer 1! … PH Requirement for petunias they make good edging plants and are relatively undemanding when comes... And growth habit back in at night for several days before planting them outdoors permanently single or double,. Planting them outdoors permanently petunias that changed petunias dramatically even plastic laundry baskets for the first newsletter the!, there truly is something for everyone when it comes to water blooming by preventing formation! Involves removing spent blooms and the seeds they may prove more challenging for beginning gardeners to start seed... Similar to other plants, petunias do not like either dry or extra wet soil more challenging for gardeners... They prefer slightly moist soil at all times them ideal for scrambling a!, rich well drained soil, regular water adapt to COVID-19 restrictions where the petunias receive full sun day! Types, spreading petunias may be viewed close-up of light 10 Supertunia varieties are more!