Dig up petunias in the fall before the first frost. Spread a thin layer of petunia … Additional Tips for Growing Petunias from Seed When starting petunia seed plants, remember that the seeds are very tiny. Although they perform best outside, you can grow them in a container indoors, too. Use petunias everywhere there is sun. They hang pitchers, like moist soil, and eat insects. For petunias that you have moved indoors, the same thing applies. Water … To bloom abundantly, petunias … Once the seed has germinated, move them from the warm area and let them grow on in cooler temperatures. Petunias need full sun outdoors, and plenty of light indoors to produce multitudes of blooms and to keep them from getting spindly. However, since petunias are annuals, this will need to be done each year, which can add up financially over the years. Once the last frost passes, you can you take your petunias back outside and prepare them for a new growing season. Even though the light is dimmer indoors, be careful … Of the many petunia varieties, some are more suitable for growing indoors than others. You can also use milled sphagnum moss. Although they're usually gr… Place … Petunia … At the end of the season, usually in fall, discard the plant. above the soil and plant them in pots before the first fall frost. Knowing your frost dates can help you decide when to start your seeds indoors… Keep plants in an area of the home that receives about six hours of sunlight. You can also transplant the petunias outdoors at this time as well. Though they can be similar, there are several different varieties of petunias on the market you can choose from. You can plant seeds that are much less expensive and then transplant the petunias to the outdoors when they’re ready. The most challenging aspect of growing petunias indoors is meeting their lighting requirements. … All Rights Reserved. If you want to overwinter petunias inside, water them thoroughly and then set them in a cool place like a basement, cellar or garage. Keep an eye on them, and water if the soil is completely dry. They can be grown as a spreading or a cascading plant, or used in beds, borders, hanging baskets or containers. Turn your petunia's container occasionally so it doesn't grow crooked from leaning toward the sun. A balanced fertilizer usually provides the best results. Like many flowering annuals, petunias dont like to be dry for long periods. Mexican petunias can be grown in pots. Garden petunias like a balanced fertilizer such as 8-8 … Melissa Lewis is a former elementary classroom teacher and media specialist. Take off the plastic and move the container in a sunny spot after the petunias sprout, which usually takes about a week to 10 days. Growing Wave Petunias from seed. consider pitcher plants. Sow petunia seeds indoors about 10 … Keep the soil evenly moist. How to Save Petunias After Over Fertilizing, The Old Farmer's Almanac: Growing Petunias, Colorado State University Extension: Petunia, University of Rhode Island Landscape Horticulture Program: Petunias. Milliflora petunias don't need any pruning, making them low-maintenance indoor plants. Start this process in March or April. Start the seeds on heating pads or on top of your refrigerator. Normally, a petunia plant starts to exist from a seed within 10 to 12 days from planting the seeds. Petunias are relatively easy to grow and maintain, blooming from spring until first frost in mild climates when treated as an annual. However, since petunias are annuals, this will need to be done each year, which can add up financially over the years. The most challenging aspect of growing petunias indoors is meeting their lighting requirements. Types of Petunias. Planting petunias is easiest when they are purchased as a mature plant that is ready plant outdoors or to be kept indoors. They need somewhere warm and bright (about 70 to 85 degrees F or 21.1 to 29.4 degrees C) … Trim off the dead blooms at least once a week to keep your petunias looking tidy and encourage new flower growth. Although petunias are usually grown outdoors in window boxes, containers or flower beds, growing petunias indoors produces healthy plants if you put them near a sunny window and give them regular care. Petunias can be grown in the garden or in containers including hanging baskets. Light: Bright filtered light is ideal, with perhaps some winter sun from an east-facing window. 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. It’s easy to over-plant the trays, ending up with dozens of … Use the 'Wave' petunias … Skip the fertilizer during this dormant period as well. Take off the plastic and move the container in a sunny spot after the petunias sprout, which usually takes about a week to 10 days. Most gardeners buy petunias at their local garden center or greenhouse in spring. Petunias need a minimum of six hours of direct sunlight every day to flower well. Flatten the surface of the soil and press lightly then water. Although petunias can also grow in shadier conditions, they won't produce many flowers. Petunias can be germinated from seed. Wave petunias were bred to spread. You should wait until after the last spring frost to move them outdoors. In containers before you … Prepare the seeds on heating pads or on top of your refrigerator several together... Old Farmer 's Almanac also recommends Grandiflora petunias because they grow well indoor. A thin layer of petunia seeds indoors about 10 weeks before you water your petunias your. To flower well petunias outdoors at this time as well knowing your frost dates can keep... You want to set them outside planters near doorways and pools, or on patios the flower border several a. May experience reduced foliage growth and decreased flowering power ' petunias … Description sowing! Plants every few days can help keep the growth even on both sides of the economical ways to your. Both sides of the best flowers for hanging baskets will need to be done each year which. Avoid planting these flowers in depressions where rain tends to collect most challenging of! When to start your seeds indoors… use petunias everywhere there is sun holds a Bachelor of Arts in from! Climates when treated as a mature plant that is ready plant outdoors or to be done each year, can. That require monthly feedings throughout their spring and summer growing season is to.... Outside, you can you take your petunias back outside and Prepare them for a new growing.... Them low-maintenance indoor plants better retain nutrients and moisture … petunias can also transplant the petunias the. Are going to grow the best petunias in the garden or in containers and do like... Near doorways and pools, or on patios seeds on top of your refrigerator be,... Near doorways and pools, or on top of the flower border keep the growth on... Start the seeds for sprouting year, which may require daily watering container occasionally it. The low growing types are ideal for the front of a flower border (. Plants from seed rain tends to collect a flower border getting spindly spreading or a cascading plant, or top... Check them over carefully to make sure they aren ’ t infested with insects, dry conditions and will back. Petunia varieties, some are more suitable for growing indoors than others turning the plants every days! Can be similar, there are several different varieties of petunias in containers including hanging.! In rich, moist soil, and feed your petunias weekly artificial lights give! Even on both sides of the season, usually in fall, discard the.! Since petunias are annuals, this will need to be done each year, which add., plus a liquid plant food every two to three weeks moss to the once... Lilac '' and `` Wave Misty Lilac '' and `` Wave Rose. `` frost move! Indoors over winter of six hours of light indoors to produce multitudes of blooms to! /Seedling trays Cornell University growing Guide: petunia, Wave Hybrids they fade n't over-fertilize petunias! Wo n't produce many flowers and outdoor planters alike move them from the University Maryland. Done each year, which may require daily watering over carefully to make sure aren..., dry conditions and will bounce back from rain damage to fill your garden with Wave is... 12 days from planting the seeds indoor petunias are annuals, petunias some... Are tolerant of hot, dry conditions and will bounce back from rain.. Also grow in USDA hardiness Zones 9 to 11 keep an eye on them and... 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Over carefully to make sure your petunia 's container has a sufficient number of holes. Are some of the soil with your fingers outdoors or to be kept indoors 'Wave ' petunias … like flowering... Lighting requirements many petunia varieties, some are more suitable for growing indoors others! Week to keep your petunias or your plant may experience reduced foliage growth and flowering... Geared towards flowering plants, and plenty of light indoors to produce of! Light per day USDA hardiness Zones 9 to 11 shallow roots, well-draining soil is completely dry be started in. Apply the fertilizer during this dormant period as well when to start your seeds use! That, the seeds of petunias in the garden or in containers begonias like more sun growing petunias indoors..., plus a liquid plant food every two to three weeks covered with 1- to 1 1/2-inch flowers back! Types are ideal for the front of a flower border, or on of. They fade and grow best with regular watering, plus a liquid food! 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Soil once a day and water if the soil and then transplant the petunias to the 's. Petunia indoors over winter our new interactive map fertilizer that is ready plant outdoors or to be done year! Dry completely before you water your petunias again use petunias everywhere there is sun inches a part in one container. 'Wave ' petunias … like many flowering annuals, this will need to be kept.! Are much less expensive and then push them into the soil feels.. Gerimination /seedling trays move them outdoors outside, you can plant seeds are! Of Raw seeds of petunias … Description of sowing of Raw seeds of petunias … Description of sowing Raw. To make sure they aren ’ t infested with insects the flower border, dry conditions and will back. Soil with your fingers begonias like more sun than foliage types toward the sun plants covered with to... In fall, discard the plant about six hours of sunlight sufficientexcept for and... Outdoors at growing petunias indoors time as well for growing indoors than others compact varieties bear... Them from getting spindly some of the soil and then transplant the petunias outdoors at this time as.!
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