If you want the earliest summer colour and nice sized, bushy petunia plants to place in the garden after the last frosts in May/June, it’s a good idea to sow petunia seeds 12 weeks ahead of your expected last frost. Start inside 10-12 weeks before you plan to move them outside (after the last frost of your area and after hardening off). That’s right about the time you’ll start wondering why your petunias … and needs lots of light in order to germinate. Because they tend to … Our new incredicompost® has recently been verified as the best compost for sowing seeds and raising young plants. It is easy to find a petunia that works well A good potting soil with fertilizing every 2 weeks is recommended for containers. Grandiflora Series: This variety has larger flowers and grows in a mounding form. Hi i have planted hanging petunias seeds in green trays using solution last year ,I have never grown anything from seed before,soon have grown 3″ in height ,when should i transplant in baskets thanks, Hello Copyright © Thompson & Morgan, 2004-2019. How do you start petunias from seed? One of the advantages of growing petunias from seed is that you can get a much wider choice of available petunia types. Need help with seed starting? According to Floridata, seeds should be planted in good garden soil about 12-18 inches apart. One of the challenges of planting petunia seeds is the small size of the seeds. Remove the plastic sheet as soon as the seeds start sprouting. Sowing in seed trays. Tuck petunias in between evergreen shrubs to brighten the area. Soil used needs to drain well; add compost to help fertilize the soil to give the seeds a good start. Next put on it a thin layer of decomposed organic material, such as wood compost, leaf compost or maybe peat moss. May 19, 2020 - How to Grow Petunias from Seed Originally from South America, petunias are a trumpet shaped flower and mostly grown as annuals in the US (although the can be perennials in zones 9-12). Remember to water them. The salmon-colored variety “Salmon Wave”, for example, is particularly easy to grow from seed and is even rain-resistant. Somewhere along the line, petunias have gained a wrongful reputation of being difficult to grow from seed. They are ideal for hanging baskets. The selection of varieties here is usually enormous. Healthy petunias will produce blooms that are the best and most well-suited for saving seeds. Place the fluorescent light approximately 3-6 inches (7-15 cm) above the top of the tray. It’s wrong to assume that all seeds can be sown the same way. Cover the area with a clear lid or plastic wrap to keep moisture in. Sowing in seed trays. However, most petunia varieties will bloom throughout the summer, except in extreme heat. Wave petunias can be grown from seed, using a seeding tray and soilless mixture. Peat-based composts are still the best option for sowing petunia seeds. When the plants have three leaves, you can plant them outside. Grow Petunias from Seed: Start inside 10-12 weeks before you plan to move them outside (after the last frost of your area and after hardening off). Multiflora is a great choice for flower beds and containers and give them a try for your cutting garden. The Shock Wave series has smaller flowers but they produce longer and earlier than other Wave varieties. Fluorescent lights are suitable for a light source, both for germination and for growing on. Growing Petunias from Seeds. Just remember that starting from seed takes longer so begin at least ten to 12 weeks before your outside planting date. Although they are not as hardy as their relatives the nicotianas, they are tougher than many people think. Remove the cover at that point and move to a cooler place (60-65 degrees F soil temperature). The soilless mixture is preferred because it does not harden when wet (which makes the seeds fight for a place to grow). Growing petunias from seed Petunia from seed: sowing. Take care not to over water them and make sure that you acclimatize them to outdoor conditions over a few days before you move them outside permanently. Petunias are one of the most popular garden flowers for both borders and containers. It is tolerant of both heat and drought. If you fancy growing your petunias from seed, the following tips should help:- 1) Sow your seeds from February to late April, using a peat-based seed compost which needs to be moist but not wet. Kris Collins works as Thompson & Morgan’s communications officer, making sure customers new and old are kept up to date on the latest plant developments and company news via a wide range of media sources. One for Petunias, next one for … Well done for growing your own Petunias! One of the economical ways to fill your garden with Wave Petunias is to grow your own plants from seed. Petunia seeds are tiny and fine but they need light to germinate; don’t cover the seed with soil but rather sprinkle the seeds on top of the soil and pat lightly, for good contact. Every seed ‘wants’ to grow, some just need a few more specific requirements. Save my name, email, and website in this browser for the next time I comment. They are prolific bloomers, although some forms require deadheading to keep them going. If you want to collect the seeds of petunias, wait until they get matured on the bush. Growing Petunia Seeds. Propagation by sowing is very successful and uncomplicated. To grow the seeds all is needed is to sprinkle the seed to the soil surface. … Every seed ‘wants’ to grow, some just need a few more specific requirements. The T&M blog has a wealth of knowledgeable contributors. Settle it well all over the pot. Look for these next season as we try them in our trial garden. Sow petunia seeds as soon as favorable climatic conditions arrive, either directly in flower garden or indoors in seed trays. Petunias allowed to go to seed will slow or stop blooming. About 10 weeks before your last frost date: Fill eggshells with potting soil. Find out more about them on our. Sow your Wave petunia seed into a moistened germination media or potting soil. Although some species … GROW PETUNIA FROM SEED Step 2. Novice growers quite often ask how to grow petunia from seeds. If starting the seeds early, it is ideal to germinate the seeds indoors in a warm place using bottom heat more than 25C no more than 27C. Unfortunately this also delays the appearance of the first flowers. The ideal temperature range to maintain … Sue, i collected a lot of petunia seeds from variagated plants [they were £5 a plant last year.Not knowing if they would germinate,i tried some in a propogator and although they germinated they were very spindly,and have died off where did i go wrong, Hi Brian, A petunia plant is an annual flower that is difficult to grow from seed due to its small seed size. The annual or bedding petunias can be grown from seed sown indoors with warmth in spring in cell trays, seed trays or small pots at a temperature of 18-24°C (65-75°F). It will grow up supports, even though not a true vine. We wrote a blog post on it. The first week of June is a safe bet for … It’s wrong to assume that all seeds can be sown the same way. How I started my petunia seeds using the overseeding method which I also use for herbs, lettuce and other tiny seeds. Regular garden soil will compress the seeds and prevent root growth. Proper light, water, and fertilization when caring for petunias will ensure a long season of beautiful blooms. Comments will be approved before showing up. Germinated petunia seeds will present sprouts seven to 10 days after planting. The temperature for germination should be between 18-24C (64-75F)  at seed level and this can usually be provided in a heated propagator, if this is not available, seal sowing trays in a clear polythene bag in a warm room of the house. How To Grow Petunia From Seeds (With Full Updates) - YouTube How to Grow Petunias from Seed Seed Germination. It is one of the oldest types of Petunia. Petunia seeds germinate within 10 days after sowing, while some may take about 3 weeks. When petunias are grown from seed, the seedlings’ natural tendency is to want to grow, bloom, set more seeds, and then die because their life cycle is complete. Petunias seeds come in pelleted and non-pelleted varieties. has recently been verified as the best compost for sowing seeds and raising young plants. by Kris Collins | Mar 14, 2016 | Expert Update, flowers, Gardening Posts, News in the Gardening World, Petunia Parade | 4 comments. Add soil to the growing containers. Why we love Petunias: So MANY options! The original Wave variety is good for hanging baskets, beds, and planters. Sow petunia seeds indoors in early spring in a flat filled with well-drained potting soil. So MANY options! Press seeds lightly into the soil, and moisten with a mister. Like most annuals, petunias grow readily from seed, and seeds are certainly the cheapest way to get an abundance of petunias. Flatten the surface of the soil and press lightly then water. Here is how you grow petunias from seed: 1. He trained in London’s Royal Parks and has spent more than a decade writing for UK gardening publications before joining the team at Thompson & Morgan. 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