Her work has been published around the web, including on home improvement sites like Ron and Lisa. Growth: 24°C. Seeds should be placed 1/8 inch to1/4 inch deep in good potting soil, and kept moist in a warm, sunny spot. How Long Until Marigolds Flower From Seed, Soil Temperature for Outdoor Marigold Seeds. If the pot is small, go with ‘one plant per one pot’ rule. You can grow marigolds both indoors or outdoors in a sunny location. Alternatively, you can let the old flowers remain on the plant until they produce seeds, and then either plant these marigold seeds in a new container or gently press them into the soil of the existing container to allow fresh marigolds to flourish next season. If you don't have a window that receives full sun, marigolds will also respond well to a grow light. Growing Tips. Prep the tray or container for seed with a sterile planting medium (any potting soil will work at this stage) in each of the planting cells. To do this, place a tray under the marigold container and fill this tray with water. Marigolds are one of the most beginner-friendly flowers to grow, so if you are just getting started with gardening marigolds are a great choice (kids love growing them too)! Soil. Decrease to 10 hours per day over the second month. Marigolds can be grown as houseplants, although they do have a bit of an odour that some people don’t appreciate.If you bring them in, the room should be cool, with temperatures between 50-60 degrees F (10-15 degrees C) Give the plants as much sun as possible, as they need lots of light to survive. Marigolds are quite forgiving plants, which is perhaps why they are a popular gift for Mother's Day and are sold as fundraisers by schools and sports teams. © Copyright 2020 Hearst Communications, Inc. When growing marigolds indoors, place them in a south-facing window for maximum sun exposure. grow as annuals in USDA hardiness zones 2 through 7 and as perennials in zones 8 through 10. By creating an account you agree to the Hunker, West Virginia University Extension, Horticulture & Gardening: Marigolds, Master Gardeners, Santa Clara County: Marigolds, GardenGuides.com: How to Grow Marigolds Indoors. Or you can plant the seeds directly in the pot you'd like to display the plant in. According to the Old Farmer's Almanac, the colloquial term "marigold" can refer to several different species of plants, including Tagetes erecta (African, Mexican or American Marigold), Tagetes patula (French marigold), Tagetes tenuifolia (signet marigolds), and the technically unrelated Calendula officinalis (English marigolds or pot marigolds). For French, Signet, and Pot Marigolds, a 6-8 inches pots will suffice. Sow from March to May and they will flower from summer to autumn. Depends upon the variety you are growing. As long as the marigold pot or container has a hole in the bottom and is filled with soil all the way to the bottom (versus having a layer of gravel on the bottom), the dry soil will draw water up from the tray and toward the marigold's roots. Cathy Habas has been a full-time freelance writer since 2014. Marigolds are most commonly thought to be the little orange and yellow flowers everybody grows because everybody can grow them. Marigolds grow well both in flowerbeds and in pots and other containers, but they need space to spread out. Planting You can plant marigold seeds in shallow seed trays to begin with, and move the plants to pots or planters once they've begun to grow. Marigolds can make colorful additions to any flower bed or garden. Marigolds need full sun to produce their stunning blooms. Determine where you will grow your marigolds. Hunker may earn compensation through affiliate links in this story. Are Marigolds Dangerous for Puppies to Eat? Plant the marigold seeds about 1/8 inch deep. Marigolds perform best in full sunlight, although they can handle up to 20% shade. Gardening Know How: Growing Marigold Flowers: How To Grow Marigolds, Light Requirements When Germinating Marigold Seeds. Sow seeds 0.5 cm (¼”) deep, leaving spaces of 15-45 cm (6-18″) between plants. What you need. If you live in Zone 8 or higher, your marigolds may not die off during the winter and will probably return with fuller vigour the … Allowing your marigolds 6-8 weeks of growth before setting them out will give them a jump start, and you’ll enjoy the blooms earlier than if you were to sow them directly in the garden. Be prepared to water your marigold plant often when growing it indoors. Place the planted seeds under a grow light or in a sunny, southern window. She has written for "The Sporting News," the "Boulder Daily Camera" and the "Ogden Standard-Examiner" as well as magazines and online sites. The soil in containers naturally dries out faster than the soil in the ground. Marigold seeds germinate in five … Growing Tips. Another way to avoid diseases that can occur from soggy conditions – like root rot or powdery mildew — is to water your marigolds from the bottom. An easy way to cover the planter or pot is to place the entire container inside a plastic food storage bag. When to Start Indoors If you decide to start your seeds indoors, plan to sow them 6-8 weeks before your average last frost date. In the winter, your marigolds might need to spend some time under a grow light. She graduated from Indiana University Southeast with a Bachelor's degree in English. Jennifer Philion has been a professional writer and editor for more than 13 years, with experience in print and online journalism as well as marketing and public relations. A Simple Five-Step Guide to Grow Marijuana Indoors. If you’re growing in soil, try and keep the pH between 6 and 7. What Are the Characteristics of an African Marigold? 46 Comments. Marigolds have no particular soil requirements. For more information about growing from seed to harvest, check out our website! Marigolds do have a strong odor that some people find objectionable, so keep this in mind if you'll be growing the plants in a small space. Marigolds are popular garden plants because they come in a wide range of color combinations and sizes, and they grow quickly and easily. Start your plant at 12 hours of light per day. Light. Marigolds will continue to produce blooms if you remove the old flowers by "deadheading." Simply pull off the shriveled, dry, brown flowers to stimulate additional blossoms. Because they are cold-sensitive, marigolds (Tagetes spp.) Growing marigolds indoors allows you to enjoy their blooms year-round regardless of the weather conditions outside. You may need to move them throughout the day to ensure they spend at least six hours in direct sunlight. For indoor growing, you should choose a smaller variety such as dwarf French marigolds, which are smaller than 12 inches fully grown. You might want to consider using a grow light. For marigolds, we recommend this soil mix. She enjoys writing content that helps homeowners feel motivated and confident in handling projects around the home. Grow marigolds in a small, medium or large container. Marigolds are annual plants in most zones, meaning they will die in the winter and will not return the next growing season. To get the longest growing season from your marigolds, start the seeds indoors before transplanting them outside. There are a few odorless varieties of marigolds, but seeds can be difficult to find. Aside from chronically damp conditions, too much shade will also cause marigolds to suffer from lackluster blooms and poor growth. They don't need special soil or fertilizer, and they won't immediately die if you allow their soil to dry out. in journalism from the University of Colorado-Boulder. They even fare well as potted plants. Marigolds germinate quickly outdoors when direct sown, and since the plants don't really start growing until the weather warms, the direct-sown plants have time to catch up to the plants started indoors. She holds a B.S. A packet of Calendula seeds (varieties that can be sown from March include ‘Fiesta Gitana’, ‘Daisy Mixed’, ‘Greenheart Orange’ and ‘Lemon Zest’) Growing Marigolds: Tips and Tricks. The best choice for your home depends on how well you remember to water your plants and how large you expect them to get. Marigolds do best with plenty of light. While many people consider marigolds a warm-weather plant, marigolds can be grown indoors year-round. They’ll thrive as long as they are receiving enough light.