1. The easiest way to start zinnias is to plant them directly in their final beds outdoors. I wrote a post on where to get seeds from that you can read too. It takes air and soil of more than 70 F to germinate well, so wait until spring is firmly in place before planting zinnia seeds. How to sow zinnia seeds indoors We use cookies to make wikiHow great. If you want to encourage tall zinnias, stake the largest so they don’t flop over. If all the seedlings look healthy, then cut the smallest ones off at the base. And, as with most plants, avoid spraying the foliage and flowers as much as possible and not at all during the heat of the day. Zinnias like well-fed soil, so some compost worked into the ground early in the season will give the soil an edge before it’s time to get the zinnia seeds or plants in the ground. "The information is to the point, understandable and precise. Limestone is your best option to raise pH levels. % of people told us that this article helped them. Zinnias are sensitive to frost, so do not seed until the last frost has passed. Your best bet is to grow zinnias from seeds sown directly in the garden beds. Start seeds indoors in individual containers, set out purchased plants, or direct-sow into warm soil. Once the soil is warmed enough for zinnias, you can plant the … Find a sunny location. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Spacing: Plant zinnia seeds a few inches apart in rows or clumps. As a full sunflower that likes warm weather, zinnias need the air and soil to be warmed to the 70s F to germinate and begin to thrive. Plant out 2-3 weeks after your spring frost date. Pinching Zinnias For Bushy Plants And More Blooms-Growing Zinnia Flowers. Learn tips for creating your most beautiful (and bountiful) garden ever. She earned a BA in Environmental and Sustainability Studies from Western Michigan University in 2014. The best way to judge if a plant is large enough to plant out in the garden is to look at the number of true leaves. Try to save seeds from zinnia plants that are tucked behind others to avoid having dying zinnias as a focal point. Review your fertilizer's package for precise instructions on use. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/d\/d6\/Plant-Zinnias-Step-1.jpg\/v4-460px-Plant-Zinnias-Step-1.jpg","bigUrl":"\/images\/thumb\/d\/d6\/Plant-Zinnias-Step-1.jpg\/aid8890264-v4-728px-Plant-Zinnias-Step-1.jpg","smallWidth":460,"smallHeight":259,"bigWidth":"728","bigHeight":"410","licensing":"

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\n<\/p><\/div>"}, http://www.almanac.com/gardening/frostdates/MI/Hancock, http://vric.ucdavis.edu/pdf/Soil/ChangingpHinSoil.pdf, https://www.rodalesorganiclife.com/garden/zinnia/slide/1, http://www.denverpost.com/2008/05/23/zinnias-can-take-the-heat-and-drought/, consider supporting our work with a contribution to wikiHow. I am really enjoying growing plants from seeds. Seeds from open-pollinated plants, though, will grow true to the parent plant, so it makes sense to harvest those seeds. Considering the height, color, and shape combinations, there are dozens and dozens of zinnia varieties to choose from. In fact, the most difficult part is in waiting for the flowers to dry out! When planting zinnias, choose an … Thin the seedlings when they are 2–3 inches (5.1–7.6 cm) tall. This article was co-authored by Lauren Kurtz. To encourage fuller plants and longer stems pinch the tops out of plants when they are four to six inches high. She earned a BA in Environmental and Sustainability Studies from Western Michigan University in 2014. Thin the seedlings to spacing of 6 to 18 inches (depending on variety) by snipping at the soil line with scissors. When the seedlings are 3 inches tall, they are thinned such that they are 6 to 18 inches apart. If you want a jump on the growing season for some early spring color, you can get around zinnia’s aversion to transplanting. I may want to winter/spring sow zinnias. Plant the seeds only about ¼â€ – ½â€ deep and you should see seedlings sprout in four to seven days. “Harvesting” zinnias as cut flowers will also encourage full growth, telling the zinnia to keep producing blooms until some can go to seed. Cover lightly but firmly. Seedlings will grow weak and leggy when they don’t get enough light. Zinnias do best in dryer soil and benefit from occasional watering and trimming. Include your email address to get a message when this question is answered. These leaves … Once the soil is warmed enough for zinnias, you can plant the entire pot in the ground for an easy transition. In this video we will compare Zinnias that have been pinched to zinnias that were allowed to grow normally. Yes, you can move them after mid-May. Water thoroughly with a water hose or a watering can. Zinnias are some of the longest-lasting annual plants in the flower garden, so as the seedlings emerge (approximately 10 days later) sprinkle a very light layer of mulch between the plants to help them survive extreme weather during their extended season. Is this true? By using our site, you agree to our. Lauren Kurtz is a Naturalist and Horticultural Specialist. Subscribe for more gardening videos! To lower pH levels, opt for acidic materials such as pine needles and peat moss. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Stop deadheading zinnias at the end of the summer to allow the flowers to develop seeds. Heavy humidity might be your only obstacle to constant zinnias all summer long. The process of saving zinnia seeds to use next year is quite easy. Lauren has worked for Aurora, Colorado managing the Water-Wise Garden at Aurora Municipal Center for the Water Conservation Department. Zinnias are fast growing plants. Zinnia seedlings grow in about 4 to 7 days after seeding. "Zinnias are one of the easiest flowers to grow because seeds require only basic garden preparation to sprout and the plants flower in just a few … Limestone should be added to the top seven inches of your soil. You can grow zinnias in your own backyard after the last frost date. Water and sunlight will keep your zinnias blooming full and frequently. By using The Spruce, you accept our, Zinnias - A Burst of Hot Flower Colors from Zinnias, How to Grow Colorful Zinnia Flower Varieties, 10 Easy Annual Flowers to Start From Seeds, Vegetables, Herbs, and Flowers to Plant in January. Direct seed: After last frost when the soil is warm, sow thinly, 6 seeds per foot, 1/4" deep. This is done to maximize air circulation. Keep in mind that the tallest seedlings aren’t always the healthiest. Zinnias are colorful flowers that bloom in the summer months. Zinnia plants are started from seeds. Here are the steps. It takes weeks to a few months to see flowers, but its really rewarding to grow a plant from seeds. How to Plant Zinnias. Sow Zinnias seeds 1/4 inch deep. Check your local frost dates. Leave the brown flowers on the plants so the seeds can ripen. Lauren Kurtz is a Naturalist and Horticultural Specialist. Tests vary in terms of use. Resistant to pests, happy in most soils, and prolific bloomers, zinnias are very nearly “set it and forget it” plants. When the seedlings are 6 inches tall, remove the two weakest plants from each group of three. Sowing Seed Indoors: Sow indoors 5-7 weeks before outdoor planting date in spring using a seed starting kit; Sow seeds ¼ inch deep in seed starting formula; Keep the soil moist at 70-75 degrees F Also, practice deadheading by removing faded flowers that encourage more blooms. Unfortunately, they also dislike being transplanted. Thin out the seedlings, so you end up with one plant every 12in (30cm) or so. Sow two or three seeds 2in (5cm) apart at 12in (30cm) spacing. But maybe little seedlings are different. Zinnias come in a range of shape types, including varieties that resemble daisies or dahlias, tight blossoms in beehive shapes, small button blooms, and large floppy blossoms. With broad blossoms, bright colors, and next to nothing to worry about ruining your tending efforts, zinnias are some of the easiest and most rewarding flowers to grow. Plant them about 1/4” right in the ground, spaced as much as your chosen variety needs, anywhere from a couple of inches to a couple of feet. Thanks to all authors for creating a page that has been read 16,118 times. Moisture is important in early weeks, but make sure it doesn’t get soggy. Zinnias need room to grow, so thin out seedlings no less than 12 inches apart. The Spruce uses cookies to provide you with a great user experience. Zinnias germinate in 5 to 7 days. Zinnias do best in full sun, so gather your collection of zinnia seeds, choose your space(s), and get ready to start your spring zinnias. Angela England is the author of "Backyard Farming on an Acre (More or Less)," and edits the online publication Blissfully Domestic. Once the seeds germinate keep them weed free and moist. The general rule of thumb is that when a seedling has three to four true leaves, it’s large enough to plant out in the garden (after it has been hardened off). Cut flower off of plant. Once they sprout, thin them carefully to encourage the strongest to thrive. If you want full, bushy zinnia plants, pinch the top of the stems off of young plants. Mix up height and color–have fun playing with the many options zinnias provide without having to cater to pickier plants. The illustration makes more attractive and easy to. Seeds of zinnia flowers should usually be sown directly into the sunny flower bed, as developing roots do not like to be disturbed. Zinnias are not frost tolerant, so make sure you transplant after the spring frost risk. Zinnias will last for around two months, so stagger multiple plantings in the garden to keep zinnia flowers in the garden from spring through fall. Start seeds in potting soil and peat pots about a month before the last frost. Grow Zinnias from Seeds. For heirloom varieties, let one or two go-to seed and be sure to collect them for next year. Don’t let the seedlings get too big, as more leaves will form, which can cause crowding. Frost dates are the dates where frost can be expected overnight or in the ... 2. Too much water, on the other hand, will risk one of the only diseases zinnias are susceptible to mildew. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Do not allow plants to become root bound and do not disturb roots; transplant shock may cause double to revert back to singles. If you choose to grow zinnias from seeds, there are many great seed resources out there. Once a zinnia plant is done, you can remove it and plant something else in its place. Along with being beautiful and easy to grow, zinnias are also heat- and drought-tolerant. Taking Care of Zinnias. Give enough space so that air can flow around the mature flowers, preventing disease.Â. The plants emerge quickly and will flower no later than 60 days after the seeds hit soil. Zinnias will grow in a Space 25-30cm (10-12″) between plants. Plant zinnias in late spring, after the last frost has passed and the soil is warm. How to save zinnia seeds. It's a good idea to wait a few days or a few weeks after the last predicted frost date. I have direct sowed them with moderate success. Start seeds f… How to maintain Zinnias. Turn over the soil in the area you want to plant your zinnias and work in 2 or 3 inches of compost or peat moss to help improve soil fertility and drainage. Keep water to about an inch a week, from all sources. The soil will be very wet and adding sand may not be enough to dry it out. The package should indicate how much fertilizer should be used depending on the size of your garden. Start seeds in potting soil and peat pots about a month before the last frost. As a quick, easy annual, you can tuck zinnias around other plants or make a full zinnia patch. Soil: Zinnias grow best on fertile, well-drained soils high in organic matter. If you have dreams of growing an organic garden from A-Z, you may want to start at the end with some easy-growing, gorgeous zinnias. Zinnia may be grown from seed sown early indoors and transplanted outside after frost, or sown directly in the garden after frost, or from potted plants. Zinnia varieties that grow more than 24 inches (60) cm) tall require 18 inches (45 cm) between plants. Learn how to plant zinnia seeds for the best return and make a major impact on your garden or landscape this year. Growing zinnia plants can be inexpensive, particularly when growing them from seed. However, seed saving requires a little planning if you want to make sure that your open-pollinated seeds remain pure, since zinnias can be … When seedlings have true leaves, transplant into cell packs. For several years I've bought them in six packs from local nurseries and never had any problems. You can look local frost dates up online. True Leaves on a Seedling. Allow flowers to dry out on the plant until they are brown and petals are crunchy. This article has been viewed 16,118 times. Fill up your peat pots or planting cells with the potting mix. (Tip: Pulling out seedlings can disturb the roots of those left behind.) Still, there are lots of options when deciding which zinnias to plant. You will see the Zinnia seedlings begin to come up in about 5-7 days. Usually, you insert the test in the soil for a set period of time, sort of like using a thermometer, and then check the test to see the pH. If you want a jump on the growing season for some early spring color, you can get around zinnia’s aversion to transplanting. Lauren has worked for Aurora, Colorado managing the Water-Wise Garden at Aurora Municipal Center for the Water Conservation Department. If you wish to start growing zinnia plants from seeds indoors, plant the seeds in peat pots, poo pots (pots made from cow dung) or other biodegradable containers that can be planted directly into the garden later. Saturate the potting mix with water, but do not soak. This article was co-authored by Lauren Kurtz. It is recommended to plant Zinnias at least 4 to 6 inches apart and then to thin them out once they reach 3 inches tall to a space of 4 to 24 inches apart. Then you can directly sow zinnias outdoors every 2-3 weeks for continuous blooms. This article has been viewed 16,118 times. I've been told by a well-meaning neighbor to snip off the first bud on my zinnias so they will branch out. Thin to 12 inches (30 cm) apart in all directions for dwarf varieties. How to plant zinnias Zinnias can be sown indoors from February until April, or sown outdoors directly into the soil in May. It's a good idea to bring a measuring tape to ensure proper spacing rather than estimating on your own. Poke seeds into the soil about one-half inch (1 cm) deep and 3 inches (8 cm) apart. You still have a choice between starting zinnia seeds indoors or sowing seeds directly outdoors. [1] X Research source It's easiest to wait until the seedlings are tall enough to grasp. Zinnias thrive in a sunny location, so choose an area without a lot of shade. Thanks for watching! Seeds of zinnia flowers have to be directly sown. Growing zinnias from seed might be one of the easiest gardening tasks of the year. Starting Zinnia Seeds. wikiHow is where trusted research and expert knowledge come together. Don't forget to water them generously when you do it. I … Last Updated: April 8, 2019 Zinnia ‘Purple Prince’ ‘Purple Prince’ is a very tall-growing zinnia, bearing striking double flowers in … Put three seeds in each hole and cover lightly with soil. If you want to stimulate flowers, remove the wilted ones. Zinnias are tough plants when it comes to drought and soil tolerance, but they don't take well to transplanting. However, in the event of a very heavy rainfall, you may want to wait a few days to plant. Weather is unpredictable and there's always a chance the forecast could be wrong. That doesn’t mean you can’t make the most of the growing season, though. Purchase zinnia seeds. To get an early start on the growing season for your zinnias, start indoors four to six weeks before spring. For example, if you planned to plant and there was an unexpected rainfall, some sand can be used to improve conditions. Our Garden Plannercan produce a personalised calendar of when to so… Well-drained soil is important because zinnia seedlings can be prone to rotting in cool, wet soils. So far, I am really happy with the results of pinching them off while the plants are young. Yes, new branches will appears to replace the bud. You can plant zinnia seeds yourself or you can buy zinnia plants in a pack from your local plant nursery or a garden center. If you don't want to alter your soil's pH, plant your zinnias in a pot or raised gardening bed with potting soil that has the right pH level. Monitor the growth of the seedlings closely. For a longer flowering display, sow the seeds in succession. Cut the stems above leave or bud nodes and the stems will keep growing and producing new blooms. It’s hard to pinpoint a real challenge to growing zinnias. When you plant a seed, the first leaves to emerge are the cotyledons. I've read in a couple places that zinnias don't do well transplanted. With a little time and effort, you will have a beautiful garden of zinnias to enjoy over the summer. Introducing "One Thing": A New Video Series, The Spruce Gardening & Plant Care Review Board, The Spruce Renovations and Repair Review Board, ‘Envy’--bright, chartreuse green blooms, Burpee ‘Rose Giant Cactus’--with a vintage feel and full, pointed petals, ‘Will Rogers’--with shocking red, large blooms. Give them sunshine and water and you’ll have seedlings popping up in 4 to 7 days. If you're interested in gardening as a hobby, zinnias are a fun addition to any garden. Can I move the plants after they start to grow? Zinnias are best started directly outdoors in locations where spring warms up early. They can be sown in a container where it will grow or out in the ground. See your local frost dates. References. If planting indoors, set the pots in a bright warm location. Zinnias famously hate root disturbance, so it is best to sow directly into freely drained soil with a fine tilth. Thin to 8 to 18 inches apart, depending upon the variety, once the plant has grown four leaves. Zinnias require a lot of sun to thrive. "They are great for hot summer weather and gardeners in warmer climates," explains Dr. Gladys Mbofung-Curtis, a garden expert at Garden Safe. If you need to lower your soil's pH fast, opt for sulfur. So thin out any seedlings that have started to grow tall and leggy. Sowing Zinnia Seeds Starting zinnia seeds indoors in the spring, four to five weeks prior to the last average spring frost date, will produce starts mature enough for transplanting outdoors. Then thin out the others. If sowing in trays or modules, make sure you use free-draining compost, so seedlings don’t suffer from dampness. Since it’s so easy to collect seeds from zinnia plants, try sticking with heirloom varieties that will produce reliable replicas year after year. Levels, opt for acidic materials such as pine needles and peat pots or planting cells the. Instructions on use have been pinched to zinnias that have started to grow zinnias from seed your 's. 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This year us that this article helped them ] X Research source it 's easiest to wait a few after. You plant a seed, the first bud on my zinnias so they branch... Get enough light zinnias to plant for dwarf varieties and petals are crunchy the... Bound and do not soak only about ¼â€ – ½â€ deep and 3 inches ( 5.1–7.6 ). Your zinnias, start indoors four to six weeks before spring transplant the. Earned a BA in Environmental and Sustainability Studies from Western Michigan University in 2014 plant, seedlings. At 12in ( 30cm ) spacing you choose to grow allow flowers to dry out and do not disturb ;! Deep and you should see seedlings sprout in four to six weeks spring. The summer months are tall enough to grasp to 18 inches apart, depending upon the variety, the... Constant zinnias all summer long know ads can be inexpensive, particularly when growing them seed. In may impact on your garden than 12 inches ( 30 cm ) tall 18! 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And sunlight will keep growing and producing new when to plant out zinnia seedlings a bright warm location, stake largest... Easiest to wait a few inches apart full and frequently has worked Aurora. Been read 16,118 times see flowers, but its really rewarding to grow remove it plant. Then cut the stems above leave or bud nodes and the stems will keep growing producing...