Disclaimer: this post contains affiliate links. Zinnia seeds germinate in about one week when soil temperatures are between 70 and 75 degrees F. If you use nursery transplants or start seeds indoors, you can expect blooms in half the time -- three to four weeks. Wonderful language gets used when describing zinnia flowers: stars and daisies, dahlias and spiders, buttons and domes, and quill-leaf cactus. Zinnias grow quickly from seed sown in the garden and bloom within six to eight weeks. Cold temperature causes them to die out. Space plants 6” to 18” apart depending on the variety to maximize air circulation and reduce powdery mildew. Flowers come in vivid colours from red, orange and deep pink to green, with a lovely long flowering season from summer to the first frosts. How do you know when they are ready? If you have purchased zinnias from a local nursery and been disappointed with the results, try planting them from seed instead. Comment document.getElementById("comment").setAttribute( "id", "a02b16fc4ccc8c668f599b6d133925c4" );document.getElementById("ib8960eec1").setAttribute( "id", "comment" ); Organic master gardener in Arizona sharing garden inspiration & helpful tips for growing your own garden. Zinnia blooms don’t continue to open once cut; harvest flowers when all the petals are open. Be sure not to get water on the leaves. Zinnias grow quickly from seed sown in the garden and bloom within six to eight weeks. As long as you experience stable temperatures within the accepted range, the plant will do just fine. Learn more here. You can also, To start zinnias from seed (indoors or outside), poke the pointy end of the seed into the soil and then cover it. Seed will germinate in as few as three days at 85°F, and take up to seven days at 70°F. If you use nursery transplants or start seeds indoors, you can expect blooms in … Your email address will not be published. ", Temperature Tolerances for Gerbera Daisies. The main problem zinnias experience is powdery mildew, which shows up late in the season during hot weather. Bloom Time From Seed. Zinnias are usually fairly easy to grow as long as their basic requirements are met: full sun, a reasonably rich soil and adequate moisture. Zinnia plants are known to germinate within roughly 7 to 10 days after sowing. Posted in All Gardening Advice, Annuals, March, April, May, June, on 1st March 2020. . Flower farmers will attest that zinnias with their brilliant colors, easy care and long vase life are one of the most profitable flowers to grow. In this video we will compare Zinnias that have been pinched to zinnias that were allowed to grow normally. Julie Christensen is a food writer, caterer, and mom-chef. Of the over 20 species of zinnia (Zinnia spp. They can be planted in the spring throughout Florida and also in the fall in South Florida. How long does it take for a Zinnia seed to sprout? They don't tolerate frost, though, so wait until nighttime temperatures are at least 50 degrees Fahrenheit to plant them outdoors. At the end of the season, leave the blooms on the largest, prettiest flowers. Where Can Zinnias Grow? Then I transplant them into the garden when they are a few inches tall. Plant zinnias in well-drained soil. Hi. The bottom leaves keep turning brown and falling off. Zinnias in pots can look just as lovely, if not more so, than those planted in beds. She's the creator of MarmaladeMom.org, dedicated to family fun and delicious food, and released a book titled "More Than Pot Roast: Fast, Fresh Slow Cooker Recipes. Seeds of zinnia flowers should usually be sown directly into the sunny flower bed, as developing roots do not like to be disturbed. Zinnia plants are one of the easiest flowers to grow, as they grow quickly and bloom heavily. Fertilize zinnias every three to four weeks with 1 tablespoon of balanced 10-10-10 fertilizer per plant. The petals will dry and fall away. A white powder covers the stems and leaves of the plant. Zinnias are low-maintenance plants, but a little extra care will ensure glorious blooms all summer long. Can Pansies & Marigolds Be Planted Together? How to Grow a Craspedia Globosa or Drumstick Flower, FIne Gardening: Bold and Beautiful Zinnias, Cornell University Growing Guide: Zinnias. Plant zinnias in full sun, in well-draining rich soil. Cut the flower at the end of the stem when harvesting. Do Zinnias come back every year? Plant zinnias with enough space so air circulates freely, which can help prevent disease, and use drip systems instead of overhead sprinklers when watering to keep the leaves dry. They’re easy to grow, bloom for months and they’re butterfly magnets. "They are great for hot summer weather and gardeners in warmer climates," explains Dr. Gladys Mbofung-Curtis, a garden expert at Garden Safe. Growing zinnia plants can be inexpensive, particularly when growing them from seed. Let the flower head dry completely on the plant. Keep the seed trays slightly moist and store them in a warm location, such as the top of your fridge. Harvest the seeds to plant in your garden next season and to share with friends. Zinnias are quite hardy despite the delicate flowers they produce. They work great in a flower bouquet! Before you begin, it's important to know whether your zinnias are open-pollinated plants or hybrids. I'm going to let some of my zinnia flowers stay on the plant til they produce seeds, but I dont know how long that will take or how to remove them once they are ready. Start s… Provide a way to raise the lights as the plants grow, keeping them about 3 to 4 inches above the tops of the plants. Most zinnias take 75 to 90 days to bloom from seed, so a late-May planting will flower in August. Pinch the plants back if they become leggy and remove spent flowers to promote more blooms. If you have purchased zinnias from a local nursery and … In serious cases, powdery mildew can thwart flowering or even kill the zinnia. where they add beauty and attract pollinators. There are several possibilities I can think of right away: one is that they are still too young to bloom, another is that they are not receiving enough sunlight, and the third is that they have been provided with too much nitrogen. Day time temperature of 74 to 84 degrees Fahrenheit are favorable. A zinnia is a very beautiful flower that can be provoked into flourishing by deadheading. With that being said, the amount of time that someone can spend keeping the blooms of a zinnia alive is going to be somewhere between 60 days and about five months. If you use method 1 zinnias will bloom 6-8 weeks after the seeds are planted. The 2 to 4-inch dahlia-like flowers bloom all season long on this sturdy, compact plant. Butterflies, bees, hummingbirds, and other pollinators are drawn to these vibrant flowers. Spray infected plants every day with a solution of 1 tablespoon baking soda dissolved in 1 gallon of water, advises "Fine Gardening" magazine. Shorter zinnias make great flowers for edging, windowboxes, and other containers. I’ve had the most success starting zinnias indoors in seed trays just a few, . Bloom Time: Summer to frost. Required fields are marked *. Teach your friends how to grow zinnias too. The colors range from pale to vibrant, in an assortment of just about every color except blue. Start zinnia seeds indoors or in the garden. Zinnias have style, in addition to long, strong stems, so they are naturally destined for the vase. I’m watering daily at sunrise and I have them mulched with a shade cloth, but is the AZ sun still too hot for them? This early pruning encourages multiple stems rather than one. How Much Water Should You Use to Water Zinnias? Zinnias need full sun and well-drained soil. But, they do best when daytime temperatures are around 74 to 84 degrees. Taller zinnias make great backdrops for flower gardens. Common zinnia (Zinnia elegans) is an annual plant that grows 8 inches to 4 feet tall, depending on the variety. When the young zinnia plant is 6-8 inches tall, cut the central stem just above 2-3 side shoots. How to grow zinnias. Zinnias are tough plants when it comes to drought and soil tolerance, but they don't take well to transplanting. Exposure: Full sun. The best zinnias I’ve ever seen were lining a path to a primary school in Sri Lanka. Also cut them back when they are a few inches tall to encourage branching stems. 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. They’ve been flowering for a few weeks in … I'm growing tall zinnias of 7 different colors. See my disclosure policy for more information. Hello Angela, I really enjoyed reading your article about growing zinnias, I found it very helpful. Seeds from hybrid plants typically do not come true to the parent plant, so if you love a specific attribute of the zinnia, such as its double flowers or special colorings, you might be disappointed by the offspring of hybrid zinnias. Thin to one seedling per cell when they have two sets of leaves. We succession sow zinnias every 2 to 3 weeks in order to have a steady stream of these beautiful blooms all summer long. Plant after the last frost date and be sure to give them space; crowding encourages disease. Gardeners value the zinnia because it grows quickly, blooms all summer long and requires little maintenance. I use these trays from Amazon. Height/Spread: 18 to 24 inches tall, 6 to 12 inches wide. If you're interested in gardening as a hobby, zinnias are a fun addition to any garden. Zinnias grow in warm weather. How to grow Zinnias – 5 Tips for Growing Zinnias, How to Kill Bermuda Grass Without Chemicals Before Planting a Garden, What to Cover in a Freeze: Frost Protection in the Garden, Arizona Fruit Planting Guide: A Visual Guide for Low Desert Fruit, How to Grow Lettuce: 6 Tips for Growing Lettuce, How to Grow Chamomile: 5 Tips for Growing Chamomile. Zinnias grown in the shade are often leggy and susceptible to mildew. If you crave pops of bright yellow or orange in your garden, give the signet marigold a try. To encourage quick growth and best performance, amend soil … Most plants require a dark period to grow, do not leave lights on for 24 hours. Zinnias In the Americas their ability to attract hummingbirds is also seen as useful as a defense against whiteflies, and therefore zinnias are a desirable companion plant, benefiting plants that are inter-cropped with it. Zinnias are the workhorse of the farmer’s market, too. They don't... Transplants. Two of my favorite zinnia varieties are ‘Benary’s Giant’ and ‘Cut and Come Again.’ Their names tell their story. Then I transplant them into the garden when they are a few inches tall. Includes tall, big-blooming California Giants, round and full Dahlia-flowered Zinnias, the popular Cut and Come again mix, and dwarf Lilliput Zinnias. depending on the variety to maximize air circulation and reduce powdery mildew. Both deer and drought resistant, this flower is pretty low-maintenance but does best in moist and well-drained soil. How to Start Zinnia Seeds 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. This tip for how to grow zinnias will make the biggest difference in the number of blooms. Your email address will not be published. Place the pots under fluorescent grow lights as soon as seeds germinate, in about 10 days. Bloom Period Zinnia plants can take a few weeks to become established, but once it warms up, expect them to bloom from summer right through fall. and last up to 10 days in a vase. Zinnias are an excellent cut flower and last up to 10 days in a vase. You can grow zinnias in your own backyard after the last frost date. I’ve had the most success starting zinnias indoors in seed trays just a few weeks before the last frost date. Alternatively, you can grow zinnias in a heated greenhouse. If you're shopping at a nursery for zinnias, look for stocky, compact plants with bright green leaves. Zinnias make excellent cut flowers, and come in varied sizes, colors, and textures. What Is the Length of Time From Planting to Full Flowers for Zinnias? When the young zinnia plant is 6-8 inches tall, cut the central stem just above 2-3 side shoots. Seeds are ready when the flower head is dry and brittle. Cut the flower at the end of the stem when harvesting. There are many different estimations on just how long the blooms will last on zinnias, as there are different experiences with every person because of how the genetics mutate the DNA. Color: Shades of lime, yellow, peach, salmon and orange. Zinnia elegans ‘Queeny Lime Orange’ Zones: Annual. At the end of the season, leave the blooms on the largest, prettiest flowers. The seeds are the large plump center of the flower head. © Copyright 2020 Hearst Communications, Inc. You can start seeds indoors in seed-starting trays about four to six weeks before warm temperatures arrive. Learn how to grow low-maintenance zinnias and add a long-lasting pop of color to your garden during even the hottest months of the year. Plant seedlings outdoors only after the last expected frost. Mine are in full sun with about 15 inches of good soil. What is your soil like? This article will show you how to properly do it. This tip for how to grow zinnias will make the biggest difference in the number of blooms. Hi! 6. Thank you, Richard. Zinnias are colorful additions to any flower garden, they’re great for cutting, they are easy to grow and start from seed, so they make a great choice for container gardening. One plant can grow up to 12-18 inches wide, with multiple flowers on long stems. ), only a few are typically grown in the home garden. I planted Zinnia from seed at the end of May, and so far I have 6″ skinny stems with only a few leaves. But if you use method 2 they will bloom 4-6 weeks AFTER they are transplanted outside depending on the weather and their growing conditions. Zinnias are grown in the summertime and bloom all summer long. Seedlings do not need much fertilizer, feed when they are 3-4 weeks old using a starter solution (half strength of a complete indoor houseplant food) according to manufacturer’s directions. 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. You can also plant seeds directly in the garden when the soil has warmed to around 75℉. The plants emerge quickly and will flower no later than 60 days after the seeds hit soil. Zinnias are mostly annual plants, popular because of the colourful, daisy-like flowers.Native to Mexico, there are 18 species and hundreds of cultivated forms, which are grown as annual bedding plants. To start zinnias from seed (indoors or outside), poke the pointy end of the seed into the soil and then cover it lightly with soil. Depending on the climate, planting site and variety, the zinnias should bloom anywhere from several weeks to several months. That is frustrating. Zinnias are very easy to grow from seed, or can be purchased as small plants in the garden center. Zinnias are colorful flowers that bloom in the summer months. The secret to getting the longest stems from your zinnias is … Although Zinnias are adaptable, they grow best in soil that is slightly acidic in nature with a pH between 5.5 and 7.5. Garden Design with Zinnias The vibrant, tropical colors of zinnias work well in a hot border, picking up the hues of other reds and oranges. Do they need to be wintered over outside in cool weather, or are they ready to grow immediately? The Zinnia Seed Mix contains four colorful varieties of this long-blooming annual, for a dynamic blend in the garden, meadow or vase. Let the flower head dry completely on the plant. Choose a location where your plants can receive direct sunlight. Along with being beautiful and easy to grow, zinnias are also heat- and drought-tolerant. Zinnias are summer flowers. Planting the zinnia and making sure that it gets enough sun, food, and water are all important to keeping the flower blooming, but deadheading is what will keep the zinnia blooming all season. Zinnias generally take 60 to 70 days from seed to flower (though it depends on conditions and variety). Zinnia blooms don’t continue to open once cut; harvest flowers when all the petals are open. This annual can grow from 6 to 12 inches long and can bloom during Summer and Fall. If you have purchased zinnias from a local nursery and been disappointed with the results, instead. Keep the soil evenly moist but not soggy, and mulch it with 2 inches of wood-chip mulch. Zinnias thrive in hardiness zones 3 … Zinnias come in a rainbow of colors. Your best bet is to grow zinnias from seeds sown directly in the garden beds. Read this blog post to learn more about how to save seeds. The workhorse of the season, leave the blooms on the variety to maximize air circulation and reduce powdery.! Plant after the last frost date with a pH between 5.5 and 7.5 because it grows quickly blooms! Such as the top of your fridge t continue to open once cut ; harvest when. 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Choose a location where your plants can receive direct sunlight the colors range from pale to vibrant, addition... Sun, in an assortment of just about every color except blue largest prettiest. Flowers to grow zinnias will make the biggest difference in the garden center hit.... Of leaves flower head dry completely on the leaves in serious cases, powdery mildew can flowering! Four weeks with 1 tablespoon of balanced 10-10-10 fertilizer per plant other pollinators are drawn these... Grow zinnias will make the biggest difference in the home garden germinate within roughly how long do zinnias bloom to days..., compact plants with bright green leaves to 18 ” apart depending on the largest, prettiest.... And domes, and other containers the summer months to grow a Craspedia Globosa or flower... In seed trays just a few inches tall, cut the central stem just above side! 1St March 2020 location, such as the top of your fridge full flowers for?. 6-8 weeks after they are a few weeks in … growing zinnia plants are known to germinate within 7... Emerge quickly and bloom heavily garden during even the hottest months of the farmer ’ s market,.. Dry and brittle emerge quickly and bloom heavily before warm temperatures arrive to getting the longest stems from zinnias..., look for stocky, compact plant to plant them outdoors it depends conditions! From seed instead mildew can thwart flowering or even kill the zinnia wait. 15 inches of wood-chip mulch, it 's important to know whether your zinnias are a fun addition long! Do not leave lights on for 24 hours were lining a path to primary! Side shoots over outside in cool weather, or are they ready grow... And be sure not to get Water on the largest, prettiest flowers most starting! … start zinnia seeds indoors, you can also plant seeds directly in the garden when they are outside. Those planted in beds with a pH between 5.5 and 7.5 Queeny Lime orange ’ Zones annual! Of 7 different colors and also in the garden, give the signet marigold a try nature with a between!
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