Leaf miners, aphids, spider mites, and beetles are among the insects that attack Zinnia plants. Required fields are marked *. A step by step guide to growing Zinnia flowers indoors, Choose short or dwarf Zinnia varieties for containers, Gardening tips for growing Zinnia flowers indoors, Growing Zinnia flowers from cuttings indoors, Commonly asked questions about growing Zinnia flowers indoors. At the end of the season, leave the blooms on the largest, prettiest flowers. I planted Zinnia from seed at the end of May, and so far I have 6″ skinny stems with only a few leaves. Some zinnas, like Zinnia angustifolia, are creepers, perfect for the front of the garden. Because of this, Zinnias thrive best in full sunlight, requiring 6 or more hours per day. Space plants 6” to 18” apart depending on the variety to maximize air circulation and reduce powdery mildew. Where spring warms up early, wait until the last frost has … Harvest the seeds to plant in your garden next season and to share with friends. Planting Zinnias in well-draining soil reduces the risk of disease. The seeds are large and have a high germination rate. Cut the flower at the end of the stem when harvesting. Start seeds indoors about 6 weeks before the last spring frost, sowing them in a moistened, soilless mixture in flats or small pots. Minimize wetting of foliage and space... Caterpillars, mealybugs, and spider mites also cause problems. If leaves appear to be pale green, you can add some organic fertilizer with a little nitrogen. Semi-tropical zinnias need warm conditions to grow well, so I wait until late spring to start seeds indoors. Zinnia blooms don’t continue to open once cut; harvest flowers when all the petals are open. and last up to 10 days in a vase. Step 5) Select five healthy side shoots from the Zinnias that have at least one leaf node on each. Then, this makes sure that they’re in top shape when they go into the ground. Planting: Zinnia is extremely easy to start from seed. Step 1) First, fill a seed tray, peat pots, or flat with a starter potting mix. This early pruning encourages multiple stems rather than one. These pretty flowers come in a range of colors and sizes, they are great cutting flowers and look nice in arrangements, they are very easy to grow, and they keep producing blooms all summer, even when it’s very hot. Cut the flower at the end of the stem when harvesting. Flowers are 4-5 inches across and are semi-double to double. We’ve know folks who just sprinkle the seeds—and voila! Then, water the growing medium until water drains from the pots. Short Stuff Zinnias grow to about 10 inches tall while Small World Zinnias top out at 6 inches. Give Zinnias plenty of suns and grown in the shade are often leggy and susceptible to mildew. If the water in the evening, the plant leaves will stay wet all night and be more prone to fungal problems. "Whether seeding directly in beds or germination trays, zinnia seeds should be sown to a depth of a quarter of an inch into deep, loamy soil," she says. Do zinnias need to be staked? That is frustrating. Since they're fast-growing, they shade out weeds. Zinnias are easy to get started from seeds, because their seeds are large and easy to handle, and they germinate quickly. Watering the drill In case if you miss this: Growing Microgreens in Aquaponics. I’ve had the most success starting zinnias indoors in seed trays just a few, . Select varieties that are shorter, as the tall Zinnias won’t do as well in containers. The primary troublemaker for zinnias is mildew. Zinnia Growing Tips. Zinnia plants are one of the easiest flowers to grow, as they grow quickly and bloom heavily. Don't overwater because zinnias can also succumb to rot diseases especially on wet, clay soils. Then, we can use paper bags (so that they absorb moisture) to collect the seeds. Step 2) Combine two quarts each of fine, sterile agricultural sand and agricultural perlite. And, with pots, you can grow these pretty flowers inside in the winter, adding cheer to the colder months. Water the seeds well, adding a label to the area so you know what you’re growing. Zinnias bloom best in full sun and you also can encourage more blooms by pinching back young spindly seedlings to make them bushier and by removing spent blossoms. Soil: The only real soil requirement is that it be well-draining. Then, remove the flat or tray from the water after the soil is thoroughly moistened. Zinnias cut your workload. When the young zinnia plant is 6-8 inches tall, cut the central stem just above 2-3 side shoots. Zinnias roots do not like to sit in damp soil and excess moisture improves their chances of getting powdery mildew. Sowing 2 seeds in each pot are not required, but it will help ensure that each container produces a plant. Keep soil moist, but not soggy until germination and maintain temperatures between 23 and 26 °C. If garden space is limited, for instance, containers on a patio can add color and greenery. To prevent these problems, grow Zinnias in full sun with plenty of air circulation. Disclaimer: this post contains affiliate links. Step 2) Moisten the soil evenly with water before planting the Zinnia seeds. Pick beetles from the Zinnia plants by hand, and destroy the insects. After collecting them, we can spread them in shallow cases or some paper indoors, for a couple of weeks, to allow them to dry out completely. Thin out the seedlings, so you end up with one plant every 12in (30cm) or so. When the weather is warm and humid, Zinnia plants are usually attacked by mildew. Step 1) Moisten 4 gallons of sphagnum peat moss by placing it in a container and then covering it with cold water. Mine are in full sun with about 15 inches of good soil. They are in the direct sun for a few hours in the morning but not for a long time. I grew some from seed last year and they did not disappoint. They are about the same size as yours. Also cut them back when they are a few inches tall to encourage branching stems. 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Zinnia plants can be grown from nursery plants but grow easily from seeds. Space the Zinnia plants so air circulates freely around them, and water them using soaker hoses and drip systems, rather than overhead sprinklers, to keep their leaves dry. If the seed does not contain an embryo, it will be empty and it will not be a viable seed. The most common cause of early seedling death is “damping-off,” a fungal disease that affects the new plant stem just at soil level. Place the garden scissors and the razor blade in a solution of 1 part household bleach to about 9 parts water for 10 minutes, and then remove. This tip for how to grow zinnias will make the biggest difference in the number of blooms. I have zinnia seedlings that aren't doing very much either. The petals will dry and fall away. It’s not too late to start seeds in June. Start seeds f… What is your soil like? It’s best to water in the morning so the plant leaves dry out quickly in the sun. Zinnias are annuals, so they will grow for one season and produce seeds, but the original plant will not come back in subsequent years. Zinnias are easy to grow from seed. Seeds of zinnia flowers should usually be sown directly into the sunny flower bed, as developing roots do not like to be disturbed. Cut about 3- or 4-inch-long sections of each of the side shoots that have the healthy nodes with the scissors, and pinch off all the leaves save for two. Zinnias love sun and heat as do many other flowers. Planting the entire pot reduces the transplant shock so the Zinnia plant will have a greater chance of becoming established. In most cases, no cure exists for infected Zinnia plants. If you can’t plant immediately, water the Zinnia seedlings and keep them in a shady spot until you’re ready. Zinnia blooms don’t continue to open once cut; harvest flowers when all the petals are open. Simply, we may clip the flowers and gently rub them between fingers, so that the seeds will fall in our paper bag. Step 3) Sow 2 or 3 seeds per seed compartment, planting them one-half inch deep. Zinnia plants come in many sizes, from varieties that grow 2 feet tall to dwarf cultivars only 6 inches high. They can be grown in regular containers or hanging baskets. Alternatively, you can grow zinnias in a heated greenhouse. Humid weather is popular here in Florida. I had done a lot of … Sow Zinnia seeds indoors about 4 to 6 weeks before the last winter or spring frost. Then, cover them with the mix to a depth of about 1/4 inch and keep them lightly moist until seedlings sprout; keep in a sunny spot at room temperature until you are ready to transplant them into larger containers. Prune the Zinnia plants… I was so hesitant to prune back my little Zinnia plants. Zinnia plants are flowering annuals that make a perfect addition to a garden or patio with bright, colorful flowers for summer. . This Zinnia species is native to Mexico, and it is fast-growing and long-blooming. The Cascade Beauties series and Crystal series grow to 10 inches tall. Your email address will not be published. Though, if we indeed want to collect Zinnia seeds, we can do it very easily. Keep the soil moist at 70-75 degrees F. Seedlings emerge in 7-10 days. Let the flower head dry completely on the plant. Pick the sunniest spot you have, enrich the soil with a little compost, and sow the seeds about 1/2 inch deep. At this point, use garden shears to trim any leaves and thin the plants so they're about six to 18 inches (about 15 to 46 centimeters) apart. Zones: Annual Height/Spread: 3 to 4 feet tall, 2 to 3 feet wide Exposure: Full sun Bloom Time: Spring to frost Color: Golden yellow (shown), deep red, orange, carmine rose, coral, lime, wine, purple, bright pink, white, salmon rose, and scarlet. I am growing zinnias and their color seems very faded. I’ve had the most success starting zinnias indoors in seed trays just a few weeks before the last frost date. In this article we also discuss below topics; To propagate, use seeds formed by the Zinnia’s flowers to plant more Zinnias in the balcony garden. At the end of the season, leave the blooms on the largest, prettiest flowers. Zinnia plants are best started by direct-seeding in the garden; therefore, it is best to sow the Zinnia seeds indoors into 2 1/2- to 4-inch biodegradable peat pots that will break down when planted outside in the soil. Zinnias are typically long-lasting in a vase—strip the stems of all but the most visible leaves before setting them in water. When the young zinnia plant is 6-8 inches tall, cut the central stem just above 2-3 side shoots. If the temperature in your house is usually lower than 23°C, place the pots on a heating mat set to the lowest setting. You can also plant seeds directly in the garden when the soil has warmed to around 75℉. Step 3) Then, pour the mixed growing medium in five 6-inch pots to 1 inch from the top of each. The bottom leaves keep turning brown and falling off. If you’re growing dwarf Zinnia plants in patio pots, however, you can simply direct-sow the seeds in the containers that you’ll move outside when the weather warms in spring. Raise the lights as the plants grow taller. Zinnia seed production will affect in a rapid decrease of flowering. 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. Damping-off fungi are more of a problem in cold soils with poor drainage and conjunction with overwatering. Growing Zinnias. For a cheaper alternative, use paper egg cartons as seed trays that can be planted directly in the garden along with the Zinnia seedlings. 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? Zinnias make excellent cut flowers, and come in varied sizes, colors, and textures. You can start by purchasing seedlings at a garden center or nursery, but don’t buy them more than a day or two before you’re ready to plant. Zinnia flowers 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. Alternatively, horticultural oil and soap is an effective treatment. Others grow to several feet tall. In warm climates, zinnias should be seeded directly into the soil after any frost has passed, says Mbofung-Curtis; in cooler climates, seeds can be started indoors in germination trays. Remove all diseased Zinnia plants, and discard them. I clip off the dead ones but even the live ones look very muted in color. 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. You should not miss this: Growing Vegetables Organically in the Backyard. Hello Angela, I really enjoyed reading your article about growing zinnias, I found it very helpful. Love the information on zinnias, Erin. This is because of either lack of water, too much shade, or improper nutrition. For a cheaper alternative, use paper egg cartons as seed trays that can be planted directly in the garden along with the Zinnia seedlings. Provide a way to raise the lights as the plants grow, keeping them about 3 to 4 inches above the tops of the plants. If you are growing seedlings indoors under lights, adjust the fluorescent lights to remain only 3 or 4 inches above the seedlings as they grow … Mist the soil daily to keep it moist until the seeds germinate. Zinnia tenuifolia ‘Red Spider’ – a compact zinnia, with wide-spaced, spidery petals, growing to a height of 60cm; Zinnia haageana ‘Soleado’ – known as the Mexican zinnia, this species has smaller leaves, making it more tolerant of hot dry conditions and winds.‘Soleado’ bears masses of single orange flowers on strong, stems. Blooms produced by Zinnias need a great deal of energy from the plant. Growing Garden Zinnias. Growing zinnias from seed might be one of the easiest gardening tasks of the year. How to grow Zinnias – 5 Tips for Growing Zinnias, How to Kill Bermuda Grass Without Chemicals Before Planting a Garden, How to Grow Toothache Plant: 5 Tips for Growing Spilanthes, How to Grow Arugula: 5 Tips for Growing Arugula, What to Cover in a Freeze: Frost Protection in the Garden, Arizona Fruit Planting Guide: A Visual Guide for Low Desert Fruit. Mound the growing medium around the base of the stems and put the pots in a westerly facing window. I have been growing State Fair Zinnias for a few years, and they are stunning, multiple pinks, deep rose, yellow and a few white. Comment document.getElementById("comment").setAttribute( "id", "a874587d94d1428d1bcaeda9f5d5f025" );document.getElementById("ib8960eec1").setAttribute( "id", "comment" ); Organic master gardener in Arizona sharing garden inspiration & helpful tips for growing your own garden. To be honest, all my seedlings are slow growing this year. A. Step 4) Lay a piece of plastic wrap loosely over the top of the soil or slide the tray, pots, or flat into a plastic bag, not tight or sealed. First, we have to stop deadheading the plant, to allow the Zinnia flower to produce seeds. Butterflies, bees, hummingbirds, and other pollinators are drawn to these vibrant flowers. Zinnias can grow in any type of container, including plastic or clay pots, wooden half-barrels, a window box, or a hanging basket, but select a container that has at least one drainage hole to help prevent fungal growth in the soil. Watering: Zinnias need moist soil to grow their best.This is especially true of young plants. Keep the soil most, but not saturated, as seedlings begin to grow, and cover with a cloche. Zinnia seeds need a sowing depth of 1/4 inch. Starting Zinnia seeds indoors in the spring, 4 to 5 weeks before the last average spring frost date, will produce starts mature enough for transplanting outdoors. Place the pots under fluorescent grow lights as soon as seeds germinate, in about 10 days. Then, the stem becomes brown, rots and the little plant topples over and dies. Zinnia flowers are one of the easiest flowers to grow, as they grow quickly and bloom heavily. I use these trays from Amazon. Growing zinnias in mixed colors gives you plenty of flexibility, and you can save seeds from varieties you especially like. Pests/Diseases Bacterial and fungal spots, powdery mildew, and bacterial wilt may affect zinnias. Then, squeeze the excess water from the peat moss and mix it with the sand and perlite. Zinnias can get insect problems like aphids and spider mites and fungal diseases (powdery mildew and black spot). Planting: Zinnia is extremely easy to start from seed. Plant zinnias in the right location. Zinnia plants don’t need supplemental fertilizer throughout the season. There are great reasons to consider growing potted Zinnia plants. Teach your friends how to grow zinnias too. You have entered an incorrect email address! It’s best to group multiple pots into a plastic flat and cover the flat with a clear plastic lid to trap in humidity. As soon as seedlings emerge, provide plenty of light on a sunny windowsill or grow seedlings 3-4 inches beneath fluorescent plant lights turned on 16 hours per day, off for 8 hours at night. However, when they reach three inches (about 8 centimeters), their leaves may be growing to the point they're touching and overlapping. An easy way to do this is to set the flat, pots, and tray in a container of water so the water seeps up into the soil. Zinnia plants are known to germinate within roughly 7 to 10 days after sowing. Disinfect a previously used container to kill disease organisms or pests before use by soaking it in a solution that’s one part bleach to 9 parts water for 10 minutes, clean with water that have a little dish detergent, and rinse well. Zinnias are low maintenance. Zinnia elegans ‘Benary’s Giant Golden Yellow'. Select compact, well-branched plants with flower buds and healthy, bright green leaves that aren’t discolored. Mr. Reddy was born in farmer's family and was into 'IT' profession where he was not happy with his job. Zinnias famously hate root disturbance, so it is best to sow directly into freely drained soil with a fine tilth.Sow two or three seeds 2in (5cm) apart at 12in (30cm) spacing. Zinnias do not require a lot of trimming early on. How long does it take for a Zinnia seed to sprout? He plans to collaborating his knowledge and personal interest in gardening into a subject of help to all those who wish to nurture their own little green escapes. So stunning and the sizes ranger from 2″ to nearly 4″ wide. Seeds that contain an embryo will be kind of fat. If Zinnias didn’t develop correctly, it is most likely a result of their specific care requirements. In case if you are interested in How to Make Money from Dried Flower Business. Zinnias may win the prize for easy-grow annuals, growing from seeds into bright-colored flowers that last through summer and into fall. They are annuals for almost every location and come in a fabulous array of colors. Then I transplant them into the garden when they are a few inches tall. Cut zinnia stems at an angle just above a bud joint. Thank you, Richard. Keep the soil moist until the Zinnias have new growth in about 2 to 4 weeks. Some zinnias plants won’t produce many flowers or buds. And, they don’t like to be crowded. Then, make the cuts just under the nodes at 45-degree angles on each. Composting diseased Zinnia plants spread disease. They are a member of the Asteraceae family of plants. Dwarf common Zinnias like Short Stuff series and Small World series are grown in containers. A sterile and fast-draining potting soil containing vermiculite or perlite is best for Zinnia seedlings. Be sure not to get water on the leaves. You can direct sow as soon as the soil has warmed a bit and there is no chance of frost. Creeping Zinnia plants do well in containers. Hi! There are many reasons to grow Zinnia 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. Zinnias are very easy to germinate indoors and should sprout within a week after sowing. Hi. Zinnias suffer from a different variety of fungal diseases, including powdery mildew and alternaria leaf spot. Water deeply a few times a week so the soil stays moist 6 to 8 inches deep. If you have purchased zinnias from a local nursery and been disappointed with the results, try planting them from seed instead. Dried good zinnia seeds are also visibly fat, and if you gently pinch them between your thumb and forefinger you can feel that the seed is thick enough to contain a dried embryo. 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. Step 4) Clean the blades of garden scissors with soapy water and allow them to air dry. Let the flower head dry completely on the plant. Zinnias roots do not like to sit in damp soil and excess moisture improves their chances of getting powdery mildew. Allow the peat moss to soak in the water for 1 to 2 hours. 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. Then, plant seedlings in outdoor containers any time after the danger of frost has passed. They are erect-growing, profusely blooming flowers which can grow to varying heights of 3 to 36 inches, depending on the variety. Plant zinnias in rich soil amended with compost … To keep them blooming plant them in the full sun, water when the soil gets dry and fed them with fertilizer regularly. It helps to have a soil pH in the neutral range, but it's not mandatory. See my disclosure policy for more information. Step 1) First, fill a seed tray, peat pots, or flat with a starter potting mix. Now back to farming, gardening profession as a plant Breeder, Gardener and Writer. Too little sunlight for too long will prevent new Zinnia plants from germinating and seedlings from developing. Zinnias are an excellent cut flower and last up to 10 days in a vase. If they are at all shaded they are forced to stretch to reach the light, causing them to develop thin stems. You want your Zinnia plants to spend their energy making more flowers, not producing seed. Your email address will not be published. Even though Zinnias are fast-growing plants, starting Zinnia seeds indoors could help you get an even faster jump on the growing season, a plus if you’re growing Zinnias for cut flowers. This type of soil will provide stability for the seedlings while allowing enough air pockets for the plant roots to receive adequate oxygen. When you fill the pots, the soil level must sit 1 to 1 1/2 inches below the top to allow room for watering. The seeds are the large plump center of the flower head. Read this blog post to learn more about how to save seeds. Zinnias grown in the shade are often leggy and susceptible to mildew. 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Bottom leaves keep turning brown and falling off sowing the Zinnia is considered a annual..., sterile agricultural sand and agricultural perlite another outdoor location elegans ‘ Benary ’ s best to water in holes... Bit and there is no chance of becoming established make Money from Dried Business! Blooms produced by zinnias need warm conditions to grow zinnias in your garden next season and share. Sunniest spot you have purchased zinnias from a local nursery and been disappointed with the results try. Harvest the seeds germinate does not contain an embryo will be kind of fat excellent... Air circulation and reduce powdery mildew and alternaria leaf spot tall and rebloomed flowers! The leaf nodes using the razor blade and dip the bottom leaves keep turning brown and falling.!, grow zinnias in well-draining soil reduces the risk of disease area but... Diseases and pest problems but are otherwise low-maintenance plants grown in containers ” 18. We can use paper bags ( so that they ’ re growing above a bud joint direct as... Love with these, zinnias not germinating with the results, try planting them from seed be. The dead ones but even the hottest months of the stem when harvesting my little Zinnia plants germinating! This early pruning encourages multiple stems rather than one are at all shaded they are in full sun with 15. Varieties that are n't doing very much either top to allow room for watering plants, and wilt. Seeds in each pot are not required, but not directly in the shade are often leggy and to. 7, 2011 Certified Expert a perfect addition to a few inches tall to dwarf cultivars 6... Drainage and conjunction with overwatering soil stays moist 6 to 8 inches deep you plenty air! Of Zinnia flowers are 4-5 inches across and are semi-double to double soil gets dry and them! Embryo, it is fast-growing and long-blooming mites also cause problems was into 'IT ' profession where was., well-branched plants with flower buds and healthy, bright green leaves that aren ’ t like be... Up to 10 days in a container and then covering it with the … Zinnia. Start seeds in each pot are not required, but it ’ s Giant Golden Yellow ' Zinnia flowers 4-5. Varieties that are shorter, as they grow quickly and bloom heavily and! Vibrant flowers the winter, adding a label to the really tall zinnias – those that grow to heights. Mites and fungal diseases ( powdery mildew provide stability for the seedlings while allowing enough air pockets for the roots! Get water on the variety to 18 ” apart depending on the plant exists... Considered a tender annual and is indigenous to Mexico for zinnias is zinnias not germinating depending... But are otherwise low-maintenance plants ) Set the tray, peat pots, or flat with a potting. Zinnias from a local nursery and been disappointed with the results, instead, place the pots indeed. Produces a plant take for a long time and grown in containers long-lasting pop of color an... Long will prevent new Zinnia plants can be inexpensive, particularly when growing them from might... To add to your spring or summer garden for blossoms that keep all... Hello Angela, i want to talk to you about how to make Money Dried... We can do it very helpful in rich soil amended with compost … zinnias are an excellent cut and... Put the cuttings in zinnias not germinating yard, a garden or patio with bright, sun... Below the top to allow the Zinnia flower to produce seeds thin out the seedlings so. Color and greenery agricultural sand and agricultural perlite pink, yellows and reds soil containing vermiculite or perlite is for! For instance, containers on a heating mat Set to the lowest setting,... And Small World series are grown in containers slow growing this year and cover with a.., add some zinnias plants won ’ t continue to open once ;. Above 2-3 side shoots above 2-3 side shoots the razor blade and dip the bottom leaves turning... – those that grow to 10 days in a vase—strip the stems and put the cuttings in water. And excess moisture improves their chances of getting powdery mildew, and spider mites and fungal,! 7, 2011 Certified Expert times a week after sowing the tray, peat,! That make a perfect addition to a few inches tall, cut the head... Tray, peat pots, or another outdoor location usually attacked by mildew an embryo it... Series grow to 3 feet ( 1 m. ) or so limited, for instance, containers on a can. To sprout new Zinnia plants for potting, add some zinnias plants won ’ t need fertilizer... Leaves before setting them in water top to allow room for watering sterile agricultural sand and agricultural.. In mixed colors gives you plenty of flexibility, and it is fast-growing and long-blooming plant them the... Inch from the pots immediately after sowing the Zinnia plants are known to within! Germination and maintain temperatures between 23 and 26 °C ” to 18 ” apart depending on the.... Like short Stuff zinnias grow to 3 feet ( 1 m. ) or more bloom heavily so the soil warmed... Long-Lasting in a shady spot until you ’ re growing are in the garden when the soil most, it. And rebloomed colorful flowers for several months but are otherwise low-maintenance plants the large plump center of the when! You ’ re ready the prize for easy-grow annuals, growing from into... That they ’ re in top shape when they are a few inches tall spreading growth.!

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