They'll need to withstand extremes of cold, wet, or dryness, maybe even passing through an animal at some point along the way. The ancestors of our hybrid garden zinnias (Zinnia spp.) If the water they’re soaking in is warm, it may take less time. are plants native to Mexico, Central America and South America. Rinse the seeds several times with water before planting and plant them as usual. This means they need to be tough.And it also means they can be reluctant to germinate, with their hard protective shells forming a barrier that the seed embryo needs time to break through. Label the variety and date clearly on the bag. Growing watermelon can be a great addition to your vegetable garden but how do you start watermelon seeds? Chaney graduated from the University of Arizona in 1992 with a Bachelor of Arts in English. In short, seeds have developed over millions of years with defenses to survive awful conditions. Look for a place that gets plenty of direct sun to promote strong, healthy flowers. We’ve always liked to use warm water and start the soaking at bedtime, then plant first thing in the morning. The seed-growing process can be triggered by soaking seeds. Soak the wrong seeds for too long and you risk 'drowning' them, where they begin to rot and ferment before germination can start. Soak your seeds for 1-2 hours. They tolerate various soil types but need good drainage. Seeds are buried in the flowerhead base underneath the little individual flowers. Any seeds that are large enough to see (ha), I sometimes give a quick soak in peroxide water before planting. Once they do, make sure they receive plenty of light from a nearby window. [6] I’ve listed everything below and you can save the download for future reference. The holes should be about a quarter of an inch (.6 centimeter) deep for the zinnias … © Copyright 2020 Hearst Communications, Inc. Moisten the soil evenly with water before planting the zinnia seeds. The best soil for zinnia flowers is rich in organic matter, but these plants will adapt to most soil conditions. Zinnias usually sprout in a couple of days. The plants need water to get established but then are fairly drought-tolerant. Then, wet the seed starter mix well. On the upside, though, when you do plant them, you’ll be able to see where you are placing them a … Any seeds that are large enough to see (ha), I sometimes give a quick soak in peroxide water before planting. They grow in hot climates without cold winters, so seeds don't need cold treatment to germinate. Wrap a dry paper towel around the damp paper towel to help keep things moist but not too wet (which could become moldy). The germination medium must be sterile and well-drained. BUT, some experts will say that soaking will reduce the germination. The shells of these seeds are very thick, so they might not germinate well if they are not thoroughly soaked. When the soaking is complete, it’s time to plant. Smaller seeds such as zinnia and marigolds can be soaked as well. An easy way to do this is to set the flat, pots or tray in a container of water so the water seeps up into the soil. Click on the photo to see a fuller version of it. Then they will be ready to put outside when the air and soil temperature warms up. Then they will be ready to put outside when the air and soil temperature warms up. I use nailclippers and carefully chip a tiny piece off. Planting Time: Warm-season vegetables can’t go outside until after the last frost while cool-season veggies can go outside up a month before … Place in a ziploc bag and seal. Remember that germination is less successful in cold soil. Seedlings don't handle transplanting well unless they are in biodegradable pots and can be set directly in place without disturbing the roots. Soak the seeds overnight before planting. Moisture is important in early weeks, but make sure it doesn’t get soggy. Also, make sure it has good air circulation to help prevent foliar diseases such as powdery mildew, says The Old Farmer's Almanac. You can also soak seeds overnight in vinegar before planting. How To Grow Thunbergia From Seed: It is recommended to soak the Black-eyed Susan vine seeds over night in tepid water. Let us show you the way. Hybridizers generally produce a cultivar type with an assortment of colors within it. Zinnia flowers are pollinated by bees and butterflies, and some varieties of zinnias are more attractive to butterflies than others. To start your zinnia flowers, begin by planting zinnia seeds indoors approximately five to seven weeks before the last spring frost. Zinnias are annuals, so they’ll grow for one season and produce seeds, but the original plant will not come back in subsequent years. Remember, whether or not a seed should be dried before planting all depends on the type of seed in question. Summer annuals such as zinnias, moss roses, vinca, cosmos, marigolds and purslane are still blooming, but so are some of the cool-weather flowers. 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. A step by step guide to growing herbs indoors from seeds. Zinnias famously hate root disturbance, so it is best to sow directly into freely drained soil with a fine tilth. Keep the soil moist but not soggy until germination, and maintain temperatures between 75 and 80 degrees Fahrenheit. Generally, zinnia seeds will start to sprout between seven and 10 days. Seeds can be planted indoors 6-8 weeks before the last frost and the seedlings can be easily transplanted into your outdoor garden later on. We’ve been told the soaking water should be changed and we’ve been told it … I have used wet paper towels to germinate home-hybrid zinnia seeds. A regular size paper towel folded in half will easily fit… If you use very hot water, the soaking time will decrease. Kohlrabi seed propagation starts with fertile soil. Enjoy them all summer until the first hard frost arrives in fall. Many seeds have evolved to survive winter in a dormant state before germinating in spring. Following the soaking, sow Thunbergia seeds outdoors after the last frost in prepared seed bed. Soak one seed variety per ice-cube-cell. Wait until the zinnia sprouts are at least three or four weeks old before applying any fertilizer. Because the purpose of soaking seeds is to break through that hard protective outer shell and to give the seed a good healthy drink before it is planted, small seeds are probably not good candidates for soaking. How long to soak your seeds in water. If less than 5 seeds sprout (under 50% germination rate), you may want to discard the seeds, or plant more than you think you’ll need. The ancestors of our hybrid garden zinnias (Zinnia spp.) If you're growing a plant you don't know much about look it up to see whether the seeds need any sort of treatment. Once the seedlings start to flower, you will need to deadhead them often to promote more blooms. They both have pros and cons. Moisten the soil evenly with water before planting the zinnia seeds. Because the purpose of soaking seeds is to break through that hard protective outer shell and to give the seed a good healthy drink before it is planted, small seeds are probably not good candidates for soaking. Seeds don't need any advance treatment. To start Shasta Daisies from seed, you have two options: start them indoors or direct sow outdoors. 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 Once they are hardened, zinnia flowers are ready to be planted in your outdoor garden. Space seeds about 6 inches apart. The reasons to dry seeds before planting listed below are specifically for those type of seeds that do need to be dried before planting. Petunias bloom until … Let us show you the way. Space plants as recommended for the variety so zinnias aren't crowded. Wide flowers give a sturdy landing platform for even big butterflies like tiger swallowtails. Following the soaking, sow Thunbergia seeds outdoors after the last frost in prepared seed bed. For nearly 20 years, Karon has covered homes, outdoor living and home improvement for print and online publications. EXCEPTION: Some smaller seeds such as lettuce prefer light to germinate and should barely be covered. If you are interested in adding zinnia to your butterfly garden, try "Cut and Come Again," a large double flower in pink, scarlet, yellow and orange. Click to see full answer 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. Moreover, it is best to soak dried seeds in water for 4-6 hours before planting. A staple in the home garden for generations, zinnias (Zinnia elegans) are flowering annuals that make a perfect addition to a garden or patio with bright, colorful flowers for summer. Do this by setting them outside in a covered area like a covered porch or a carport for at least a week before transplanting them. Once they have two sets of leaves, thin zinnia sprouts so there is one seedling per egg carton section or seed tray compartment, says Burpee. Spread seeds out in a single layer on the paper towel. This promotes deep root growth, more lasting beauty and better harvest from your plants, and helps retard weed growth. Use a paper towel or coffee filter to drain the water. Sow two or three zinnia seeds per seed compartment, planting them 1/2 inch deep. The evening before you plan to plant, place the seeds in a small saucer and cover them with water. Fill a seed tray, peat pots or a flat with a starter potting mix. 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. I never tried them on wet paper towels. For a cheaper alternative, use paper egg cartons as seed trays that can be planted directly in the garden along with the seedlings. But natural cold stratification usually results in the death of many seeds (which is why plants that rely mostly on seeds for reproduction make so many of them--it's insurance). After that, follow the directions on the seed packet to know how deep to plant the sprouted seeds. For thick-skinned seeds like peas, aim for 8 to 10 hours (or overnight, assuming you soak them right before bed and sow them first thing in the morning). There are far more options than I’ve listed here but this is a good start. 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. Soakin… You can also start them indoors in peat pots if you keep the soil temperature at 70 to 80 degrees Fahrenheit with a heating mat. The easiest indoor plants to grow from seed include Cat grass, ... Is it helpful to soak seeds before planting them? A few herbs require to be chilled before they will germinate. Seeds can be planted indoors 6-8 weeks before the last frost and the seedlings can be easily transplanted into your outdoor garden later on. The evening before you plan to plant, place the seeds in a small saucer and cover them with water. I don't know about all seeds, but I think most, if not all, commercial zinnia seeds have been heat treated to kill diseases on the seeds. 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 … Zinnias are best started directly outdoors in locations where spring warms up early. Depending upon the variety, kohlrabi will be ready to harvest 40-60 days from planting. Should I soak zinnia seeds before planting? Store dried flowers in a paper bag until you're ready to tear them apart and extract the seeds. You should soak the seeds for 24 hours. Remove the flat or tray from the water after the soil is thoroughly moistened. Or, to get a jump start on the growing season, sow Thunbergia seeds indoors 6 - 8 weeks before outdoor planting. In order to do that you need to nick first, then soak. The area should have good drainage because zinnia flowers don't like to be wet. Don’t use soil from your garden in seed starting pots. Sow two or three seeds 2in (5cm) apart at 12in (30cm) spacing. (Write it down!) Other flower seeds that will germinate faster include moonflowers, lupins, sweet peas and morning glories. Plant zinnia seeds a quarter inch (.6 centimeter) deep. Seed Scarification: nicking, breaking, softening, or otherwise weakening of the seed coating meant to speed up germination. Do not seal the plastic bag and make sure it is not tight. When starting kohlrabi from seeds, plant the seeds about ¼ inch deep in rows that are 2 feet apart. Plant seeds indoors or, later, directly in the garden. Grown in USDA hardiness zones 3 to 10, zinnia flowers tolerate heat well but not frost. Caterpillars, mealybugs, and spider mites also cause problems. Zinnia flowers need to get used to outdoor conditions before you move them to the ground. Lots of perennial seeds require a period of moist cold (cold stratification) before they will germinate. Regular fertilizing helps plants continue flowering. Sometimes hybrid cultivars don't develop many seeds. This allows the seeds to absorb more oxygen, helping them sprout efficiently. Seedlings should appear in about a week. The reasons to dry seeds before planting listed below are specifically for those type of seeds that do need to be dried before planting. - Cut some tiny squares of white plastic and write a number or letter on each. Heavy humidity might be your only obstacle to constant zinnias all summer long. Butterflies also visit "Royal Purple" with large purple flowers and "Sunbow Mix," giant cactus-flowered zinnias of various colors. In the wild, a seed can expect to encounter harsh heat and cold, very wet or dry conditions and may even need to survive the acid-filled digestive tract of an animal. But in your modern day garden, a seed is relatively pampered. Lay a piece of plastic wrap loosely over the top of the soil or slide the tray, pots or flat into a plastic bag. Purpose of Drying Seeds Before Planting. Most cultivars descend from Zinnia elegans, native to Mexico, but other species also have garden-worthy varieties. To get an early start on your garden, sow zinnia seeds indoors before the last spring frost. Seems to work well even in older seeds. Soaking sweet pea seeds is supposed to soften the tough outer skin so that the seed can germinate more easily. When you do feed them, use a diluted indoor houseplant food and follow the listed directions. The average growing time is usually between 4 and 12 weeks. The holes should be about a quarter of an inch (.6 centimeter) deep for the zinnias to grow safely. This is the secret to boosting germination rates and getting more plants to grow, even if your timing is off in the garden. After sowing, fill in the furrow and firm down. Rather, they need warm temperatures, plenty of moisture and sunshine to germinate and grow well. On a more practical level, soaking adds another layer of complexity to the whole plant-growing process. Allow the seeds to soak in the water overnight. Cathryn Chaney has worked as a gardening writer since 2002. A common seed germinating trick is to soak the seeds in lukewarm water for a few hours prior to planting. Zinnias have a variety of flower forms and plant heights. 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. Purpose of Drying Seeds Before Planting. Seeds That Have the Shortest Days to Bloom, University of Illinois Extension: Plant Palette: Zinnias, Brooklyn Botanic Garden: Zinnias-If You Plant Them, Butterflies Will Come, Burpee Seeds and Plants: All About Zinnias, Snapdragon Varieties That Bloom All Summer. Soak the garden for up to 4 hours at a time, letting water soak deep, then let upper soil layers dry out before watering again. Fertilize lightly to encourage growth and plenty of flowers. Free Printable Seed List. Some flower seeds like poppies, zinnias, nasturtiums, marigolds, and petunias are also wonderful options for novice gardeners. Growing watermelon can be a great addition to your vegetable garden but how do you start watermelon seeds? You have to be careful so that the seed inside isn't injured. ... Soak the seeds overnight before planting. Allow the seeds to soak in the water overnight. Soaking seeds in … This is noted on your seed packet. Set the tray, pots or flat in a bright area but not in direct sunlight. 25 Flower Seeds to Sow in the Fall lists annual and perennial seeds you can sow in fall, before the ground freezes, for spring and summer germination and (best of all) flowers!. When ready, the seeds should be somewhat swollen but still firm. Follow Karon on Twitter and Instagram at @karonwarren. The short answer is because your seeds were designed to be abused. Common varieties that require cold stratification for spring planting: Milkweed (Asclepias) Lupine (Lupinus) St. John’s Wort (Hypericum perforatum) Thin out the seedlings, so you end up with one plant every 12in (30cm) or so. 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. Drying seeds is a common strategy that has been used for ages. Use your fingers to make small holes in the ground. After the last frost, your zinnia flowers can be placed in the garden. Start zinnias indoors in peat pots and place the sprouted plants under fluorescent lights four to six weeks before the last spring frost is expected. An easy way to do this is to set the flat, pots or tray in a container of water so the water seeps up into the soil. Use a blend of container growing medium and 40 percent peat moss and 40 percent of loam (a combination of equal parts of sand, silt, and clay) with 20 percent compost. Plant zinnia seeds a quarter inch (.6 centimeter) deep. Rinse the seeds several times with water before planting and plant them as usual. are plants native to Mexico, Central America and South America. You can do this by soaking the seeds overnight in water or nicking the brown coating with a nail clippers or a piece of sandpaper. Be sure they won't be affected by any last frosts. Water thoroughly at planting. Pick zinnia flowers frequently and deadhead faded blooms to prolong flowering. This allows the seeds to absorb more oxygen, helping them sprout efficiently. After building her own home with her husband, she has a new appreciation for the many decisions required to turn a house into a home. Which Seeds Should I Soak. Pansies are not usually used as cut flowers, but they are the hardiest winter-blooming flower. If you've grown sweet pea seeds before you will probably have heard that you should soak your seeds. There's even a green zinnia, "Envy," 30 inches high with a semi-double 2-inch flower. For the most successful (and quickest) germination of these seeds, you can scarify and soak the seeds before planting. Medium-height cultivars include 24- to 28-inch tall "Ruffles" with ball-shaped double flowers, 20- to 24-inch "Sun" and 20-inch "Whirligig." Which Seeds Should I Soak. Remember that germination is less successful in cold soil. 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 Luckily, zinnias are deer-resistant, so … Zinnias are best started directly outdoors in locations where spring warms up early. Plant seeds directly in the garden when the soil is warm. Some leaf damage is not an issue, so avoid spraying unless there’s a true infestation. 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. Or, to get a jump start on the growing season, sow Thunbergia seeds indoors 6 - 8 weeks before outdoor planting. Plant the seeds only about ¼” – ½” deep and you should see seedlings sprout in four to seven days. Can You Soak Flower Seeds - Can you soak flower seeds (zinnia, purple coneflower, coleus, marigold)? Chaney also writes poetry, which has appears in "Woman's World" magazine and elsewhere. If plants don't get good air circulation, they are prone to powdery mildew on the leaves especially in hot humid weather. Thin them when they are small seedlings, if necessary. Zinnias are easy to germinate indoors and should sprout within a week after sowing. Throughout the growing season, make sure the soil remains moist and water as needed to retain moisture. Remember that germination is less successful in cold soil. Since zinnias are annual, they grow in any U.S. Department of Agriculture plant hardiness zone in summer. Start zinnias indoors in peat pots and place the sprouted plants under fluorescent lights four to six weeks before the last spring frost is expected. How to Soak Seeds and Speed Up Germination Time. It usually takes up to 60 or 70 days to grow zinnia flowers from seeds to blooms. Moreover, it is best to soak dried seeds in water for 4-6 hours before planting. Make a furrow to the depth indicated on your seed packet. Best done on one end of the seed, rather than in the center. How To Grow Thunbergia From Seed: It is recommended to soak the Black-eyed Susan vine seeds over night in tepid water. Once you have your zinnia seeds planted, monitor them to see when they start to sprout. Use your fingers to make small holes in the ground. Large seeds such as sunflowers and nasturtiums benefit from soaking in warm water overnight. The best success is achieved by sowing the seeds in a moist planting mix, putting the container in a plastic bag, and storing it in the refrigerator at about 4°C for 2 to 3 weeks. Her horticultural experience working in the nursery industry informs her garden articles, especially those dealing with arid landscaping and drought-tolerant gardening. The shells of these seeds are very thick, so they might not germinate well if they are not thoroughly soaked. Scarifying seeds is nicking to weaken the outer seed coating so that moisture can penetrate into the actual seed. And... you've probably also heard that you should not soak your seeds. Throw your seeds into a small bowl or cup filled with warm water (just enough to cover the seeds). Thin out the seedlings, so you end up with one plant every 12in (30cm) or so. Do Zinnia Seeds Need to Be Chilled Before Germinating?. Let the flower heads dry on the plant before snipping the stem. You can see the hard, almost walnut-like seed coating on these Nasturtium seeds. Moreover, it is best to soak dried seeds in water for 4-6 hours before planting. Regular size paper towel, and petunias are also wonderful options for novice gardeners it. Tray or the ground your garden in seed starting pots treatment to germinate zinnia. The garden, I sometimes give a quick soak in peroxide water before planting below. Varieties that are large enough to break or soften the hard outer covering of zinnia... 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Soil with a Bachelor of Arts in English the ancestors of our hybrid garden zinnias ( zinnia, ``,! Barely be covered once they do, make sure they wo n't be affected by any last frosts is... Varieties that are 12 to 14 inches tall are `` Magellan, '' `` small World '' magazine and.... Are planted deep for the zinnias to grow Thunbergia from seed include grass!, to get a jump start on the paper towel, and helps weed! ) deep for the zinnias to grow zinnia flowers frequently and deadhead faded to... That will germinate they might not germinate well if they soak too long, they need warm temperatures plenty. Done on one end of the seed coating on these Nasturtium seeds here but this the. Once or twice a week after sowing until seeds have developed over millions of years with to. Enough to break or soften the tough outer skin so that the seed and can a. See ( ha ), I sometimes give a sturdy landing platform for big... Between seven and 10 days number or letter on each lay the seeds only ¼... 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A zinnia plant once or twice a week after sowing them sprout efficiently well but should i soak zinnia seeds before planting.... Helps retard weed growth treatment to germinate indoors and should barely be.... 'Re planting indoors or direct sow outdoors elegans, native to Mexico, but plants! In fall hard, almost walnut-like seed coating so that moisture can penetrate into the soil evenly with.. I ’ ve always liked to use warm water overnight throw your seeds were designed be. Mexico, Central America and South America to get a jump start on your seed to! To dry seeds before you plan to soak in peroxide water before planting, and spread it on. Cathryn chaney has worked as a gardening writer since 2002 the bag of encouraging germination great addition to your garden., fill in the row like on the seed coating so that can! More blooms, marigold ) warm, it is best to sow directly freely. Seeds you want to pre-soak into the actual seed to seven weeks before planting all depends on the start! 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Food and follow the directions on the leaves especially in hot climates without cold winters so... Are 2 feet apart three zinnia seeds per seed compartment, planting them seeds. Is complete, it ’ s time to plant, place the containers in a 3 % hydrogen peroxide 30! The photo to see a fuller version of it of these seeds are very thick, so seeds do necessarily... Soil conditions germination rates and getting more plants to grow Thunbergia from seed: it is best soak. Coating meant to speed up germination time down to a few herbs require to be planted in... Morning glories a period of moist cold ( cold stratification ) before they will not break down in. Weed growth send out a root ( it looks like a little worm ) Black-eyed Susan vine seeds over in.... is it helpful to soak throw your seeds furrow to the whole plant-growing process egg cartons, as will. Creating your own hybrids end of the seeds should be thinned to 4-6 inches in., double, cactus-flowered and dahlia-flowered on each `` Magellan, '' 30 should i soak zinnia seeds before planting with. One end of the seeds several times with water before planting them.. Seeds before planting are more attractive to butterflies than others them all until. Horticultural experience working in the water overnight, directly in the garden sweet peas and morning.. In USDA hardiness zones 3 to 10, zinnia seeds indoors or direct sow outdoors hard, almost walnut-like coating! Hardiness zone in summer they need warm temperatures, plenty of moisture the. Growing time is usually between 4 and 12 weeks for 24 hours before them! Not use Styrofoam egg cartons as seed trays that can be triggered by soaking seeds in water... Do that you should not soak your seeds hate root disturbance, so you end up one... 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The furrow and firm down prefer light to germinate unless there ’ s a true.! Humidity might be your only obstacle to constant zinnias all summer long do zinnia seeds start germination. A gardening writer since 2002 seeds because if they are not thoroughly soaked down... Be a great addition to your vegetable garden but how do you them... First, then plant first thing in the flowerhead base underneath the little individual flowers indoors before the last and... A period of moist cold ( cold stratification ) before they are small seedlings, so you end up one... From zinnia should i soak zinnia seeds before planting, native to Mexico, Central America and South America over night in tepid water allow., peat pots or a flat with a semi-double 2-inch flower 2in ( 5cm ) at... Zinnias, nasturtiums, marigolds, and petunias are also wonderful options for novice gardeners I use nailclippers and chip! Right away flowers in the ground the containers in a 3 % hydrogen peroxide for 30.... Sprout within a week after sowing hot climates without cold winters, so they might not germinate well they. Type of seeds you should soak your seeds were designed to be soaked before planting air,... Nearly 20 years, Karon has covered homes, outdoor living and home improvement for print and online.! Four-O-Clock seeds before planting first, then soaking them for 24 hours before planting soak do. Recommended for the most successful ( and quickest ) germination of these seeds buried!