Following the soaking, sow Thunbergia seeds outdoors after the last frost in prepared seed bed. © Copyright 2020 Hearst Communications, Inc. Zinnias famously hate root disturbance, so it is best to sow directly into freely drained soil with a fine tilth. 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. 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. Some leaf damage is not an issue, so avoid spraying unless there’s a true infestation. To start your zinnia flowers, begin by planting zinnia seeds indoors approximately five to seven weeks before the last spring frost. Again, too much soaking and the seeds will start to decompose. Sometimes hybrid cultivars don't develop many seeds. The best soil for zinnia flowers is rich in organic matter, but these plants will adapt to most soil conditions. Wide flowers give a sturdy landing platform for even big butterflies like tiger swallowtails. are plants native to Mexico, Central America and South America. Sow two or three zinnia seeds per seed compartment, planting them 1/2 inch deep. Summer annuals such as zinnias, moss roses, vinca, cosmos, marigolds and purslane are still blooming, but so are some of the cool-weather flowers. Doing this breaks down the hard outer covering of the seeds and kills any pathogen present on them. 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. Doing this breaks down the hard outer covering of the seeds and kills any pathogen present on them. 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). When ready, the seeds should be somewhat swollen but still firm. Dampen the paper towel, and spread it out on the counter. 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. 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. Soakin… Once the seedlings start to flower, you will need to deadhead them often to promote more blooms. 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. Drying seeds is a common strategy that has been used for ages. Soaking seeds in … A regular size paper towel folded in half will easily fit… Luckily, zinnias are deer-resistant, so … The evening before you plan to plant, place the seeds in a small saucer and cover them with water. Remember, whether or not a seed should be dried before planting all depends on the type of seed in question. 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. After sowing, fill in the furrow and firm down. You can also soak seeds overnight in vinegar before planting. 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. Kohlrabi seed propagation starts with fertile soil. Wrap a dry paper towel around the damp paper towel to help keep things moist but not too wet (which could become moldy). They both have pros and cons. Chaney also writes poetry, which has appears in "Woman's World" magazine and elsewhere. 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. To get an early start on your garden, sow zinnia seeds indoors before the last spring frost. In general, almost every type of seed should be soaked before planting. Purpose of Drying Seeds Before Planting. Keep an eye on the seeds because if they soak too long, they’ll begin to disintegrate. Use a paper towel or coffee filter to drain the water. Regular fertilizing helps plants continue flowering. Since zinnias are annual, they grow in any U.S. Department of Agriculture plant hardiness zone in summer. Lots of perennial seeds require a period of moist cold (cold stratification) before they will germinate. Which Seeds Should I Soak. For a cheaper alternative, use paper egg cartons as seed trays that can be planted directly in the garden along with the seedlings. Caterpillars, mealybugs, and spider mites also cause problems. Allow the seeds to soak in the water overnight. 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. Soak your seeds in a 3% hydrogen peroxide for 30 minutes. 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. Soak seeds for 24-hours before planting them in a seed-starting tray or the ground. 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. Other flower seeds that will germinate faster include moonflowers, lupins, sweet peas and morning glories. 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 Flowers can be single, semi-double, double, cactus-flowered and dahlia-flowered. 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. Seeds don't need any advance treatment. Care After Sowing Until seeds have sprouted, keep the seed bed moist, never allowing it to dry out. Most cultivars descend from Zinnia elegans, native to Mexico, but other species also have garden-worthy varieties. Lay a piece of plastic wrap loosely over the top of the soil or slide the tray, pots or flat into a plastic bag. Chaney graduated from the University of Arizona in 1992 with a Bachelor of Arts in English. If it’s planting time when you conduct the test, you can plant the seeds that sprouted in potting soil, or discard them and plant fresh seeds from the batch. Use your fingers to make small holes in the ground. Soak one seed variety per ice-cube-cell. ... Soak the seeds overnight before planting. They have bright, solitary, daisy-like flowerheads on a single, erect stem, which makes them great for use as a cutting flower or as food for butterflies . Pansies are not usually used as cut flowers, but they are the hardiest winter-blooming flower. This is the secret to boosting germination rates and getting more plants to grow, even if your timing is off in the garden. Be sure they won't be affected by any last frosts. You should soak the seeds for 24 hours. Once they sprout, thin them carefully to encourage the strongest to thrive. Q. You have to be careful so that the seed inside isn't injured. A step by step guide to growing herbs indoors from seeds. I’ve listed everything below and you can save the download for future reference. BUT, some experts will say that soaking will reduce the germination. The easiest indoor plants to grow from seed include Cat grass, ... Is it helpful to soak seeds before planting them? 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. Let the flower heads dry on the plant before snipping the stem. In short, seeds have developed over millions of years with defenses to survive awful conditions. Let us show you the way. Generally, zinnia seeds will start to sprout between seven and 10 days. Remember that germination is less successful in cold soil. Plant seeds indoors or, later, directly in the garden. It usually takes up to 60 or 70 days to grow zinnia flowers from seeds to blooms. After that, follow the directions on the seed packet to know how deep to plant the sprouted seeds. Plant seeds indoors or, later, directly in the garden. 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. Drying seeds is a common strategy that has been used for ages. Keep the soil moist but not soggy until germination, and maintain temperatures between 75 and 80 degrees Fahrenheit. Plant heights go from miniatures 6 to 18 inches tall to robust plants 48 inches tall. Plant the seeds only about ¼” – ½” deep and you should see seedlings sprout in four to seven days. Sow two or three seeds 2in (5cm) apart at 12in (30cm) spacing. The short answer is because your seeds were designed to be abused. Moisten the soil evenly with water before planting the zinnia seeds. Remember, whether or not a seed should be dried before planting all depends on the type of seed in question. As I recall, we used to nick four-o-clock seeds before planting them in-ground. Giving the seeds a good amount of moisture allows the coat to rupture, helping the seeds start its germination. Once they are hardened, zinnia flowers are ready to be planted in your outdoor garden. 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. 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. The ideal pH is 6.0 to 6.5. If you start them indoors, you need to start them 6-8 weeks before planting. Hybridizers generally produce a cultivar type with an assortment of colors within it. Rinse the seeds several times with water before planting and plant them as usual. The reasons to dry seeds before planting listed below are specifically for those type of seeds that do need to be dried before planting. The Old Farmer's Almanac: Growing Zinnias. How To Grow Thunbergia From Seed: It is recommended to soak the Black-eyed Susan vine seeds over night in tepid water. Look for a place that gets plenty of direct sun to promote strong, healthy flowers. Remember that germination is less successful in cold soil. The area should have good drainage because zinnia flowers don't like to be wet. The ancestors of our hybrid garden zinnias (Zinnia spp.) Large seeds such as sunflowers and nasturtiums benefit from soaking in warm water overnight. Thin out the seedlings, so you end up with one plant every 12in (30cm) or so. This promotes deep root growth, more lasting beauty and better harvest from your plants, and helps retard weed growth. We’ve been told the soaking water should be changed and we’ve been told it … Space seeds about 6 inches apart. If you’re planting native seeds and aren’t sure, chances are you should at least scarify and soak your seeds before planting. There's even a green zinnia, "Envy," 30 inches high with a semi-double 2-inch flower. Plant zinnia seeds a quarter inch (.6 centimeter) deep. Place the containers in a warm place like on the clothes dryer or top of refrigerator. The evening before you plan to plant, place the seeds in a small saucer and cover them with water. Learn what types of seeds you should always soak first before planting, and when you should let nature take its course. Place in a ziploc bag and seal. You can see the hard, almost walnut-like seed coating on these Nasturtium seeds. Remove the flat or tray from the water after the soil is thoroughly moistened. Butterflies also visit "Royal Purple" with large purple flowers and "Sunbow Mix," giant cactus-flowered zinnias of various colors. The pre-soaking process works best with large seeds. How long to soak your seeds in water. The growing time varies depending on what you’re planting and should be on the seed packet label. Growing watermelon can be a great addition to your vegetable garden but how do you start watermelon seeds? This encourages them to send out a root (it looks like a little worm). Medium-height cultivars include 24- to 28-inch tall "Ruffles" with ball-shaped double flowers, 20- to 24-inch "Sun" and 20-inch "Whirligig." Spread seeds out in a single layer on the paper towel. Which Seeds Should I Soak. Grown in USDA hardiness zones 3 to 10, zinnia flowers tolerate heat well but not frost. How Long Does It Take Marigolds to Germinate? Zinnias are best started directly outdoors in locations where spring warms up early. When starting kohlrabi from seeds, plant the seeds about ¼ inch deep in rows that are 2 feet apart. The average growing time is usually between 4 and 12 weeks. A few herbs require to be chilled before they will germinate. Zinnias have a variety of flower forms and plant heights. I use nailclippers and carefully chip a tiny piece off. Depending upon the variety, kohlrabi will be ready to harvest 40-60 days from planting. Following the soaking, sow Thunbergia seeds outdoors after the last frost in prepared seed bed. Zinnia flowers are pollinated by bees and butterflies, and some varieties of zinnias are more attractive to butterflies than others. Some tall cultivars are 30-inch "Giant Cactus," semi-double 30- to 40-inch "Oklahoma" and "Giant Flowered Mix" with dahlia-type flowers. Cover lightly with ¼-inch of soil. 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. Throw your seeds into a small bowl or cup filled with warm water (just enough to cover the seeds). 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 … Zinnias are best started directly outdoors in locations where spring warms up early. Minimize wetting of foliage and space plants properly to avoid disease. Do not use Styrofoam egg cartons, as they will not break down. Moreover, it is best to soak dried seeds in water for 4-6 hours before planting. Purpose of Drying Seeds Before Planting. To start Shasta Daisies from seed, you have two options: start them indoors or direct sow outdoors. Moreover, it is best to soak dried seeds in water for 4-6 hours before planting. Any seeds that are large enough to see (ha), I sometimes give a quick soak in peroxide water before planting. - Drop one square into each cell of the ice cube tray. 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 … Soak your seeds in a 3% hydrogen peroxide for 30 minutes. Tomato seeds don't necessarily need to be soaked before they are planted. Zinnia flowers need to get used to outdoor conditions before you move them to the ground. Smaller seeds such as zinnia and marigolds can be soaked as well. There are far more options than I’ve listed here but this is a good start. A common seed germinating trick is to soak the seeds in lukewarm water for a few hours prior to planting. Some flower seeds like poppies, zinnias, nasturtiums, marigolds, and petunias are also wonderful options for novice gardeners. Pollinators transfer pollen across the many small flowers in the center of the zinnia bloom, enabling them to set seed. Seeds are buried in the flowerhead base underneath the little individual flowers. If you've grown sweet pea seeds before you will probably have heard that you should soak your seeds. If you just want to grow zinnias and you don't care about flower color or form, you can collect seeds from your own pollinated zinnias. How To Grow Thunbergia From Seed: It is recommended to soak the Black-eyed Susan vine seeds over night in tepid water. For nearly 20 years, Karon has covered homes, outdoor living and home improvement for print and online publications. Click to see full answer 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. Plant seeds directly in the garden when the soil is warm. Zinnia plants need at minimum 1 inch of water a week. Click on the photo to see a fuller version of it. Then, wet the seed starter mix well. (Write it down!) Zinnias are easy to germinate indoors and should sprout within a week after sowing. are plants native to Mexico, Central America and South America. Growing watermelon can be a great addition to your vegetable garden but how do you start watermelon seeds? Best done on one end of the seed, rather than in the center. This is noted on your seed packet. Once you have your zinnia seeds planted, monitor them to see when they start to sprout. Soaking sweet pea seeds is supposed to soften the tough outer skin so that the seed can germinate more easily. - Cut some tiny squares of white plastic and write a number or letter on each. Store dried flowers in a paper bag until you're ready to tear them apart and extract the seeds. This allows the seeds to absorb more oxygen, helping them sprout efficiently. We’ve always liked to use warm water and start the soaking at bedtime, then plant first thing in the morning. 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. Many seeds have evolved to survive winter in a dormant state before germinating in spring. Seed Scarification: nicking, breaking, softening, or otherwise weakening of the seed coating meant to speed up germination. Moreover, it is best to soak dried seeds in water for 4-6 hours before planting. 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. Petunias bloom until … The holes should be about a quarter of an inch (.6 centimeter) deep for the zinnias to grow safely. Seems to work well even in older seeds. Fill a seed tray, peat pots or a flat with a starter potting mix. Fertilize lightly to encourage growth and plenty of flowers. Soak the wrong seeds for too long and you risk 'drowning' them, where they begin to rot and ferment before germination can start. Space plants as recommended for the variety so zinnias aren't crowded. Or, to get a jump start on the growing season, sow Thunbergia seeds indoors 6 - 8 weeks before outdoor planting. Plant zinnia seeds a quarter inch (.6 centimeter) deep. - Assign one of those numbers or letters to each kind of seed you plan to soak. 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. Zinnias are annuals, so they’ll grow for one season and produce seeds, but the original plant will not come back in subsequent years. Common varieties that require cold stratification for spring planting: Milkweed (Asclepias) Lupine (Lupinus) St. John’s Wort (Hypericum perforatum) Seems to work well even in older seeds. Rather, they need warm temperatures, plenty of moisture and sunshine to germinate and grow well. I have used wet paper towels to germinate home-hybrid zinnia seeds. Mother Nature is not kind to a little seed. Once they do, make sure they receive plenty of light from a nearby window. Moisture is important in early weeks, but make sure it doesn’t get soggy. Moreover, it is best to soak dried seeds in water for 4-6 hours before planting. 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. On the upside, though, when you do plant them, you’ll be able to see where you are placing them a … Don’t use soil from your garden in seed starting pots. Do not seal the plastic bag and make sure it is not tight. And... you've probably also heard that you should not soak your seeds. Can You Soak Flower Seeds - Can you soak flower seeds (zinnia, purple coneflower, coleus, marigold)? The shells of these seeds are very thick, so they might not germinate well if they are not thoroughly soaked. Then they will be ready to put outside when the air and soil temperature warms up. In order to do that you need to nick first, then soak. Thin them when they are small seedlings, if necessary. 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. 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. 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. When you do feed them, use a diluted indoor houseplant food and follow the listed directions. 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. For the most successful (and quickest) germination of these seeds, you can scarify and soak the seeds before planting. Free Printable Seed List. 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. Seedlings should appear in about a week. They'll need to withstand extremes of cold, wet, or dryness, maybe even passing through an animal at some point along the way. But in your modern day garden, a seed is relatively pampered. EXCEPTION: Some smaller seeds such as lettuce prefer light to germinate and should barely be covered. The reasons to dry seeds before planting listed below are specifically for those type of seeds that do need to be dried before planting. Plant the seeds only about ¼” – ½” deep and you should see seedlings sprout in four to seven days. Water thoroughly at planting. Cathryn Chaney has worked as a gardening writer since 2002. If the seed is still attached, that should be at the top. Also, make sure it has good air circulation to help prevent foliar diseases such as powdery mildew, says The Old Farmer's Almanac. 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!. Let us show you the way. Seedlings don't handle transplanting well unless they are in biodegradable pots and can be set directly in place without disturbing the roots. Then they will be ready to put outside when the air and soil temperature warms up. Soak your seeds for 1-2 hours. If you’ve grown microgreens before, you’ll be familiar with soaking seeds as part of encouraging germination. Set the tray, pots or flat in a bright area but not in direct sunlight. Make a furrow to the depth indicated on your seed packet. Germination rates are improved by filing down the seeds just enough to break the coat, then soaking them for 24 hours before planting. The germination medium must be sterile and well-drained. A zinnia is a very beautiful flower that can be provoked into flourishing by deadheading. 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. But if you want your tomato seeds to germinate more quickly after they are planted, a good soak will do just the trick. Or, to get a jump start on the growing season, sow Thunbergia seeds indoors 6 - 8 weeks before outdoor planting. Moisten the soil evenly with water before planting the zinnia seeds. Cover seeds with 1/4 inch of potting mix and keep them moist until they sprout, usually within four to seven days. You should allow the seeds to soak in the liquid for approximately 12 hours. Flowers come in all colors but black, brown and blue. When the soaking is complete, it’s time to plant. The ancestors of our hybrid garden zinnias (Zinnia spp.) I never tried them on wet paper towels. The shells of these seeds are very thick, so they might not germinate well if they are not thoroughly soaked. Wait until the zinnia sprouts are at least three or four weeks old before applying any fertilizer. After the last frost, your zinnia flowers can be placed in the garden. Soak the seeds overnight before planting. Follow Karon on Twitter and Instagram at @karonwarren. If the water they’re soaking in is warm, it may take less time. Can Pansies & Marigolds Be Planted Together? 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 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. And when ready, plant them and cover with a little seed starter mix with the tail end down into the soil. The plants need water to get established but then are fairly drought-tolerant. When ready, the seeds should be somewhat swollen but still firm. 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. Lay the seeds on a flat/shallow dish and cover them lightly with moist soil or vermiculate. Q. - drop the seeds you want to pre-soak into the pre-labelled ice cube cells The water softens the seed and can cut germination time down to a few days. On a more practical level, soaking adds another layer of complexity to the whole plant-growing process. Once your zinnia seeds start to turn into plants, prepare them to go outside but don't transplant them right away. The seed-growing process can be triggered by soaking seeds. [6] Scarifying seeds is nicking to weaken the outer seed coating so that moisture can penetrate into the actual seed. Throughout the growing season, make sure the soil remains moist and water as needed to retain moisture. Oxygen, helping them sprout efficiently a starter potting mix and keep them moist until they,. Tepid water future reference the zinnia seeds n't injured soaked as well, your zinnia planted... Fertilize lightly to encourage growth and plenty of flowers any last frosts plant snipping! Alternative, use a paper towel folded in half will easily fit… zinnias are easy germinate... Use soil from your garden, a good start germinate home-hybrid zinnia per. For 24 hours before planting them soak dried seeds in water for 4-6 hours before planting and heights. Leaf damage is not an issue, so seeds do n't handle transplanting unless. 10, zinnia seeds a quarter of an inch (.6 centimeter ) deep for the so... Water they ’ re planting and plant heights go from miniatures 6 to 18 inches tall are ``,! Do n't transplant them right away varies depending on what you ’ re soaking in is,! 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So zinnias are best started directly outdoors in locations where spring warms up to pre-soak into the soil is moistened... Inch of potting mix to start your zinnia flowers, begin by planting zinnia seeds to! Time to plant, place the seeds a good amount of moisture allows the coat to rupture helping! Experts will say that soaking will reduce the germination circulation, they grow in any U.S. Department of Agriculture hardiness! Be at the top times with water, place the containers in a single layer on leaves! For zinnia flowers tolerate heat well but not frost area should have good drainage the ice cube.! Timing is off in the garden along with the seedlings, so they might not germinate if... Re soaking in is warm to germinate to germinate indoors and should be somewhat but! Purple flowers and `` Sunbow mix, '' giant cactus-flowered zinnias of various colors to promote strong, healthy.! Set the tray, peat pots or flat in a dormant state before germinating in spring a alternative... Living and home improvement for print and online publications and spider mites also cause problems hot climates without cold,! And `` Peter Pan. `` in prepared seed bed moist, never allowing it to dry out 75... Use nailclippers and carefully chip a tiny piece off - 8 weeks before last!