Celosia is a genus of flowering plants in the amaranth family. The most recognizable species of celosia are known for their vibrantly colored, bristly, conical flowers, which have earned them nicknames like “flamingo cockscomb” and “woolflower.” Celosias are highly-resilient, low-maintenance plants that require little in the way of care, which makes them perfect for less experienced gardeners. To grow Celosia, just designate a spot for your plant in an area where it can receive full or partial sunlight, make sure it stays nice and warm, and mist it daily with just enough water to keep the surrounding soil slightly damp. Keep reading for more celosia plant care tips.
Steps
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Plant or pot your celosia in soil with excellent drainage. Though celosias prefer the warm, sunny conditions of the outdoors, they’ll do just as well in a pot, planter, or urn, provided the soil around them stays nice and dry. Sandy and loamy soil types are ideal for flowers with low-moisture needs like celosias. [1] X Research source
- If you don’t have a suitable soil in your growing site, or if you’re unsure about the drainage properties of your store-bought potting soil, try mixing in an organic amendment material like azomite, blood meal, or compost. [2] X Research source
- Inorganic amendments like sand, gravel, and perlite can also bring down the overall amount of moisture in your soil.
Tip: When selecting a container for a potted plant, check to make sure that it has multiple drainage holes on the bottom. Otherwise, water could accumulate around the roots, eventually drowning them out.
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Situate your celosia where it can receive full or partial sunlight. Plant outdoor plants in places that are unobstructed by trees, houses, or other sources of shade. Position indoor plants in a south-facing window or another spot where they can get at least 8 hours of sun per day. [3] X Research source
- If you live in an area that gets cold and dark during the fall and winter months, a grow lamp can help keep your celosia alive until things begin to warm back up. You can buy a grow lamp for as little as $20 online or at any greenhouse or gardening center. [4] X Research source
- Celosias may not be the best choice of plant to grow in shady areas like valleys. They may also struggle in gardens or beds that run along the north side of the house or near a dim treeline.
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Keep your celosia as warm as possible. Celosias are native to tropical regions, which means they thrive in the heat. You’ll have the most success cultivating celosia outdoors if you live in a growing zone between 9 and 11. When raising the plant indoors, set your thermostat no lower than 64 °F (18 °C) to make sure it stays comfortable, though 70 °F (21 °C) or higher is preferable. [5] X Research source
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Spread 2–4 in (5.1–10.2 cm) of mulch around outdoor plants. If you’re cultivating your celosia in a cooler climate, it will likely benefit from an occasional mulching. A thick layer of mulch will help insulate the plant’s root system, slow moisture loss, and stabilize taller plants against strong winds and heavy precipitation. [8] X Research source
- Choose an organic type of mulch, such as leaf compost or shredded wood products. These will supply your celosia with additional nutrients without leaching precious nitrogen from the soil. [9] X Research source
- Mulching is also a good way to keep pesky weeds at bay.
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Mist the soil around your celosia with water once or twice a day. Spritz the lower part of the plant with warm or room-temperature water, and repeat as often as needed to keep the soil slightly moist. To avoid overwatering or leaving your celosia vulnerable to mildew and other moisture-related diseases, focus the spray on the leaves and soil rather than the flowers themselves. [10] X Research source
- Water outdoor plants early in the day when there’s still plenty of time for excess moisture to evaporate.
- It's generally safe to forego watering altogether on days when the forecast calls for rain.
Warning: Overwatering your celosia can cause it to wilt or take on a sickly, sagging appearance. Celosias can even die if they stay too wet for too long. [11] X Research source
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Use a source of diffuse moisture to avoid overwatering indoor plants. Run a humidifier next to your celosia for 1-2 hours per day. Alternatively, set the pot or planter inside a shallow tray of water wherever you decide to display it. This will allow your celosia to absorb as much moisture as it needs from the surrounding environment without accidentally taking in more than is good for it. [12] X Research source
- Another option is to station your celosia next to the sink in your kitchen or bathroom, or another place where water regularly flows.
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Fertilize your celosia with a nitrogen-rich fertilizer roughly once a month. Every 3-4 weeks, give your plant a small amount of concentrated liquid fertilizer. A good fertilizer will introduce vital nutrients to the soil, which in turn will improve its health, protect it against adverse conditions, and even extend its blooming period. [13] X Research source
- To keep your celosia thriving, look for a fertilizer with a nitrogen ratio of around 3:1:2. [14] X Research source
- Increase the frequency of your applications to once every 2 weeks once the plant begins to bloom. It will require more nutrients during its prime growing phase.
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Deadhead your celosia when the blooms begin to fade if desired. Near the end of the summer growing season, check your celosia for dead blooms, which will usually appear dry, brittle, and discolored. Since celosias are such rugged plants, these old blooms won’t fall off on their own. To remove them, you’ll need to either snip the spent blooms 1 ⁄ 2 inch (1.3 cm) down the stem using a pair of sharp gardening shears or scissors, or pinch them off carefully by hand. [15] X Research source
- It’s not strictly necessary to worry about pruning or trimming celosias. However, some gardeners like to remove dead blooms in order to make room for new growth and keep their plants looking their best.
Tip: Gather up any healthy seeds that are still inside the dead blooms and place them in a plastic bag if you think you might want to propagate or share your celosia later. [16] X Research source
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Transplant seedlings after the final frost of the season. If you’ve started your celosia from seeds indoors and decide you want to move it outside, it’s best to wait until the weather starts to warm up. Planting it in the spring will help kickstart its early growing cycle improve its chances of survival. [17] X Research source
- Let your seedlings overwinter indoors until they stand approximately 4 inches (10 cm) tall, or the temperature outside is consistently above 55–60 °F (13–16 °C). [18] X Research source
- Take care not to disturb your celosia’s roots during the replanting process. They’ll be extra sensitive to changes in light, moisture, and temperature, especially while they’re still growing.
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Allow outdoor celosias to reseed on their own if you want to propagate them. One of the neatest things about celosias is that they drop seeds continually, producing wave after wave of beautiful flowers without the need for you to lift a finger. Just let them do their thing and they’ll keep coming back until the growing season draws to a close! [19] X Research source
- Celosias are annuals in most parts of the world, so you can expect outdoor plants to begin dying off late in the fall and make their return come spring.
- If you want to prevent your celosia from reseeding, it will be necessary for you to snip off the aging blooms before they have a chance to shed their seeds. [20] X Research source
Expert Q&A
Video
Tips
- Pests are a rare sight on celosias. Still, it’s a good idea to inspect your plant periodically for aphids, mites, and other unwanted intruders. If you happen to find any, wipe the leaves clean with a mild soap solution, blast them away with a thin stream of water, or simply brush them off by hand. [21] X Research sourceThanks
- Those bright, bushy flowers that celosias are famous for are actually edible. If you enjoy experimenting in the kitchen, consider clipping a few blooms while they’re at their peak and incorporating them into salads, stews, stir-frys, smoothies, or other recipes.Thanks
- Bold, fiery celosia blooms can make an eye-catching addition to a summertime floral arrangement or centerpiece.Thanks
Things You’ll Need
Creating the Right Environment
- Well-drained soil
- Organic mulch
- Large container with multiple drainage holes (optional)
- Organic or inorganic soil amendments (optional)
- Grow lamp (optional)
- Space heater or heat lamp (optional)
Watering and Feeding Your Celosia
- Warm or room-temperature water
- Spray bottle
- Nitrogen-rich liquid fertilizer
- Humidifier (optional)
- Shallow tray filled with water (optional)
Maintaining and Propagating Celosia
- Gardening shears or scissors
- Small hand trowel (for transplanting seedlings)
- Plastic bag (optional—for harvesting seeds)
Expert Interview
Thanks for reading our article! If you’d like to learn more about gardening, check out our in-depth interview with Gus Briones .
References
- ↑ https://gardenerspath.com/plants/annuals/celosia/
- ↑ https://plantcaretoday.com/celosia-plant-care.html
- ↑ https://plantcaretoday.com/celosia-plant-care.html
- ↑ https://www.chicagotribune.com/consumer-reviews/sns-bestreviews-lawn-the-best-led-grow-light-20190830-story.html
- ↑ https://balconygardenweb.com/how-to-grow-celosia-growing-and-planting-guide/
- ↑ https://getbusygardening.com/keeping-houseplants-happy-during-winter/
- ↑ https://plantcaretoday.com/celosia-plant-care.html
- ↑ https://balconygardenweb.com/celosia-flower-care-cockscomb/
- ↑ https://hoosierhomemade.com/how-to-choose-and-apply-mulch-to-your-flower-beds/
- ↑ https://www.bhg.com/gardening/plant-dictionary/annual/celosia/
- ↑ https://gardenerspath.com/plants/annuals/celosia/
- ↑ https://balconygardenweb.com/celosia-flower-care-cockscomb/
- ↑ https://balconygardenweb.com/celosia-flower-care-cockscomb/
- ↑ https://www.bobvila.com/articles/types-of-fertilizer/
- ↑ https://www.bhg.com/gardening/plant-dictionary/annual/celosia/
- ↑ https://www.gardeningchannel.com/growing-celosia-cockscomb-flowers/
- ↑ https://plantcaretoday.com/celosia-plant-care.html
- ↑ https://www.gardeningchannel.com/growing-celosia-cockscomb-flowers/
- ↑ https://plantcaretoday.com/celosia-plant-care.html
- ↑ https://gardenerspath.com/plants/annuals/celosia/
- ↑ https://www.almanac.com/pest/aphids