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Get the seeds.Sow them 1/3 to 1/4 inch (0.6 to 1 cm) deep in a seed tray or pot that has a well-draining soilless mix.Keep the soil moist & place the pot in bright light.LocationCelosia loves the sun, & to ensure abundant flowers, it should be under the open sky with good air circulation. If growing indoors, it needs a sunny window. To grow celosia in a balcony, Southern or Western exposure is important, where it can receive at least 5-6 hours of direct sun.WateringAlthough the plant can tolerate short periods of drought, it grows much better when the soil remains slightly moist. While watering, remember not to overwater plants & wetting the leaves to avoid leaf spots, stem, & root rot, along with other fungal diseases.SoilCelosia plant thrives in most soil types, but it is better to use soil that is loamy, rich in organic matter, & drains well. The pH level of the soil required should be around 6 to 7.Ensure the soil temperature is above 64 F (18 C), but you can start them when the temperature is as low as 60 F (15 C).TemperatureEven though it’s a plant of warm areas, celosia can grow in both subtropics & warm temperate zones. It grows best as a perennial in areas where annual daytime temperatures are within the range of 68-86 F (20-30 C).The optimum seed germination temperature for growing celosia is around 64-86 F (18-30 C), ideally, around 77 F (25 C). The plant can tolerate a maximum of 104°F (40 C) & the lowest to 32 F (0 C) for a brief period without frost.FertilizerFertilize the plant using a liquid fertilizer with an NPK ratio of 15-30-15 or 10-10-10 once a month. When the plant starts to flower, increase the fertilization frequency to once every 2-4 weeks.MulchingOutdoor planted celosia will benefit a lot from a thick layer of organic mulch. It helps the plant to retain moisture for a longer time duration. Mulching also helps in preventing the growth of weeds.