Celosia belongs to the amaranth family. Garden cultivars fall into three broad flower forms: feathery plumes, narrow wheat-like spikes, and folded cockscombs that look rather like colourful brains.
- Celosia likes full sun, summer warmth, and well-drained soil. Wait until the soil is warmer than about 13°C (55°F) before planting outdoors.
- Start from seed or young plants. Follow the cultivar's label for spacing because plants range from short bedding forms to 3-foot (90 cm) stems.
- Water at soil level when the surface begins to dry. Avoid constantly wet roots and crowded, damp foliage.
- Tall or heavy cockscomb cultivars may need a stake.
- Cut flower stems are long-lasting. To dry them, harvest before the heads are weather-damaged and hang small bundles in a dark, dry, ventilated place.
Some celosia species and young leaves are eaten in particular cuisines, but an ornamental label does not prove that a plant—or anything sprayed on it—is suitable food. Do not taste garden celosia without an informed adult's positive identification.