key growing information

Growing Celosia From Seed

How to grow celosia from seed for beds or cut flowers: starting transplants, light for germination, pinching for more stems, spacing, harvest stage and drying.
By Hensley’s Seed Co.

Celosia - Key Growing Information

This fuzzy, neon-pink celosia bloom is of the cristata group, aka cockscomb.

DAYS TO GERMINATION:

Allow 8–14 days at 70–80°F (21–27°C). Water from below or mist gently so the seed and mix stay in place.

SOWING:

Starting transplants is recommended: sow into 72-cell flats or your usual containers 6–8 weeks before planting out. The seed needs light, so cover it just enough to keep it in place. Grow seedlings at 63–68°F (17–20°C), harden off, and plant out once frost is past. Direct sow only where the season is long, 1/8" deep after the last frost. Pinch plants to promote branching. Cool temperatures or days shorter than 12 hours can push plants into flowering too early.

LIGHT PREFERENCE:

Full sun.

PLANT HEIGHT:

Depends on variety.

PLANT SPACING:

6–12" apart.

HARDINESS ZONES:

Grown as an annual.

STEM LENGTH:

12–48", depending on variety.

VASE LIFE:

7–14 days; hold cut stems at 36–41°F (2–5°C).

HARVEST:

Celosia makes an outstanding cut flower, fresh or dried. For fresh use, cut once the blooms are fully formed and the stem feels firm just below the flower head. Cut at the same stage for drying, strip off all the leaves, and hang stems in a dark, airy place.

SOIL REQUIREMENTS:

Moist, fertile, well-drained soil rich in organic matter; pH 6.0–7.0 is best.

USES:

Top-quality fresh or dried cut flower; also for borders, beds and containers.
Note: Not every celosia species needs pinching, but it is still worthwhile for more stems and flowers of more even size, and it is especially important for C. cristata and C. plumosa. When plants reach 6–12", nip out the growing tip with your fingers or clean scissors.SCIENTIFIC NAME: Celosia spp.

ALTERNATE NAMES:

Cockscomb, crested cockscomb, wheat celosia, prince's feather, prince of Wales feather, red fox

Source and attribution

Migrated library resource. Original named people, organizations, research, and factual provenance are retained.