How to Grow Ostrich Plume Century Series
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Ostrich Plume Century Series
Celosia argentea var. plumosa
flowerThe Ostrich Plume Century Series is a stunning celosia cultivar featuring large, feathery, plume-like flower heads in vibrant colors including red, pink, purple, yellow, and orange. These heat-loving annuals grow 24-30 inches tall and produce long-lasting blooms excellent for cutting and continuous summer color. They thrive in warm conditions and are relatively low-maintenance once established.
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Example Ostrich Plume Century Series timeline · Pittsburgh, PA (Zone 6b)
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Plant Ostrich Plume Century Series
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Ostrich Plume Century Series blooms
Around Jun 26≈ 70 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Ostrich Plume Century Series dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 2-11 as annuals; best performance in zones 5-10
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Seedling
2-3 weeksTiny seedlings emerge 7-14 days after sowing with small oval true leaves appearing after the initial cotyledons.
Provide bright light, maintain consistent moisture without waterlogging, and maintain temperature around 70-75°F. Thin seedlings to prevent crowding.
Vegetative Growth
3-4 weeksYoung plants develop multiple sets of true leaves and establish a bushy framework with deeper green foliage.
Gradually acclimate to outdoor conditions if starting indoors. Pinch the top when 3-4 inches tall to encourage branching. Maintain consistent moisture and fertilize bi-weekly with balanced fertilizer.
Flowering Initiation
2-3 weeksTerminal buds begin forming at stem tips; flower bud clusters become visible as distinctive elongated structures.
Ensure plants receive maximum sunlight. Begin weekly fertilization with lower nitrogen formula to encourage flowering. Maintain adequate water without overwatering.
Full Flowering
6-10 weeksLarge, feathery plume flowers fully open in brilliant colors; plants become full and spectacular displays of blooms.
Deadhead spent flowers to encourage continued blooming throughout season. Water consistently. Apply light fertilizer every 2 weeks. Protect from heavy rain if possible to prevent flower damage.
Seed Set (Optional)
4-6 weeksIf flowers are left unpruned, they fade and dry, developing seed pods within the flower head.
Allow a few flowers to fully dry on plant for seed collection. Let mature completely before harvesting seeds for next season.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with strong water stream, use insecticidal soap, or apply neem oil. Encourage beneficial insects like ladybugs.
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Increase humidity, spray with water, use neem oil, or apply miticide if severe. Avoid overhead watering which creates dust.
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Use yellow sticky traps, spray with insecticidal soap, or apply neem oil. Remove heavily infested leaves.
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Isolate infected plants, spray with rubbing alcohol on cotton swab, or use insecticidal soap.
Uses
Edible flower garnish
CulinaryCelosia flowers are edible and can be used as an ornamental garnish for salads, desserts, and cocktails. They add visual interest and a mild, slightly peppery flavor. [source]
Cut and dried floral arrangements
HouseholdThe feathery plumes are excellent for fresh flower arrangements and dry remarkably well, maintaining color and texture for months in dried arrangements and craft projects. [source]
Floral crafting and arrangements
CraftLong, sturdy stems and large plume flowers make them ideal for wedding arrangements, wreaths, corsages, and other craft projects. [source]
Summer garden color and landscape design
HouseholdThese vibrant plants provide continuous color from mid-summer until frost in mixed borders, beds, containers, and cottage gardens. [source]
Pollinator attraction
WildlifeCelosia flowers attract bees, butterflies, and other beneficial pollinators while providing nectar throughout the growing season. [source]
Harvest Tips
Cut flowers in early morning when fully open and fully hydrated for longest vase life (7-10 days). Cut stems at a 45-degree angle just above a leaf node. Remove lower leaves from cut stems. Change water every 2 days and recut stems. For dried arrangements, harvest when flowers are fully colored and air-dry in a warm, well-ventilated location for 2-3 weeks.
Fun Facts
- 🌱 The name 'celosia' comes from the Greek word 'kelos' meaning 'burned,' referring to the flame-like appearance of the flower heads.
- 🌱 Ostrich Plume varieties can reach heights of 30 inches or more, making them dramatic focal points in garden beds and excellent for cutting.
- 🌱 Celosia flowers can be dried while still retaining their vivid colors, making them popular for everlasting flower arrangements that can last for years.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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