How to Grow Agastache 'Firebird'
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Agastache 'Firebird'
Agastache aurantiaca 'Firebird'
flowerAgastache 'Firebird' is a stunning ornamental herb featuring vibrant orange-red flower spikes that bloom from mid-summer through fall. This cultivar is a hybrid selection prized by pollinators and gardeners for its long blooming period, aromatic foliage, and striking color that adds warmth to garden borders and containers.
When should you plant Agastache 'Firebird' in your zone?
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Example Agastache 'Firebird' timeline · Pittsburgh, PA (Zone 6b)
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Plant Agastache 'Firebird'
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 Agastache 'Firebird' blooms
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Agastache 'Firebird' dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9, with extended season in zone 10
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Get my Agastache 'Firebird' timeline →Growth Stages
Seedling
3-4 weeksTiny serrated leaves emerge; plants develop multiple true leaves and establish root system
Keep soil consistently moist but not waterlogged. Provide bright light. Thin seedlings to 2-3 inches apart if direct sowing.
Vegetative
4-6 weeksPlant establishes bushy growth with aromatic lance-shaped leaves; stems become woody and sturdy
Pinch back growing tips at 6-8 inches to encourage bushier habit. Water moderately. No fertilizer needed if soil is amended.
Bud Formation & Early Flowering
2-3 weeksTerminal flower spikes form at stem tips; buds develop intense orange-red coloration
Ensure consistent moisture during bud set. Provide full sun for best color intensity. Remove any diseased foliage.
Full Flowering
8-12 weeks (mid-summer to first frost)Vibrant orange-red tubular flowers open sequentially along 3-4 inch spikes; blooms attract hummingbirds and bees
Deadhead spent flowers to extend bloom period. Water during dry spells. Monitor for pests.
Seed Set & Decline
4-6 weeksIf not deadheaded, flowers develop seed heads; foliage may fade in late fall before dormancy
Leave some flower heads for self-seeding and winter interest. Cut back dead stems in early spring. In cold zones, mulch around base.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove affected leaves; improve air circulation; avoid overhead watering; apply sulfur spray if severe
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Ensure good air circulation; apply neem oil or sulfur fungicide; avoid wetting foliage
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Increase humidity with water spray; use neem oil; ensure adequate watering during heat stress
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Spray with insecticidal soap; remove heavily infested leaves; introduce beneficial predatory insects
Uses
Herbal Tea & Infusions
CulinaryAgastache leaves make a refreshing anise-flavored tea with a subtle mint undertone. Both leaves and flowers can be dried or used fresh in hot water for a caffeine-free beverage with mild digestive benefits. [source]
Garnish & Edible Flowers
CulinaryThe vibrant flowers are edible and attractive for garnishing salads, desserts, and beverages. They add a subtle anise-licorice flavor and visual drama to culinary presentations. [source]
Pollinator Magnet
WildlifeAgastache 'Firebird' is beloved by hummingbirds, honeybees, and native bees. The long bloom period provides critical nectar and pollen throughout mid-summer and fall migration seasons. [source]
Traditional Herbal Remedy
MedicinalTraditionally used in folk medicine for digestive support and sore throat relief. Contains compounds that may have mild antimicrobial and anti-inflammatory properties, though scientific evidence is limited. [source]
Cut & Dried Flowers
CraftThe striking orange-red flower spikes retain color and form beautifully when dried, making them excellent for dried flower arrangements, wreaths, and botanical crafts lasting months or years. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
For fresh use or arrangements, cut spikes in early morning when flowers are fully open. For dried flowers, cut stems when most florets are open but before full fade. Hang upside down in a warm, dry, dark location for 1-2 weeks. For seed collection, allow flowers to fully mature on plant, then cut seed heads when brown and dry. Store seeds in cool, dry conditions.
Fun Facts
- 🌱 Agastache 'Firebird' is a hybrid cultivar bred from Agastache aurantiaca and potentially other Agastache species, selected specifically for its intense orange-red coloration and vigor in garden settings.
- 🌱 The name 'Agastache' comes from Greek words meaning 'much' (aga) and 'ear of grain' (stachys), referring to the abundant flower spikes, while the aromatic foliage contains limonene and other volatile oils similar to anise and hyssop.
- 🌱 This cultivar is more reliably perennial in zones 6-9 than some other Agastache species; in colder zones, it often self-seeds freely, creating new plants from dropped seeds in spring.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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