How to Grow Cinnamon Cassia
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Cinnamon Cassia
Cinnamomum aromaticum
treeCinnamon Cassia is a tropical evergreen tree native to Indonesia that produces the spice commonly sold as cinnamon in supermarkets. It grows 30-40 feet tall with aromatic bark that is harvested, dried, and used as a culinary spice. The tree also produces small flowers and berries, and is valued for its warm, sweet fragrance.
When should you plant Cinnamon Cassia in your zone?
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Example Cinnamon Cassia timeline · Pittsburgh, PA (Zone 6b)
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Plant Cinnamon Cassia
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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Harvest Cinnamon Cassia
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Cinnamon Cassia dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in USDA zones 10b-11; requires tropical to subtropical climates with no frost tolerance
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Get my Cinnamon Cassia timeline →Growth Stages
Germination & Seedling
4-6 weeksSeeds germinate within 3-4 weeks; seedlings develop 2-4 small oval leaves and establish initial root system
Keep soil warm (70-80°F) and consistently moist. Provide bright indirect light. Thin seedlings to strongest individuals.
Juvenile Growth
2-4 yearsYoung tree develops branching structure and characteristic glossy, lance-shaped leaves; stems thicken gradually
Maintain consistent moisture and warmth. Apply balanced fertilizer monthly. Prune to encourage branching. Protect from strong winds.
Establishment & Canopy Development
3-6 yearsTree grows rapidly, establishing main trunk and spreading canopy; height increases 1-2 feet annually under optimal conditions
Continue balanced fertilization during growing season. Mulch around base to retain moisture and regulate soil temperature. Remove competing lower branches.
Flowering & Fruiting
Ongoing after maturitySmall greenish-white flowers appear in clusters; followed by small dark berries; aromatic compounds concentrate in bark
Mature trees (7+ years) produce flowers and fruit. Allow flowering to proceed naturally. This indicates readiness for bark harvesting.
Harvest Readiness
Ongoing production cyclesBark becomes mature and fragrant with optimal quill structure; typically 7-10 years after planting
Trees must be at least 7 years old with bark diameter of 2+ inches. Plan for coppicing (cutting shoots for regrowth) after harvest.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove affected branches; maintain tree vigor through proper watering and nutrition; use neem oil for severe infestations; avoid wounding bark
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Prune affected branches; spray horticultural oil or insecticidal soap; encourage natural predators
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Increase humidity through misting; spray with water to dislodge; use neem oil if infestation persists
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Remove infected leaves; improve air circulation; avoid overhead watering; apply fungicide if severe
Uses
Spice & Flavoring
CulinaryDried and ground cinnamon bark is used as a warm spice in sweet and savory dishes, baked goods, beverages, and curries. Cinnamon Cassia has a sweeter, slightly earthier flavor than Ceylon cinnamon. [source]
Blood Sugar & Metabolic Support
MedicinalTraditional and modern studies suggest cinnamon may help regulate blood glucose levels and improve insulin sensitivity. Often used in herbal preparations and supplements. [source]
Anti-inflammatory & Antioxidant
MedicinalContains compounds with antioxidant and anti-inflammatory properties traditionally used in Ayurvedic and Chinese medicine for digestive and circulatory health. [source]
Fragrance & Essential Oil
HouseholdThe bark yields essential oil used in perfumery, aromatherapy, and fragranced products. The warm, spicy aroma is used in candles, incense, and room fresheners. [source]
Natural Dye
CraftCinnamon bark produces warm brown and russet dyes used in textile and fiber arts, creating natural colorfast hues. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest bark from trees at least 7 years old with trunk diameter of 2+ inches. Cut branches 1-2 inches in diameter and strip the bark. Dry stripped bark in sun for 2-4 weeks until it curls into quills. The thinner, curled inner bark is the highest quality product. Trees can be harvested repeatedly through coppicing; secondary growth develops on cut stumps.
Fun Facts
- 🌱 Cinnamon Cassia (often labeled simply as 'cinnamon') accounts for 75-90% of cinnamon in global commerce, while the more expensive Ceylon cinnamon is a separate species (Cinnamomum verum) often preferred by gourmet cooks.
- 🌱 A single mature Cinnamon Cassia tree can be harvested repeatedly every 5-10 years without killing it—the cut stems regrow vigorously in a process called coppicing, allowing harvests for 100+ years from one tree.
- 🌱 In traditional Indonesian medicine, cinnamon bark and leaves have been used for over 2,000 years; the spice was so valuable in medieval Europe that it was worth more than gold by weight.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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