How to Grow Mexican Orange Blossom
iNaturalist
Mexican Orange Blossom
Choisya ternata
shrubChoisya is an evergreen shrub prized for its fragrant white flowers and aromatic foliage that smells of orange when brushed. It grows as a dense, rounded bush with glossy, trifoliate (three-leafed) leaves and produces abundant clusters of sweetly scented blooms in spring, with occasional repeat flowering in fall. This Mediterranean native is popular in ornamental gardens for its attractive year-round appearance and low-maintenance requirements.
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Example Mexican Orange Blossom timeline · Pittsburgh, PA (Zone 6b)
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Plant Mexican Orange Blossom
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 Mexican Orange Blossom
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 8-10; tolerates zone 7b with protection in cold winters
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Establishment
6-12 monthsYoung transplant with small, tender growth adjusting to landscape conditions
Water regularly to establish deep roots; avoid transplanting in extreme heat or cold; stake if windy
Vegetative Growth
1-2 yearsBush develops dense foliage with characteristic trifoliate leaves; branch structure forms
Prune lightly after first flowering to shape; fertilize monthly with balanced fertilizer during growing season; mulch to retain moisture
Flowering
4-6 weeks per flushAbundant white flowers in fragrant clusters appear at branch tips, typically in spring and sometimes again in fall
Deadhead spent flowers to encourage repeat blooms; ensure consistent moisture during flowering; no deadheading required unless seeking extended blooming
Mature Shrub
10+ yearsFully established plant reaching 6-8 feet tall and wide; flowers reliably each season with dense, attractive foliage year-round
Prune after flowering to maintain shape and size; thin interior branches for air circulation; reduce fertilizer frequency; monitor for scale insects
Common Pests
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Spray with horticultural oil or neem oil in spring; prune heavily infested branches; improve air circulation
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Spray with insecticidal soap or neem oil; encourage beneficial insects; avoid over-fertilizing with nitrogen
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Increase humidity and water pressure spray; use miticide if severe; avoid sulfur sprays as Choisya is sensitive
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Remove affected leaves; improve air circulation; avoid wetting foliage; apply fungicide if severe
Uses
Fragrant Flowering Shrub
OrnamentalChoisya is extensively cultivated as an ornamental landscape shrub for its abundant, sweetly scented white flowers and attractive evergreen foliage. Its dense growth habit and year-round visual appeal make it ideal for hedging, screening, and focal points in Mediterranean and contemporary gardens. [source]
Natural Fragrance Source
HouseholdThe aromatic foliage releases a distinctive sweet orange scent when brushed or handled, making it popular for placement near seating areas and pathways. Flower clusters can be used in small floral arrangements to perfume indoor spaces. [source]
Pollinator & Wildlife Support
WildlifeThe abundant white flowers attract bees, butterflies, and other pollinating insects, providing valuable spring nectar sources. The dense evergreen structure provides shelter and nesting habitat for birds year-round. [source]
Floral Arrangements & Decoration
CraftFresh flowers and fragrant stems are used in bouquets, centerpieces, and seasonal decorations for their elegant white blooms and delicate appearance. The foliage can be incorporated into dried flower arrangements. [source]
Harvest Tips
Choisya is ornamental; no harvesting required. For floral arrangements, cut stems of flowers in early morning when they are fully opened. Foliage can be harvested year-round for fragrance; gently brush leaves to release the orange scent.
Fun Facts
- 🌱 Choisya ternata is named 'Mexican Orange Blossom' despite being native to Mexico—the name refers to both its orange-scented foliage and white flowers that resemble orange blossoms.
- 🌱 The cultivar 'Sundance' (also called 'Aztec Pearl') features golden-yellow foliage that becomes bright orange in winter; it's one of the few yellow-leaved evergreen shrubs hardy to zone 8.
- 🌱 Choisya has been in cultivation in European gardens since the 19th century and remains a favorite in Mediterranean, contemporary, and coastal landscapes for its low-maintenance nature and extended blooming season.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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