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Mexican Mock Orange

Choisya ternata (CHOY-see-ah ter-NAH-tah)

Family: Rutaceae Unknown Shrub (3-15 ft)

Choisya ternata was named to honor the Swiss Protestant clergyman and botanist, Jacques Denis Choisy, with ternata meaning having leaflets in threes. Mexican Orange is a shrub native to the southwest USA and Mexico that prefers mild winter locations in full to part sun and protection from the hot afternoon sun. Its common name, Mexican Orange, refers to the orange fragrance emitted from the flowers and crushed leaves. Although flowering occurs in late spring, it is possible to see additional blooms throughout the summer and into the fall. In areas north of zone 7 it can be grown in pots and brought indoors when temperatures drop below 14 degrees Fahrenheit. Temperatures below 5 degrees Fahrenheit can cause the plant to defoliate. Pruning is typically not necessary, but its tolerance for pruning allows for the removal of dead or damaged branches. Cutting to ground level is also tolerated. The shrub is known for its fragrant and lovely leaves and fragrant showy white blooms in summer. It grows in shrub form 4-8 feet tall and wide and can be used as a hedge or for privacy. Plant in humusy, moist, well-drained soils and prune after flowering for possible additional blooms. Once established it is moderately tolerant of brief droughts. In its native habitat, it can be found growing in chalky soils, often a seaside location. Cold winds can cause damage when shelter is not provided. Young plants tend to grow at a rapid pace, but as the plant ages, it will grow at a more moderate pace. Insects, Diseases, and Other Plant Problems: No serious insect or disease issues. Provide proper drainage to prevent root rot and crown rot. Limbs can die, even when there is no apparent reason.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 62 attributes.

How it fits the guild

Guild layer 3 - Shrub (3-15 ft) Optimal soil pH Acid (<6.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Full plant profile

Growing Conditions
Plant type
Perennial; Shrub
Life cycle
Woody
USDA zones
7b, 8a, 8b, 9a, 9b, 10a, 10b
Light
Deep shade (Less than 2 hours to no direct sunlight) | Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Clay; Loam (Silt)
Soil pH
Acid (<6.0)
Soil drainage
Good Drainage | Moist
Available space
3 feet-6 feet; 6-feet-12 feet
NC region
Coastal; Piedmont
Mature size
Height: 4 ft. 0 in. - 8 ft. 0 in. | Width: 4 ft. 0 in. - 8 ft. 0 in.
Growth rate
Medium
Maintenance
Medium
Canopy layer
3 - Shrub (3-15 ft)
Form & Appearance
Habit / form
Dense; Mounding; Rounded
Texture
Medium
Foliage
Broadleaf Evergreen
Leaf color
Gold/Yellow; Green
Leaf type
Compound (Pinnately , Bipinnately, Palmately)
Leaf arrangement
Opposite
Leaf shape
Elliptical; Oblanceolate
Leaf margin
Entire
Leaf feel
Glossy
Leaf value
Fragrant
Leaf size
1-3 inches long, 1-3 inches wide
Hairs present
No
Leaf detail
The 3-6 inch leaves are trifoliate, glossy, aromatic and medium green in color. The new foliage is yellow-green.
Flower color
White
Flower value
Fragrant; Long Bloom Season; Showy
Flower form
Corymb; Cyme
Flower shape
Star
Flower size
1-3 inches
Flower detail
1.25-inch wide star-shaped flowers appear in corymbs in summer and are white and fragrant.
Bloom time
Fall; Spring; Summer
Fruit color
Brown/Copper
Fruit type
Capsule
Fruit detail
The fruits are 2 to 6 sectioned capsules.
Bark detail
Smooth trunk.
Stem detail
Multi-trunked.
Wildlife & Ecology
Native status
Unknown
Origin
Southwestern US and Mexico
Distribution
AZ, NM, TX
Wildlife value
Attracts butterflies and bees.
Attracts
Bees; Butterflies
Play value
Attracts Pollinators; Buffer; Fragrance; Screening; Wildlife Food Source
Food & Medicine
Harvest time
Fall
Fruit type
Capsule

Uses (ethnobotany)

In warmer climates it can be grown outdoors as an evergreen plant, while cooler climates require that they be brought indoors in the colder months.

Landscape Use
Landscape location
Container; Naturalized Area; Patio; Pool/Hardscape; Woodland
Landscape theme
Butterfly Garden; Cottage Garden; Drought Tolerant Garden; Pollinator Garden
Design feature
Border; Foundation Planting; Hedge; Screen/Privacy; Specimen
Garden tags
#evergreen #white flowers #bush #security plant #full sun tolerant #shrub #fragrant flowers #fragrant leaves #butterfly friendly #partial shade tolerant #container plant #showy flowers #rabbit resistant #drought tolerant #broadleaf evergreen #broadleaf #evergreen shrub #butterfly garden #frost tolerant #hedge #bee friendly #compact
Problems & Resistance
Resistant to
Drought; Pollution; Rabbits
Particularly resistant to
Honey fungus
Propagation
Seed; Stem Cutting

Planted at Hunnicutt

Nobody’s planted this one yet.